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authorjaseg <git@jaseg.de>2021-06-06 13:25:45 +0200
committerjaseg <git@jaseg.de>2021-06-06 13:25:45 +0200
commit5a5ba2b709f01b2100cd767a25a41737541ad53c (patch)
tree6362ca960945e08d4a77b7f059e971e6099217c9 /gerber
parent8bad573131e4c91782425d81a141dd656b622d7b (diff)
parent72257258edf16cbda691483ef1fa722192ac0d38 (diff)
downloadgerbonara-5a5ba2b709f01b2100cd767a25a41737541ad53c.tar.gz
gerbonara-5a5ba2b709f01b2100cd767a25a41737541ad53c.tar.bz2
gerbonara-5a5ba2b709f01b2100cd767a25a41737541ad53c.zip
Graft pcb-tools upstream onto gerbonara tree
Diffstat (limited to 'gerber')
-rw-r--r--gerber/__init__.py28
-rw-r--r--gerber/__main__.py122
-rw-r--r--gerber/am_eval.py109
-rw-r--r--gerber/am_read.py255
-rw-r--r--gerber/am_statements.py1046
-rw-r--r--gerber/cam.py286
-rw-r--r--gerber/common.py71
-rwxr-xr-xgerber/excellon.py904
-rw-r--r--gerber/excellon_report/excellon_drr.py25
-rw-r--r--gerber/excellon_settings.py105
-rw-r--r--gerber/excellon_statements.py979
-rw-r--r--gerber/excellon_tool.py190
-rw-r--r--gerber/exceptions.py36
-rw-r--r--gerber/gerber_statements.py1189
-rw-r--r--gerber/ipc356.py485
-rw-r--r--gerber/layers.py295
-rw-r--r--gerber/ncparam/allegro.py25
-rw-r--r--gerber/operations.py126
-rw-r--r--gerber/pcb.py124
-rw-r--r--gerber/primitives.py1697
-rw-r--r--gerber/render/__init__.py31
-rw-r--r--gerber/render/cairo_backend.py616
-rw-r--r--gerber/render/excellon_backend.py188
-rw-r--r--gerber/render/render.py246
-rw-r--r--gerber/render/rs274x_backend.py510
-rw-r--r--gerber/render/theme.py112
-rw-r--r--gerber/rs274x.py800
-rw-r--r--gerber/tests/__init__.py0
-rw-r--r--gerber/tests/golden/example_am_exposure_modifier.pngbin0 -> 10091 bytes
-rw-r--r--gerber/tests/golden/example_coincident_hole.pngbin0 -> 47261 bytes
-rw-r--r--gerber/tests/golden/example_cutin_multiple.pngbin0 -> 1348 bytes
-rw-r--r--gerber/tests/golden/example_flash_circle.pngbin0 -> 5978 bytes
-rw-r--r--gerber/tests/golden/example_flash_obround.pngbin0 -> 3443 bytes
-rw-r--r--gerber/tests/golden/example_flash_polygon.pngbin0 -> 4087 bytes
-rw-r--r--gerber/tests/golden/example_flash_rectangle.pngbin0 -> 1731 bytes
-rw-r--r--gerber/tests/golden/example_fully_coincident.pngbin0 -> 71825 bytes
-rw-r--r--gerber/tests/golden/example_holes_dont_clear.pngbin0 -> 11552 bytes
-rw-r--r--gerber/tests/golden/example_not_overlapping_contour.pngbin0 -> 71825 bytes
-rw-r--r--gerber/tests/golden/example_not_overlapping_touching.pngbin0 -> 96557 bytes
-rw-r--r--gerber/tests/golden/example_overlapping_contour.pngbin0 -> 33301 bytes
-rw-r--r--gerber/tests/golden/example_overlapping_touching.pngbin0 -> 33301 bytes
-rw-r--r--gerber/tests/golden/example_simple_contour.pngbin0 -> 31830 bytes
-rw-r--r--gerber/tests/golden/example_single_contour.pngbin0 -> 556 bytes
-rw-r--r--gerber/tests/golden/example_single_contour_3.pngbin0 -> 2297 bytes
-rw-r--r--gerber/tests/golden/example_single_quadrant.gbr16
-rw-r--r--gerber/tests/golden/example_single_quadrant.pngbin0 -> 9658 bytes
-rw-r--r--gerber/tests/golden/example_two_square_boxes.gbr16
-rw-r--r--gerber/tests/golden/example_two_square_boxes.pngbin0 -> 18219 bytes
-rw-r--r--gerber/tests/resources/board_outline.GKO503
-rw-r--r--gerber/tests/resources/bottom_copper.GBL1811
-rw-r--r--gerber/tests/resources/bottom_mask.GBS66
-rw-r--r--gerber/tests/resources/bottom_silk.GBO6007
-rw-r--r--gerber/tests/resources/example_am_exposure_modifier.gbr16
-rw-r--r--gerber/tests/resources/example_coincident_hole.gbr24
-rw-r--r--gerber/tests/resources/example_cutin.gbr18
-rw-r--r--gerber/tests/resources/example_cutin_multiple.gbr28
-rw-r--r--gerber/tests/resources/example_flash_circle.gbr10
-rw-r--r--gerber/tests/resources/example_flash_obround.gbr10
-rw-r--r--gerber/tests/resources/example_flash_polygon.gbr10
-rw-r--r--gerber/tests/resources/example_flash_rectangle.gbr10
-rw-r--r--gerber/tests/resources/example_fully_coincident.gbr23
-rw-r--r--gerber/tests/resources/example_guess_by_content.g0166
-rw-r--r--gerber/tests/resources/example_holes_dont_clear.gbr13
-rw-r--r--gerber/tests/resources/example_level_holes.gbr39
-rw-r--r--gerber/tests/resources/example_not_overlapping_contour.gbr20
-rw-r--r--gerber/tests/resources/example_not_overlapping_touching.gbr20
-rw-r--r--gerber/tests/resources/example_overlapping_contour.gbr20
-rw-r--r--gerber/tests/resources/example_overlapping_touching.gbr20
-rw-r--r--gerber/tests/resources/example_simple_contour.gbr16
-rw-r--r--gerber/tests/resources/example_single_contour_1.gbr15
-rw-r--r--gerber/tests/resources/example_single_contour_2.gbr15
-rw-r--r--gerber/tests/resources/example_single_contour_3.gbr15
-rw-r--r--gerber/tests/resources/example_single_quadrant.gbr18
-rw-r--r--gerber/tests/resources/example_two_square_boxes.gbr19
-rw-r--r--gerber/tests/resources/ipc-d-356.ipc115
-rw-r--r--gerber/tests/resources/multiline_read.ger9
-rw-r--r--gerber/tests/resources/ncdrill.DRD51
-rw-r--r--gerber/tests/resources/top_copper.GTL27
-rw-r--r--gerber/tests/resources/top_mask.GTS162
-rw-r--r--gerber/tests/resources/top_silk.GTO2099
-rw-r--r--gerber/tests/test_am_statements.py395
-rw-r--r--gerber/tests/test_cairo_backend.py279
-rw-r--r--gerber/tests/test_cam.py151
-rw-r--r--gerber/tests/test_common.py38
-rw-r--r--gerber/tests/test_excellon.py366
-rw-r--r--gerber/tests/test_excellon_statements.py734
-rw-r--r--gerber/tests/test_gerber_statements.py959
-rw-r--r--gerber/tests/test_ipc356.py148
-rw-r--r--gerber/tests/test_layers.py158
-rw-r--r--gerber/tests/test_primitives.py1429
-rw-r--r--gerber/tests/test_rs274x.py55
-rw-r--r--gerber/tests/test_rs274x_backend.py232
-rw-r--r--gerber/tests/test_utils.py167
-rw-r--r--gerber/utils.py458
94 files changed, 27596 insertions, 0 deletions
diff --git a/gerber/__init__.py b/gerber/__init__.py
new file mode 100644
index 0000000..1faba53
--- /dev/null
+++ b/gerber/__init__.py
@@ -0,0 +1,28 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2013-2014 Paulo Henrique Silva <ph.silva@gmail.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Gerber Tools
+============
+**Gerber Tools**
+
+gerber-tools provides utilities for working with Gerber (RS-274X) and Excellon
+files in python.
+"""
+
+from .common import read, loads
+from .layers import load_layer, load_layer_data
+from .pcb import PCB
diff --git a/gerber/__main__.py b/gerber/__main__.py
new file mode 100644
index 0000000..988adff
--- /dev/null
+++ b/gerber/__main__.py
@@ -0,0 +1,122 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2013-2014 Paulo Henrique Silva <ph.silva@gmail.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+import os
+import argparse
+from .render import available_renderers
+from .render import theme
+from .pcb import PCB
+from . import load_layer
+
+
+def main():
+ parser = argparse.ArgumentParser(
+ description='Render gerber files to image',
+ prog='gerber-render'
+ )
+ parser.add_argument(
+ 'filenames', metavar='FILENAME', type=str, nargs='+',
+ help='Gerber files to render. If a directory is provided, it should '
+ 'be provided alone and should contain the gerber files for a '
+ 'single PCB.'
+ )
+ parser.add_argument(
+ '--outfile', '-o', type=str, nargs='?', default='out',
+ help="Output Filename (extension will be added automatically)"
+ )
+ parser.add_argument(
+ '--backend', '-b', choices=available_renderers.keys(), default='cairo',
+ help='Choose the backend to use to generate the output.'
+ )
+ parser.add_argument(
+ '--theme', '-t', choices=theme.THEMES.keys(), default='default',
+ help='Select render theme.'
+ )
+ parser.add_argument(
+ '--width', type=int, default=1920, help='Maximum width.'
+ )
+ parser.add_argument(
+ '--height', type=int, default=1080, help='Maximum height.'
+ )
+ parser.add_argument(
+ '--verbose', '-v', action='store_true', default=False,
+ help='Increase verbosity of the output.'
+ )
+ # parser.add_argument(
+ # '--quick', '-q', action='store_true', default=False,
+ # help='Skip longer running rendering steps to produce lower quality'
+ # ' output faster. This only has an effect for the freecad backend.'
+ # )
+ # parser.add_argument(
+ # '--nox', action='store_true', default=False,
+ # help='Run without using any GUI elements. This may produce suboptimal'
+ # 'output. For the freecad backend, colors, transparancy, and '
+ # 'visibility cannot be set without a GUI instance.'
+ # )
+
+ args = parser.parse_args()
+
+ renderer = available_renderers[args.backend]()
+
+ if args.backend in ['cairo', ]:
+ outext = 'png'
+ else:
+ outext = None
+
+ if os.path.exists(args.filenames[0]) and os.path.isdir(args.filenames[0]):
+ directory = args.filenames[0]
+ pcb = PCB.from_directory(directory)
+
+ if args.backend in ['cairo', ]:
+ top = pcb.top_layers
+ bottom = pcb.bottom_layers
+ copper = pcb.copper_layers
+
+ outline = pcb.outline_layer
+ if outline:
+ top = [outline] + top
+ bottom = [outline] + bottom
+ copper = [outline] + copper + pcb.drill_layers
+
+ renderer.render_layers(
+ layers=top, theme=theme.THEMES[args.theme],
+ max_height=args.height, max_width=args.width,
+ filename='{0}.top.{1}'.format(args.outfile, outext)
+ )
+ renderer.render_layers(
+ layers=bottom, theme=theme.THEMES[args.theme],
+ max_height=args.height, max_width=args.width,
+ filename='{0}.bottom.{1}'.format(args.outfile, outext)
+ )
+ renderer.render_layers(
+ layers=copper, theme=theme.THEMES['Transparent Multilayer'],
+ max_height=args.height, max_width=args.width,
+ filename='{0}.copper.{1}'.format(args.outfile, outext))
+ else:
+ pass
+ else:
+ filenames = args.filenames
+ for filename in filenames:
+ layer = load_layer(filename)
+ settings = theme.THEMES[args.theme].get(layer.layer_class, None)
+ renderer.render_layer(layer, settings=settings)
+ renderer.dump(filename='{0}.{1}'.format(args.outfile, outext))
+
+
+if __name__ == '__main__':
+ main()
+
diff --git a/gerber/am_eval.py b/gerber/am_eval.py
new file mode 100644
index 0000000..3a7e1ed
--- /dev/null
+++ b/gerber/am_eval.py
@@ -0,0 +1,109 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+# copyright 2014 Paulo Henrique Silva <ph.silva@gmail.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+""" This module provides RS-274-X AM macro evaluation.
+"""
+
+
+class OpCode:
+ PUSH = 1
+ LOAD = 2
+ STORE = 3
+ ADD = 4
+ SUB = 5
+ MUL = 6
+ DIV = 7
+ PRIM = 8
+
+ @staticmethod
+ def str(opcode):
+ if opcode == OpCode.PUSH:
+ return "OPCODE_PUSH"
+ elif opcode == OpCode.LOAD:
+ return "OPCODE_LOAD"
+ elif opcode == OpCode.STORE:
+ return "OPCODE_STORE"
+ elif opcode == OpCode.ADD:
+ return "OPCODE_ADD"
+ elif opcode == OpCode.SUB:
+ return "OPCODE_SUB"
+ elif opcode == OpCode.MUL:
+ return "OPCODE_MUL"
+ elif opcode == OpCode.DIV:
+ return "OPCODE_DIV"
+ elif opcode == OpCode.PRIM:
+ return "OPCODE_PRIM"
+ else:
+ return "UNKNOWN"
+
+
+def eval_macro(instructions, parameters={}):
+
+ if not isinstance(parameters, type({})):
+ p = {}
+ for i, val in enumerate(parameters):
+ p[i + 1] = val
+
+ parameters = p
+
+ stack = []
+
+ def pop():
+ return stack.pop()
+
+ def push(op):
+ stack.append(op)
+
+ def top():
+ return stack[-1]
+
+ def empty():
+ return len(stack) == 0
+
+ for opcode, argument in instructions:
+ if opcode == OpCode.PUSH:
+ push(argument)
+
+ elif opcode == OpCode.LOAD:
+ push(parameters.get(argument, 0))
+
+ elif opcode == OpCode.STORE:
+ parameters[argument] = pop()
+
+ elif opcode == OpCode.ADD:
+ op1 = pop()
+ op2 = pop()
+ push(op2 + op1)
+
+ elif opcode == OpCode.SUB:
+ op1 = pop()
+ op2 = pop()
+ push(op2 - op2)
+
+ elif opcode == OpCode.MUL:
+ op1 = pop()
+ op2 = pop()
+ push(op2 * op1)
+
+ elif opcode == OpCode.DIV:
+ op1 = pop()
+ op2 = pop()
+ push(op2 / op1)
+
+ elif opcode == OpCode.PRIM:
+ yield "%d,%s" % (argument, ",".join([str(x) for x in stack]))
+ stack = []
diff --git a/gerber/am_read.py b/gerber/am_read.py
new file mode 100644
index 0000000..4aff00b
--- /dev/null
+++ b/gerber/am_read.py
@@ -0,0 +1,255 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+# copyright 2014 Paulo Henrique Silva <ph.silva@gmail.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+""" This module provides RS-274-X AM macro modifiers parsing.
+"""
+
+from .am_eval import OpCode, eval_macro
+
+import string
+
+
+class Token:
+ ADD = "+"
+ SUB = "-"
+ # compatibility as many gerber writes do use non compliant X
+ MULT = ("x", "X")
+ DIV = "/"
+ OPERATORS = (ADD, SUB, MULT[0], MULT[1], DIV)
+ LEFT_PARENS = "("
+ RIGHT_PARENS = ")"
+ EQUALS = "="
+ EOF = "EOF"
+
+
+def token_to_opcode(token):
+ if token == Token.ADD:
+ return OpCode.ADD
+ elif token == Token.SUB:
+ return OpCode.SUB
+ elif token in Token.MULT:
+ return OpCode.MUL
+ elif token == Token.DIV:
+ return OpCode.DIV
+ else:
+ return None
+
+
+def precedence(token):
+ if token == Token.ADD or token == Token.SUB:
+ return 1
+ elif token in Token.MULT or token == Token.DIV:
+ return 2
+ else:
+ return 0
+
+
+def is_op(token):
+ return token in Token.OPERATORS
+
+
+class Scanner:
+
+ def __init__(self, s):
+ self.buff = s
+ self.n = 0
+
+ def eof(self):
+ return self.n == len(self.buff)
+
+ def peek(self):
+ if not self.eof():
+ return self.buff[self.n]
+
+ return Token.EOF
+
+ def ungetc(self):
+ if self.n > 0:
+ self.n -= 1
+
+ def getc(self):
+ if self.eof():
+ return ""
+
+ c = self.buff[self.n]
+ self.n += 1
+ return c
+
+ def readint(self):
+ n = ""
+ while not self.eof() and (self.peek() in string.digits):
+ n += self.getc()
+ return int(n)
+
+ def readfloat(self):
+ n = ""
+ while not self.eof() and (self.peek() in string.digits or self.peek() == "."):
+ n += self.getc()
+ # weird case where zero is ommited inthe last modifider, like in ',0.'
+ if n == ".":
+ return 0
+ return float(n)
+
+ def readstr(self, end="*"):
+ s = ""
+ while not self.eof() and self.peek() != end:
+ s += self.getc()
+ return s.strip()
+
+
+def print_instructions(instructions):
+ for opcode, argument in instructions:
+ print("%s %s" % (OpCode.str(opcode),
+ str(argument) if argument is not None else ""))
+
+
+def read_macro(macro):
+ instructions = []
+
+ for block in macro.split("*"):
+
+ is_primitive = False
+ is_equation = False
+
+ found_equation_left_side = False
+ found_primitive_code = False
+
+ equation_left_side = 0
+ primitive_code = 0
+
+ unary_minus_allowed = False
+ unary_minus = False
+
+ if Token.EQUALS in block:
+ is_equation = True
+ else:
+ is_primitive = True
+
+ scanner = Scanner(block)
+
+ # inlined here for compactness and convenience
+ op_stack = []
+
+ def pop():
+ return op_stack.pop()
+
+ def push(op):
+ op_stack.append(op)
+
+ def top():
+ return op_stack[-1]
+
+ def empty():
+ return len(op_stack) == 0
+
+ while not scanner.eof():
+
+ c = scanner.getc()
+
+ if c == ",":
+ found_primitive_code = True
+
+ # add all instructions on the stack to finish last modifier
+ while not empty():
+ instructions.append((token_to_opcode(pop()), None))
+
+ unary_minus_allowed = True
+
+ elif c in Token.OPERATORS:
+ if c == Token.SUB and unary_minus_allowed:
+ unary_minus = True
+ unary_minus_allowed = False
+ continue
+
+ while not empty() and is_op(top()) and precedence(top()) >= precedence(c):
+ instructions.append((token_to_opcode(pop()), None))
+
+ push(c)
+
+ elif c == Token.LEFT_PARENS:
+ push(c)
+
+ elif c == Token.RIGHT_PARENS:
+ while not empty() and top() != Token.LEFT_PARENS:
+ instructions.append((token_to_opcode(pop()), None))
+
+ if empty():
+ raise ValueError("unbalanced parentheses")
+
+ # discard "("
+ pop()
+
+ elif c.startswith("$"):
+ n = scanner.readint()
+
+ if is_equation and not found_equation_left_side:
+ equation_left_side = n
+ else:
+ instructions.append((OpCode.LOAD, n))
+
+ elif c == Token.EQUALS:
+ found_equation_left_side = True
+
+ elif c == "0":
+ if is_primitive and not found_primitive_code:
+ instructions.append((OpCode.PUSH, scanner.readstr("*")))
+ found_primitive_code = True
+ else:
+ # decimal or integer disambiguation
+ if scanner.peek() not in '.' or scanner.peek() == Token.EOF:
+ instructions.append((OpCode.PUSH, 0))
+
+ elif c in "123456789.":
+ scanner.ungetc()
+
+ if is_primitive and not found_primitive_code:
+ primitive_code = scanner.readint()
+ else:
+ n = scanner.readfloat()
+ if unary_minus:
+ unary_minus = False
+ n *= -1
+
+ instructions.append((OpCode.PUSH, n))
+ else:
+ # whitespace or unknown char
+ pass
+
+ # add all instructions on the stack to finish last modifier (if any)
+ while not empty():
+ instructions.append((token_to_opcode(pop()), None))
+
+ # at end, we either have a primitive or a equation
+ if is_primitive and found_primitive_code:
+ instructions.append((OpCode.PRIM, primitive_code))
+
+ if is_equation:
+ instructions.append((OpCode.STORE, equation_left_side))
+
+ return instructions
+
+if __name__ == '__main__':
+ import sys
+
+ instructions = read_macro(sys.argv[1])
+
+ print("insructions:")
+ print_instructions(instructions)
+
+ print("eval:")
+ for primitive in eval_macro(instructions):
+ print(primitive)
diff --git a/gerber/am_statements.py b/gerber/am_statements.py
new file mode 100644
index 0000000..31c0ae4
--- /dev/null
+++ b/gerber/am_statements.py
@@ -0,0 +1,1046 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2015 Hamilton Kibbe <ham@hamiltonkib.be> and Paulo Henrique Silva
+# <ph.silva@gmail.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from math import asin
+import math
+
+from .primitives import *
+from .utils import validate_coordinates, inch, metric, rotate_point
+
+
+
+# TODO: Add support for aperture macro variables
+__all__ = ['AMPrimitive', 'AMCommentPrimitive', 'AMCirclePrimitive',
+ 'AMVectorLinePrimitive', 'AMOutlinePrimitive', 'AMPolygonPrimitive',
+ 'AMMoirePrimitive', 'AMThermalPrimitive', 'AMCenterLinePrimitive',
+ 'AMLowerLeftLinePrimitive', 'AMUnsupportPrimitive']
+
+
+class AMPrimitive(object):
+ """ Aperture Macro Primitive Base Class
+
+ Parameters
+ ----------
+ code : int
+ primitive shape code
+
+ exposure : str
+ on or off Primitives with exposure on create a slid part of
+ the macro aperture, and primitives with exposure off erase the
+ solid part created previously in the aperture macro definition.
+ .. note::
+ The erasing effect is limited to the aperture definition in
+ which it occurs.
+
+ Returns
+ -------
+ primitive : :class: `gerber.am_statements.AMPrimitive`
+
+ Raises
+ ------
+ TypeError, ValueError
+ """
+
+ def __init__(self, code, exposure=None):
+ VALID_CODES = (0, 1, 2, 4, 5, 6, 7, 20, 21, 22, 9999)
+ if not isinstance(code, int):
+ raise TypeError('Aperture Macro Primitive code must be an integer')
+ elif code not in VALID_CODES:
+ raise ValueError('Invalid Code. Valid codes are %s.' %
+ ', '.join(map(str, VALID_CODES)))
+ if exposure is not None and exposure.lower() not in ('on', 'off'):
+ raise ValueError('Exposure must be either on or off')
+ self.code = code
+ self.exposure = exposure.lower() if exposure is not None else None
+
+ def to_inch(self):
+ raise NotImplementedError('Subclass must implement `to-inch`')
+
+ def to_metric(self):
+ raise NotImplementedError('Subclass must implement `to-metric`')
+
+ @property
+ def _level_polarity(self):
+ if self.exposure == 'off':
+ return 'clear'
+ return 'dark'
+
+ def to_primitive(self, units):
+ """ Return a Primitive instance based on the specified macro params.
+ """
+ print('Rendering {}s is not supported yet.'.format(str(self.__class__)))
+
+ def __eq__(self, other):
+ return self.__dict__ == other.__dict__
+
+
+class AMCommentPrimitive(AMPrimitive):
+ """ Aperture Macro Comment primitive. Code 0
+
+ The comment primitive has no image meaning. It is used to include human-
+ readable comments into the AM command.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.1:** Comment, primitive code 0
+
+ Parameters
+ ----------
+ code : int
+ Aperture Macro primitive code. 0 Indicates an AMCommentPrimitive
+
+ comment : str
+ The comment as a string.
+
+ Returns
+ -------
+ CommentPrimitive : :class:`gerber.am_statements.AMCommentPrimitive`
+ An Initialized AMCommentPrimitive
+
+ Raises
+ ------
+ ValueError
+ """
+ @classmethod
+ def from_gerber(cls, primitive):
+ primitive = primitive.strip()
+ code = int(primitive[0])
+ comment = primitive[1:]
+ return cls(code, comment)
+
+ def __init__(self, code, comment):
+ if code != 0:
+ raise ValueError('Not a valid Aperture Macro Comment statement')
+ super(AMCommentPrimitive, self).__init__(code)
+ self.comment = comment.strip(' *')
+
+ def to_inch(self):
+ pass
+
+ def to_metric(self):
+ pass
+
+ def to_gerber(self, settings=None):
+ return '0 %s *' % self.comment
+
+ def to_primitive(self, units):
+ """
+ Returns None - has not primitive representation
+ """
+ return None
+
+ def __str__(self):
+ return '<Aperture Macro Comment: %s>' % self.comment
+
+
+class AMCirclePrimitive(AMPrimitive):
+ """ Aperture macro Circle primitive. Code 1
+
+ A circle primitive is defined by its center point and diameter.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.2:** Circle, primitive code 1
+
+ Parameters
+ ----------
+ code : int
+ Circle Primitive code. Must be 1
+
+ exposure : string
+ 'on' or 'off'
+
+ diameter : float
+ Circle diameter
+
+ position : tuple (<float>, <float>)
+ Position of the circle relative to the macro origin
+
+ Returns
+ -------
+ CirclePrimitive : :class:`gerber.am_statements.AMCirclePrimitive`
+ An initialized AMCirclePrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(',')
+ code = int(modifiers[0])
+ exposure = 'on' if float(modifiers[1]) == 1 else 'off'
+ diameter = float(modifiers[2])
+ position = (float(modifiers[3]), float(modifiers[4]))
+ return cls(code, exposure, diameter, position)
+
+ @classmethod
+ def from_primitive(cls, primitive):
+ return cls(1, 'on', primitive.diameter, primitive.position)
+
+ def __init__(self, code, exposure, diameter, position):
+ validate_coordinates(position)
+ if code != 1:
+ raise ValueError('CirclePrimitive code is 1')
+ super(AMCirclePrimitive, self).__init__(code, exposure)
+ self.diameter = diameter
+ self.position = position
+
+ def to_inch(self):
+ self.diameter = inch(self.diameter)
+ self.position = tuple([inch(x) for x in self.position])
+
+ def to_metric(self):
+ self.diameter = metric(self.diameter)
+ self.position = tuple([metric(x) for x in self.position])
+
+ def to_gerber(self, settings=None):
+ data = dict(code=self.code,
+ exposure='1' if self.exposure == 'on' else 0,
+ diameter=self.diameter,
+ x=self.position[0],
+ y=self.position[1])
+ return '{code},{exposure},{diameter},{x},{y}*'.format(**data)
+
+ def to_primitive(self, units):
+ return Circle((self.position), self.diameter, units=units, level_polarity=self._level_polarity)
+
+
+class AMVectorLinePrimitive(AMPrimitive):
+ """ Aperture Macro Vector Line primitive. Code 2 or 20.
+
+ A vector line is a rectangle defined by its line width, start, and end
+ points. The line ends are rectangular.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.3:** Vector Line, primitive code 2 or 20.
+
+ Parameters
+ ----------
+ code : int
+ Vector Line Primitive code. Must be either 2 or 20.
+
+ exposure : string
+ 'on' or 'off'
+
+ width : float
+ Line width
+
+ start : tuple (<float>, <float>)
+ coordinate of line start point
+
+ end : tuple (<float>, <float>)
+ coordinate of line end point
+
+ rotation : float
+ Line rotation about the origin.
+
+ Returns
+ -------
+ LinePrimitive : :class:`gerber.am_statements.AMVectorLinePrimitive`
+ An initialized AMVectorLinePrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+
+ @classmethod
+ def from_primitive(cls, primitive):
+ return cls(2, 'on', primitive.aperture.width, primitive.start, primitive.end, 0)
+
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(',')
+ code = int(modifiers[0])
+ exposure = 'on' if float(modifiers[1]) == 1 else 'off'
+ width = float(modifiers[2])
+ start = (float(modifiers[3]), float(modifiers[4]))
+ end = (float(modifiers[5]), float(modifiers[6]))
+ rotation = float(modifiers[7])
+ return cls(code, exposure, width, start, end, rotation)
+
+ def __init__(self, code, exposure, width, start, end, rotation):
+ validate_coordinates(start)
+ validate_coordinates(end)
+ if code not in (2, 20):
+ raise ValueError('VectorLinePrimitive codes are 2 or 20')
+ super(AMVectorLinePrimitive, self).__init__(code, exposure)
+ self.width = width
+ self.start = start
+ self.end = end
+ self.rotation = rotation
+
+ def to_inch(self):
+ self.width = inch(self.width)
+ self.start = tuple([inch(x) for x in self.start])
+ self.end = tuple([inch(x) for x in self.end])
+
+ def to_metric(self):
+ self.width = metric(self.width)
+ self.start = tuple([metric(x) for x in self.start])
+ self.end = tuple([metric(x) for x in self.end])
+
+ def to_gerber(self, settings=None):
+ fmtstr = '{code},{exp},{width},{startx},{starty},{endx},{endy},{rotation}*'
+ data = dict(code=self.code,
+ exp=1 if self.exposure == 'on' else 0,
+ width=self.width,
+ startx=self.start[0],
+ starty=self.start[1],
+ endx=self.end[0],
+ endy=self.end[1],
+ rotation=self.rotation)
+ return fmtstr.format(**data)
+
+ def to_primitive(self, units):
+ """
+ Convert this to a primitive. We use the Outline to represent this (instead of Line)
+ because the behaviour of the end caps is different for aperture macros compared to Lines
+ when rotated.
+ """
+
+ # Use a line to generate our vertices easily
+ line = Line(self.start, self.end, Rectangle(None, self.width, self.width))
+ vertices = line.vertices
+
+ aperture = Circle((0, 0), 0)
+
+ lines = []
+ prev_point = rotate_point(vertices[-1], self.rotation, (0, 0))
+ for point in vertices:
+ cur_point = rotate_point(point, self.rotation, (0, 0))
+
+ lines.append(Line(prev_point, cur_point, aperture))
+
+ return Outline(lines, units=units, level_polarity=self._level_polarity)
+
+
+class AMOutlinePrimitive(AMPrimitive):
+ """ Aperture Macro Outline primitive. Code 4.
+
+ An outline primitive is an area enclosed by an n-point polygon defined by
+ its start point and n subsequent points. The outline must be closed, i.e.
+ the last point must be equal to the start point. Self intersecting
+ outlines are not allowed.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.6:** Outline, primitive code 4.
+
+ Parameters
+ ----------
+ code : int
+ OutlinePrimitive code. Must be 6.
+
+ exposure : string
+ 'on' or 'off'
+
+ start_point : tuple (<float>, <float>)
+ coordinate of outline start point
+
+ points : list of tuples (<float>, <float>)
+ coordinates of subsequent points
+
+ rotation : float
+ outline rotation about the origin.
+
+ Returns
+ -------
+ OutlinePrimitive : :class:`gerber.am_statements.AMOutlineinePrimitive`
+ An initialized AMOutlinePrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+
+ @classmethod
+ def from_primitive(cls, primitive):
+
+ start_point = (round(primitive.primitives[0].start[0], 6), round(primitive.primitives[0].start[1], 6))
+ points = []
+ for prim in primitive.primitives:
+ points.append((round(prim.end[0], 6), round(prim.end[1], 6)))
+
+ rotation = 0.0
+
+ return cls(4, 'on', start_point, points, rotation)
+
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(",")
+
+ code = int(modifiers[0])
+ exposure = "on" if float(modifiers[1]) == 1 else "off"
+ n = int(float(modifiers[2]))
+ start_point = (float(modifiers[3]), float(modifiers[4]))
+ points = []
+ for i in range(n):
+ points.append((float(modifiers[5 + i * 2]),
+ float(modifiers[5 + i * 2 + 1])))
+ rotation = float(modifiers[-1])
+ return cls(code, exposure, start_point, points, rotation)
+
+ def __init__(self, code, exposure, start_point, points, rotation):
+ """ Initialize AMOutlinePrimitive
+ """
+ validate_coordinates(start_point)
+ for point in points:
+ validate_coordinates(point)
+ if code != 4:
+ raise ValueError('OutlinePrimitive code is 4')
+ super(AMOutlinePrimitive, self).__init__(code, exposure)
+ self.start_point = start_point
+ if points[-1] != start_point:
+ raise ValueError('OutlinePrimitive must be closed')
+ self.points = points
+ self.rotation = rotation
+
+ def to_inch(self):
+ self.start_point = tuple([inch(x) for x in self.start_point])
+ self.points = tuple([(inch(x), inch(y)) for x, y in self.points])
+
+ def to_metric(self):
+ self.start_point = tuple([metric(x) for x in self.start_point])
+ self.points = tuple([(metric(x), metric(y)) for x, y in self.points])
+
+ def to_gerber(self, settings=None):
+ data = dict(
+ code=self.code,
+ exposure="1" if self.exposure == "on" else "0",
+ n_points=len(self.points),
+ start_point="%.6g,%.6g" % self.start_point,
+ points=",\n".join(["%.6g,%.6g" % point for point in self.points]),
+ rotation=str(self.rotation)
+ )
+ return "{code},{exposure},{n_points},{start_point},{points},{rotation}*".format(**data)
+
+ def to_primitive(self, units):
+ """
+ Convert this to a drawable primitive. This uses the Outline instead of Line
+ primitive to handle differences in end caps when rotated.
+ """
+
+ lines = []
+ prev_point = rotate_point(self.start_point, self.rotation)
+ for point in self.points:
+ cur_point = rotate_point(point, self.rotation)
+
+ lines.append(Line(prev_point, cur_point, Circle((0,0), 0)))
+
+ prev_point = cur_point
+
+ if lines[0].start != lines[-1].end:
+ raise ValueError('Outline must be closed')
+
+ return Outline(lines, units=units, level_polarity=self._level_polarity)
+
+
+class AMPolygonPrimitive(AMPrimitive):
+ """ Aperture Macro Polygon primitive. Code 5.
+
+ A polygon primitive is a regular polygon defined by the number of
+ vertices, the center point, and the diameter of the circumscribed circle.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.8:** Polygon, primitive code 5.
+
+ Parameters
+ ----------
+ code : int
+ PolygonPrimitive code. Must be 5.
+
+ exposure : string
+ 'on' or 'off'
+
+ vertices : int, 3 <= vertices <= 12
+ Number of vertices
+
+ position : tuple (<float>, <float>)
+ X and Y coordinates of polygon center
+
+ diameter : float
+ diameter of circumscribed circle.
+
+ rotation : float
+ polygon rotation about the origin.
+
+ Returns
+ -------
+ PolygonPrimitive : :class:`gerber.am_statements.AMPolygonPrimitive`
+ An initialized AMPolygonPrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+
+ @classmethod
+ def from_primitive(cls, primitive):
+ return cls(5, 'on', primitive.sides, primitive.position, primitive.diameter, primitive.rotation)
+
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(",")
+ code = int(modifiers[0])
+ exposure = "on" if float(modifiers[1]) == 1 else "off"
+ vertices = int(float(modifiers[2]))
+ position = (float(modifiers[3]), float(modifiers[4]))
+ try:
+ diameter = float(modifiers[5])
+ except:
+ diameter = 0
+
+ rotation = float(modifiers[6])
+ return cls(code, exposure, vertices, position, diameter, rotation)
+
+ def __init__(self, code, exposure, vertices, position, diameter, rotation):
+ """ Initialize AMPolygonPrimitive
+ """
+ if code != 5:
+ raise ValueError('PolygonPrimitive code is 5')
+ super(AMPolygonPrimitive, self).__init__(code, exposure)
+ if vertices < 3 or vertices > 12:
+ raise ValueError('Number of vertices must be between 3 and 12')
+ self.vertices = vertices
+ validate_coordinates(position)
+ self.position = position
+ self.diameter = diameter
+ self.rotation = rotation
+
+ def to_inch(self):
+ self.position = tuple([inch(x) for x in self.position])
+ self.diameter = inch(self.diameter)
+
+ def to_metric(self):
+ self.position = tuple([metric(x) for x in self.position])
+ self.diameter = metric(self.diameter)
+
+ def to_gerber(self, settings=None):
+ data = dict(
+ code=self.code,
+ exposure="1" if self.exposure == "on" else "0",
+ vertices=self.vertices,
+ position="%.4g,%.4g" % self.position,
+ diameter='%.4g' % self.diameter,
+ rotation=str(self.rotation)
+ )
+ fmt = "{code},{exposure},{vertices},{position},{diameter},{rotation}*"
+ return fmt.format(**data)
+
+ def to_primitive(self, units):
+ return Polygon(self.position, self.vertices, self.diameter / 2.0, 0, rotation=math.radians(self.rotation), units=units, level_polarity=self._level_polarity)
+
+
+class AMMoirePrimitive(AMPrimitive):
+ """ Aperture Macro Moire primitive. Code 6.
+
+ The moire primitive is a cross hair centered on concentric rings (annuli).
+ Exposure is always on.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.9:** Moire, primitive code 6.
+
+ Parameters
+ ----------
+ code : int
+ Moire Primitive code. Must be 6.
+
+ position : tuple (<float>, <float>)
+ X and Y coordinates of moire center
+
+ diameter : float
+ outer diameter of outer ring.
+
+ ring_thickness : float
+ thickness of concentric rings.
+
+ gap : float
+ gap between concentric rings.
+
+ max_rings : float
+ maximum number of rings
+
+ crosshair_thickness : float
+ thickness of crosshairs
+
+ crosshair_length : float
+ length of crosshairs
+
+ rotation : float
+ moire rotation about the origin.
+
+ Returns
+ -------
+ MoirePrimitive : :class:`gerber.am_statements.AMMoirePrimitive`
+ An initialized AMMoirePrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(",")
+ code = int(modifiers[0])
+ position = (float(modifiers[1]), float(modifiers[2]))
+ diameter = float(modifiers[3])
+ ring_thickness = float(modifiers[4])
+ gap = float(modifiers[5])
+ max_rings = int(float(modifiers[6]))
+ crosshair_thickness = float(modifiers[7])
+ crosshair_length = float(modifiers[8])
+ rotation = float(modifiers[9])
+ return cls(code, position, diameter, ring_thickness, gap, max_rings, crosshair_thickness, crosshair_length, rotation)
+
+ def __init__(self, code, position, diameter, ring_thickness, gap, max_rings, crosshair_thickness, crosshair_length, rotation):
+ """ Initialize AMoirePrimitive
+ """
+ if code != 6:
+ raise ValueError('MoirePrimitive code is 6')
+ super(AMMoirePrimitive, self).__init__(code, 'on')
+ validate_coordinates(position)
+ self.position = position
+ self.diameter = diameter
+ self.ring_thickness = ring_thickness
+ self.gap = gap
+ self.max_rings = max_rings
+ self.crosshair_thickness = crosshair_thickness
+ self.crosshair_length = crosshair_length
+ self.rotation = rotation
+
+ def to_inch(self):
+ self.position = tuple([inch(x) for x in self.position])
+ self.diameter = inch(self.diameter)
+ self.ring_thickness = inch(self.ring_thickness)
+ self.gap = inch(self.gap)
+ self.crosshair_thickness = inch(self.crosshair_thickness)
+ self.crosshair_length = inch(self.crosshair_length)
+
+ def to_metric(self):
+ self.position = tuple([metric(x) for x in self.position])
+ self.diameter = metric(self.diameter)
+ self.ring_thickness = metric(self.ring_thickness)
+ self.gap = metric(self.gap)
+ self.crosshair_thickness = metric(self.crosshair_thickness)
+ self.crosshair_length = metric(self.crosshair_length)
+
+
+ def to_gerber(self, settings=None):
+ data = dict(
+ code=self.code,
+ position="%.4g,%.4g" % self.position,
+ diameter=self.diameter,
+ ring_thickness=self.ring_thickness,
+ gap=self.gap,
+ max_rings=self.max_rings,
+ crosshair_thickness=self.crosshair_thickness,
+ crosshair_length=self.crosshair_length,
+ rotation=self.rotation
+ )
+ fmt = "{code},{position},{diameter},{ring_thickness},{gap},{max_rings},{crosshair_thickness},{crosshair_length},{rotation}*"
+ return fmt.format(**data)
+
+ def to_primitive(self, units):
+ #raise NotImplementedError()
+ return None
+
+
+class AMThermalPrimitive(AMPrimitive):
+ """ Aperture Macro Thermal primitive. Code 7.
+
+ The thermal primitive is a ring (annulus) interrupted by four gaps.
+ Exposure is always on.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.10:** Thermal, primitive code 7.
+
+ Parameters
+ ----------
+ code : int
+ Thermal Primitive code. Must be 7.
+
+ position : tuple (<float>, <float>)
+ X and Y coordinates of thermal center
+
+ outer_diameter : float
+ outer diameter of thermal.
+
+ inner_diameter : float
+ inner diameter of thermal.
+
+ gap : float
+ gap thickness
+
+ rotation : float
+ thermal rotation about the origin.
+
+ Returns
+ -------
+ ThermalPrimitive : :class:`gerber.am_statements.AMThermalPrimitive`
+ An initialized AMThermalPrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(",")
+ code = int(modifiers[0])
+ position = (float(modifiers[1]), float(modifiers[2]))
+ outer_diameter = float(modifiers[3])
+ inner_diameter = float(modifiers[4])
+ gap = float(modifiers[5])
+ rotation = float(modifiers[6])
+ return cls(code, position, outer_diameter, inner_diameter, gap, rotation)
+
+ def __init__(self, code, position, outer_diameter, inner_diameter, gap, rotation):
+ if code != 7:
+ raise ValueError('ThermalPrimitive code is 7')
+ super(AMThermalPrimitive, self).__init__(code, 'on')
+ validate_coordinates(position)
+ self.position = position
+ self.outer_diameter = outer_diameter
+ self.inner_diameter = inner_diameter
+ self.gap = gap
+ self.rotation = rotation
+
+ def to_inch(self):
+ self.position = tuple([inch(x) for x in self.position])
+ self.outer_diameter = inch(self.outer_diameter)
+ self.inner_diameter = inch(self.inner_diameter)
+ self.gap = inch(self.gap)
+
+ def to_metric(self):
+ self.position = tuple([metric(x) for x in self.position])
+ self.outer_diameter = metric(self.outer_diameter)
+ self.inner_diameter = metric(self.inner_diameter)
+ self.gap = metric(self.gap)
+
+ def to_gerber(self, settings=None):
+ data = dict(
+ code=self.code,
+ position="%.4g,%.4g" % self.position,
+ outer_diameter=self.outer_diameter,
+ inner_diameter=self.inner_diameter,
+ gap=self.gap,
+ rotation=self.rotation
+ )
+ fmt = "{code},{position},{outer_diameter},{inner_diameter},{gap},{rotation}*"
+ return fmt.format(**data)
+
+ def _approximate_arc_cw(self, start_angle, end_angle, radius, center):
+ """
+ Get an arc as a series of points
+
+ Parameters
+ ----------
+ start_angle : The start angle in radians
+ end_angle : The end angle in radians
+ radius`: Radius of the arc
+ center : The center point of the arc (x, y) tuple
+
+ Returns
+ -------
+ array of point tuples
+ """
+
+ # The total sweep
+ sweep_angle = end_angle - start_angle
+ num_steps = 10
+
+ angle_step = sweep_angle / num_steps
+
+ radius = radius
+ center = center
+
+ points = []
+
+ for i in range(num_steps + 1):
+ current_angle = start_angle + (angle_step * i)
+
+ nextx = (center[0] + math.cos(current_angle) * radius)
+ nexty = (center[1] + math.sin(current_angle) * radius)
+
+ points.append((nextx, nexty))
+
+ return points
+
+ def to_primitive(self, units):
+
+ # We start with calculating the top right section, then duplicate it
+
+ inner_radius = self.inner_diameter / 2.0
+ outer_radius = self.outer_diameter / 2.0
+
+ # Calculate the start angle relative to the horizontal axis
+ inner_offset_angle = asin(self.gap / 2.0 / inner_radius)
+ outer_offset_angle = asin(self.gap / 2.0 / outer_radius)
+
+ rotation_rad = math.radians(self.rotation)
+ inner_start_angle = inner_offset_angle + rotation_rad
+ inner_end_angle = math.pi / 2 - inner_offset_angle + rotation_rad
+
+ outer_start_angle = outer_offset_angle + rotation_rad
+ outer_end_angle = math.pi / 2 - outer_offset_angle + rotation_rad
+
+ outlines = []
+ aperture = Circle((0, 0), 0)
+
+ points = (self._approximate_arc_cw(inner_start_angle, inner_end_angle, inner_radius, self.position)
+ + list(reversed(self._approximate_arc_cw(outer_start_angle, outer_end_angle, outer_radius, self.position))))
+ # Add in the last point since outlines should be closed
+ points.append(points[0])
+
+ # There are four outlines at rotated sections
+ for rotation in [0, 90.0, 180.0, 270.0]:
+
+ lines = []
+ prev_point = rotate_point(points[0], rotation, self.position)
+ for point in points[1:]:
+ cur_point = rotate_point(point, rotation, self.position)
+
+ lines.append(Line(prev_point, cur_point, aperture))
+
+ prev_point = cur_point
+
+ outlines.append(Outline(lines, units=units, level_polarity=self._level_polarity))
+
+ return outlines
+
+
+class AMCenterLinePrimitive(AMPrimitive):
+ """ Aperture Macro Center Line primitive. Code 21.
+
+ The center line primitive is a rectangle defined by its width, height, and center point.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.4:** Center Line, primitive code 21.
+
+ Parameters
+ ----------
+ code : int
+ Center Line Primitive code. Must be 21.
+
+ exposure : str
+ 'on' or 'off'
+
+ width : float
+ Width of rectangle
+
+ height : float
+ Height of rectangle
+
+ center : tuple (<float>, <float>)
+ X and Y coordinates of line center
+
+ rotation : float
+ rectangle rotation about its center.
+
+ Returns
+ -------
+ CenterLinePrimitive : :class:`gerber.am_statements.AMCenterLinePrimitive`
+ An initialized AMCenterLinePrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+
+ @classmethod
+ def from_primitive(cls, primitive):
+ width = primitive.width
+ height = primitive.height
+ center = primitive.position
+ rotation = math.degrees(primitive.rotation)
+ return cls(21, 'on', width, height, center, rotation)
+
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(",")
+ code = int(modifiers[0])
+ exposure = 'on' if float(modifiers[1]) == 1 else 'off'
+ width = float(modifiers[2])
+ height = float(modifiers[3])
+ center = (float(modifiers[4]), float(modifiers[5]))
+ rotation = float(modifiers[6])
+ return cls(code, exposure, width, height, center, rotation)
+
+ def __init__(self, code, exposure, width, height, center, rotation):
+ if code != 21:
+ raise ValueError('CenterLinePrimitive code is 21')
+ super(AMCenterLinePrimitive, self).__init__(code, exposure)
+ self.width = width
+ self.height = height
+ validate_coordinates(center)
+ self.center = center
+ self.rotation = rotation
+
+ def to_inch(self):
+ self.center = tuple([inch(x) for x in self.center])
+ self.width = inch(self.width)
+ self.height = inch(self.height)
+
+ def to_metric(self):
+ self.center = tuple([metric(x) for x in self.center])
+ self.width = metric(self.width)
+ self.height = metric(self.height)
+
+ def to_gerber(self, settings=None):
+ data = dict(
+ code=self.code,
+ exposure = '1' if self.exposure == 'on' else '0',
+ width = self.width,
+ height = self.height,
+ center="%.4g,%.4g" % self.center,
+ rotation=self.rotation
+ )
+ fmt = "{code},{exposure},{width},{height},{center},{rotation}*"
+ return fmt.format(**data)
+
+ def to_primitive(self, units):
+
+ x = self.center[0]
+ y = self.center[1]
+ half_width = self.width / 2.0
+ half_height = self.height / 2.0
+
+ points = []
+ points.append((x - half_width, y + half_height))
+ points.append((x - half_width, y - half_height))
+ points.append((x + half_width, y - half_height))
+ points.append((x + half_width, y + half_height))
+
+ aperture = Circle((0, 0), 0)
+
+ lines = []
+ prev_point = rotate_point(points[3], self.rotation, self.center)
+ for point in points:
+ cur_point = rotate_point(point, self.rotation, self.center)
+
+ lines.append(Line(prev_point, cur_point, aperture))
+
+ return Outline(lines, units=units, level_polarity=self._level_polarity)
+
+
+class AMLowerLeftLinePrimitive(AMPrimitive):
+ """ Aperture Macro Lower Left Line primitive. Code 22.
+
+ The lower left line primitive is a rectangle defined by its width, height, and the lower left point.
+
+ .. seealso::
+ `The Gerber File Format Specification <http://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf>`_
+ **Section 4.12.3.5:** Lower Left Line, primitive code 22.
+
+ Parameters
+ ----------
+ code : int
+ Center Line Primitive code. Must be 22.
+
+ exposure : str
+ 'on' or 'off'
+
+ width : float
+ Width of rectangle
+
+ height : float
+ Height of rectangle
+
+ lower_left : tuple (<float>, <float>)
+ X and Y coordinates of lower left corner
+
+ rotation : float
+ rectangle rotation about its origin.
+
+ Returns
+ -------
+ LowerLeftLinePrimitive : :class:`gerber.am_statements.AMLowerLeftLinePrimitive`
+ An initialized AMLowerLeftLinePrimitive
+
+ Raises
+ ------
+ ValueError, TypeError
+ """
+ @classmethod
+ def from_gerber(cls, primitive):
+ modifiers = primitive.strip(' *').split(",")
+ code = int(modifiers[0])
+ exposure = 'on' if float(modifiers[1]) == 1 else 'off'
+ width = float(modifiers[2])
+ height = float(modifiers[3])
+ lower_left = (float(modifiers[4]), float(modifiers[5]))
+ rotation = float(modifiers[6])
+ return cls(code, exposure, width, height, lower_left, rotation)
+
+ def __init__(self, code, exposure, width, height, lower_left, rotation):
+ if code != 22:
+ raise ValueError('LowerLeftLinePrimitive code is 22')
+ super (AMLowerLeftLinePrimitive, self).__init__(code, exposure)
+ self.width = width
+ self.height = height
+ validate_coordinates(lower_left)
+ self.lower_left = lower_left
+ self.rotation = rotation
+
+ def to_inch(self):
+ self.lower_left = tuple([inch(x) for x in self.lower_left])
+ self.width = inch(self.width)
+ self.height = inch(self.height)
+
+ def to_metric(self):
+ self.lower_left = tuple([metric(x) for x in self.lower_left])
+ self.width = metric(self.width)
+ self.height = metric(self.height)
+
+ def to_gerber(self, settings=None):
+ data = dict(
+ code=self.code,
+ exposure = '1' if self.exposure == 'on' else '0',
+ width = self.width,
+ height = self.height,
+ lower_left="%.4g,%.4g" % self.lower_left,
+ rotation=self.rotation
+ )
+ fmt = "{code},{exposure},{width},{height},{lower_left},{rotation}*"
+ return fmt.format(**data)
+
+
+class AMUnsupportPrimitive(AMPrimitive):
+ @classmethod
+ def from_gerber(cls, primitive):
+ return cls(primitive)
+
+ def __init__(self, primitive):
+ super(AMUnsupportPrimitive, self).__init__(9999)
+ self.primitive = primitive
+
+ def to_inch(self):
+ pass
+
+ def to_metric(self):
+ pass
+
+ def to_gerber(self, settings=None):
+ return self.primitive
diff --git a/gerber/cam.py b/gerber/cam.py
new file mode 100644
index 0000000..4f20283
--- /dev/null
+++ b/gerber/cam.py
@@ -0,0 +1,286 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+CAM File
+============
+**AM file classes**
+
+This module provides common base classes for Excellon/Gerber CNC files
+"""
+
+
+class FileSettings(object):
+ """ CAM File Settings
+
+ Provides a common representation of gerber/excellon file settings
+
+ Parameters
+ ----------
+ notation: string
+ notation format. either 'absolute' or 'incremental'
+
+ units : string
+ Measurement units. 'inch' or 'metric'
+
+ zero_suppression: string
+ 'leading' to suppress leading zeros, 'trailing' to suppress trailing zeros.
+ This is the convention used in Gerber files.
+
+ format : tuple (int, int)
+ Decimal format
+
+ zeros : string
+ 'leading' to include leading zeros, 'trailing to include trailing zeros.
+ This is the convention used in Excellon files
+
+ Notes
+ -----
+ Either `zeros` or `zero_suppression` should be specified, there is no need to
+ specify both. `zero_suppression` will take on the opposite value of `zeros`
+ and vice versa
+ """
+
+ def __init__(self, notation='absolute', units='inch',
+ zero_suppression=None, format=(2, 5), zeros=None,
+ angle_units='degrees'):
+ if notation not in ['absolute', 'incremental']:
+ raise ValueError('Notation must be either absolute or incremental')
+ self.notation = notation
+
+ if units not in ['inch', 'metric']:
+ raise ValueError('Units must be either inch or metric')
+ self.units = units
+
+ if zero_suppression is None and zeros is None:
+ self.zero_suppression = 'trailing'
+
+ elif zero_suppression == zeros:
+ raise ValueError('Zeros and Zero Suppression must be different. \
+ Best practice is to specify only one.')
+
+ elif zero_suppression is not None:
+ if zero_suppression not in ['leading', 'trailing']:
+ # This is a common problem in Eagle files, so just suppress it
+ self.zero_suppression = 'leading'
+ else:
+ self.zero_suppression = zero_suppression
+
+ elif zeros is not None:
+ if zeros not in ['leading', 'trailing']:
+ raise ValueError('Zeros must be either leading or trailling')
+ self.zeros = zeros
+
+ if len(format) != 2:
+ raise ValueError('Format must be a tuple(n=2) of integers')
+ self.format = format
+
+ if angle_units not in ('degrees', 'radians'):
+ raise ValueError('Angle units may be degrees or radians')
+ self.angle_units = angle_units
+
+ @property
+ def zero_suppression(self):
+ return self._zero_suppression
+
+ @zero_suppression.setter
+ def zero_suppression(self, value):
+ self._zero_suppression = value
+ self._zeros = 'leading' if value == 'trailing' else 'trailing'
+
+ @property
+ def zeros(self):
+ return self._zeros
+
+ @zeros.setter
+ def zeros(self, value):
+
+ self._zeros = value
+ self._zero_suppression = 'leading' if value == 'trailing' else 'trailing'
+
+ def __getitem__(self, key):
+ if key == 'notation':
+ return self.notation
+ elif key == 'units':
+ return self.units
+ elif key == 'zero_suppression':
+ return self.zero_suppression
+ elif key == 'zeros':
+ return self.zeros
+ elif key == 'format':
+ return self.format
+ elif key == 'angle_units':
+ return self.angle_units
+ else:
+ raise KeyError()
+
+ def __setitem__(self, key, value):
+ if key == 'notation':
+ if value not in ['absolute', 'incremental']:
+ raise ValueError('Notation must be either \
+ absolute or incremental')
+ self.notation = value
+ elif key == 'units':
+ if value not in ['inch', 'metric']:
+ raise ValueError('Units must be either inch or metric')
+ self.units = value
+
+ elif key == 'zero_suppression':
+ if value not in ['leading', 'trailing']:
+ raise ValueError('Zero suppression must be either leading or \
+ trailling')
+ self.zero_suppression = value
+
+ elif key == 'zeros':
+ if value not in ['leading', 'trailing']:
+ raise ValueError('Zeros must be either leading or trailling')
+ self.zeros = value
+
+ elif key == 'format':
+ if len(value) != 2:
+ raise ValueError('Format must be a tuple(n=2) of integers')
+ self.format = value
+
+ elif key == 'angle_units':
+ if value not in ('degrees', 'radians'):
+ raise ValueError('Angle units may be degrees or radians')
+ self.angle_units = value
+
+ else:
+ raise KeyError('%s is not a valid key' % key)
+
+ def __eq__(self, other):
+ return (self.notation == other.notation and
+ self.units == other.units and
+ self.zero_suppression == other.zero_suppression and
+ self.format == other.format and
+ self.angle_units == other.angle_units)
+
+ def __str__(self):
+ return ('<Settings: %s %s %s %s %s>' %
+ (self.units, self.notation, self.zero_suppression, self.format, self.angle_units))
+
+
+class CamFile(object):
+ """ Base class for Gerber/Excellon files.
+
+ Provides a common set of settings parameters.
+
+ Parameters
+ ----------
+ settings : FileSettings
+ The current file configuration.
+
+ primitives : iterable
+ List of primitives in the file.
+
+ filename : string
+ Name of the file that this CamFile represents.
+
+ layer_name : string
+ Name of the PCB layer that the file represents
+
+ Attributes
+ ----------
+ settings : FileSettings
+ File settings as a FileSettings object
+
+ notation : string
+ File notation setting. May be either 'absolute' or 'incremental'
+
+ units : string
+ File units setting. May be 'inch' or 'metric'
+
+ zero_suppression : string
+ File zero-suppression setting. May be either 'leading' or 'trailling'
+
+ format : tuple (<int>, <int>)
+ File decimal representation format as a tuple of (integer digits,
+ decimal digits)
+ """
+
+ def __init__(self, statements=None, settings=None, primitives=None,
+ filename=None, layer_name=None):
+ if settings is not None:
+ self.notation = settings['notation']
+ self.units = settings['units']
+ self.zero_suppression = settings['zero_suppression']
+ self.zeros = settings['zeros']
+ self.format = settings['format']
+ else:
+ self.notation = 'absolute'
+ self.units = 'inch'
+ self.zero_suppression = 'trailing'
+ self.zeros = 'leading'
+ self.format = (2, 5)
+ self.statements = statements if statements is not None else []
+ if primitives is not None:
+ self.primitives = primitives
+ self.filename = filename
+ self.layer_name = layer_name
+
+ @property
+ def settings(self):
+ """ File settings
+
+ Returns
+ -------
+ settings : FileSettings (dict-like)
+ A FileSettings object with the specified configuration.
+ """
+ return FileSettings(self.notation, self.units, self.zero_suppression,
+ self.format)
+
+ @property
+ def bounds(self):
+ """ File boundaries
+ """
+ pass
+
+ @property
+ def bounding_box(self):
+ pass
+
+ def to_inch(self):
+ pass
+
+ def to_metric(self):
+ pass
+
+ def render(self, ctx=None, invert=False, filename=None):
+ """ Generate image of layer.
+
+ Parameters
+ ----------
+ ctx : :class:`GerberContext`
+ GerberContext subclass used for rendering the image
+
+ filename : string <optional>
+ If provided, save the rendered image to `filename`
+ """
+ if ctx is None:
+ from .render import GerberCairoContext
+ ctx = GerberCairoContext()
+ ctx.set_bounds(self.bounding_box)
+ ctx.paint_background()
+ ctx.invert = invert
+ ctx.new_render_layer()
+ for p in self.primitives:
+ ctx.render(p)
+ ctx.flatten()
+
+ if filename is not None:
+ ctx.dump(filename)
diff --git a/gerber/common.py b/gerber/common.py
new file mode 100644
index 0000000..f496809
--- /dev/null
+++ b/gerber/common.py
@@ -0,0 +1,71 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from . import rs274x
+from . import excellon
+from . import ipc356
+from .exceptions import ParseError
+from .utils import detect_file_format
+
+
+def read(filename):
+ """ Read a gerber or excellon file and return a representative object.
+
+ Parameters
+ ----------
+ filename : string
+ Filename of the file to read.
+
+ Returns
+ -------
+ file : CncFile subclass
+ CncFile object representing the file, either GerberFile, ExcellonFile,
+ or IPCNetlist. Returns None if file is not of the proper type.
+ """
+ with open(filename, 'rU') as f:
+ data = f.read()
+ return loads(data, filename)
+
+
+def loads(data, filename=None):
+ """ Read gerber or excellon file contents from a string and return a
+ representative object.
+
+ Parameters
+ ----------
+ data : string
+ Source file contents as a string.
+
+ filename : string, optional
+ String containing the filename of the data source.
+
+ Returns
+ -------
+ file : CncFile subclass
+ CncFile object representing the data, either GerberFile, ExcellonFile,
+ or IPCNetlist. Returns None if data is not of the proper type.
+ """
+
+ fmt = detect_file_format(data)
+ if fmt == 'rs274x':
+ return rs274x.loads(data, filename=filename)
+ elif fmt == 'excellon':
+ return excellon.loads(data, filename=filename)
+ elif fmt == 'ipc_d_356':
+ return ipc356.loads(data, filename=filename)
+ else:
+ raise ParseError('Unable to detect file format')
diff --git a/gerber/excellon.py b/gerber/excellon.py
new file mode 100755
index 0000000..5ab062a
--- /dev/null
+++ b/gerber/excellon.py
@@ -0,0 +1,904 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Excellon File module
+====================
+**Excellon file classes**
+
+This module provides Excellon file classes and parsing utilities
+"""
+
+import math
+import operator
+
+from .cam import CamFile, FileSettings
+from .excellon_statements import *
+from .excellon_tool import ExcellonToolDefinitionParser
+from .primitives import Drill, Slot
+from .utils import inch, metric
+
+
+try:
+ from cStringIO import StringIO
+except(ImportError):
+ from io import StringIO
+
+
+
+def read(filename):
+ """ Read data from filename and return an ExcellonFile
+ Parameters
+ ----------
+ filename : string
+ Filename of file to parse
+
+ Returns
+ -------
+ file : :class:`gerber.excellon.ExcellonFile`
+ An ExcellonFile created from the specified file.
+
+ """
+ # File object should use settings from source file by default.
+ with open(filename, 'rU') as f:
+ data = f.read()
+ settings = FileSettings(**detect_excellon_format(data))
+ return ExcellonParser(settings).parse(filename)
+
+def loads(data, filename=None, settings=None, tools=None):
+ """ Read data from string and return an ExcellonFile
+ Parameters
+ ----------
+ data : string
+ string containing Excellon file contents
+
+ filename : string, optional
+ string containing the filename of the data source
+
+ tools: dict (optional)
+ externally defined tools
+
+ Returns
+ -------
+ file : :class:`gerber.excellon.ExcellonFile`
+ An ExcellonFile created from the specified file.
+
+ """
+ # File object should use settings from source file by default.
+ if not settings:
+ settings = FileSettings(**detect_excellon_format(data))
+ return ExcellonParser(settings, tools).parse_raw(data, filename)
+
+
+class DrillHit(object):
+ """Drill feature that is a single drill hole.
+
+ Attributes
+ ----------
+ tool : ExcellonTool
+ Tool to drill the hole. Defines the size of the hole that is generated.
+ position : tuple(float, float)
+ Center position of the drill.
+
+ """
+ def __init__(self, tool, position):
+ self.tool = tool
+ self.position = position
+
+ def to_inch(self):
+ if self.tool.settings.units == 'metric':
+ self.tool.to_inch()
+ self.position = tuple(map(inch, self.position))
+
+ def to_metric(self):
+ if self.tool.settings.units == 'inch':
+ self.tool.to_metric()
+ self.position = tuple(map(metric, self.position))
+
+ @property
+ def bounding_box(self):
+ position = self.position
+ radius = self.tool.diameter / 2.
+
+ min_x = position[0] - radius
+ max_x = position[0] + radius
+ min_y = position[1] - radius
+ max_y = position[1] + radius
+ return ((min_x, max_x), (min_y, max_y))
+
+ def offset(self, x_offset=0, y_offset=0):
+ self.position = tuple(map(operator.add, self.position, (x_offset, y_offset)))
+
+ def __str__(self):
+ return 'Hit (%f, %f) {%s}' % (self.position[0], self.position[1], self.tool)
+
+class DrillSlot(object):
+ """
+ A slot is created between two points. The way the slot is created depends on the statement used to create it
+ """
+
+ TYPE_ROUT = 1
+ TYPE_G85 = 2
+
+ def __init__(self, tool, start, end, slot_type):
+ self.tool = tool
+ self.start = start
+ self.end = end
+ self.slot_type = slot_type
+
+ def to_inch(self):
+ if self.tool.settings.units == 'metric':
+ self.tool.to_inch()
+ self.start = tuple(map(inch, self.start))
+ self.end = tuple(map(inch, self.end))
+
+ def to_metric(self):
+ if self.tool.settings.units == 'inch':
+ self.tool.to_metric()
+ self.start = tuple(map(metric, self.start))
+ self.end = tuple(map(metric, self.end))
+
+ @property
+ def bounding_box(self):
+ start = self.start
+ end = self.end
+ radius = self.tool.diameter / 2.
+ min_x = min(start[0], end[0]) - radius
+ max_x = max(start[0], end[0]) + radius
+ min_y = min(start[1], end[1]) - radius
+ max_y = max(start[1], end[1]) + radius
+ return ((min_x, max_x), (min_y, max_y))
+
+ def offset(self, x_offset=0, y_offset=0):
+ self.start = tuple(map(operator.add, self.start, (x_offset, y_offset)))
+ self.end = tuple(map(operator.add, self.end, (x_offset, y_offset)))
+
+
+class ExcellonFile(CamFile):
+ """ A class representing a single excellon file
+
+ The ExcellonFile class represents a single excellon file.
+
+ http://www.excellon.com/manuals/program.htm
+ (archived version at https://web.archive.org/web/20150920001043/http://www.excellon.com/manuals/program.htm)
+
+ Parameters
+ ----------
+ tools : list
+ list of gerber file statements
+
+ hits : list of tuples
+ list of drill hits as (<Tool>, (x, y))
+
+ settings : dict
+ Dictionary of gerber file settings
+
+ filename : string
+ Filename of the source gerber file
+
+ Attributes
+ ----------
+ units : string
+ either 'inch' or 'metric'.
+
+ """
+
+ def __init__(self, statements, tools, hits, settings, filename=None):
+ super(ExcellonFile, self).__init__(statements=statements,
+ settings=settings,
+ filename=filename)
+ self.tools = tools
+ self.hits = hits
+
+ @property
+ def primitives(self):
+ """
+ Gets the primitives. Note that unlike Gerber, this generates new objects
+ """
+ primitives = []
+ for hit in self.hits:
+ if isinstance(hit, DrillHit):
+ primitives.append(Drill(hit.position, hit.tool.diameter,
+ units=self.settings.units))
+ elif isinstance(hit, DrillSlot):
+ primitives.append(Slot(hit.start, hit.end, hit.tool.diameter,
+ units=self.settings.units))
+ else:
+ raise ValueError('Unknown hit type')
+ return primitives
+
+ @property
+ def bounding_box(self):
+ xmin = ymin = 100000000000
+ xmax = ymax = -100000000000
+ for hit in self.hits:
+ bbox = hit.bounding_box
+ xmin = min(bbox[0][0], xmin)
+ xmax = max(bbox[0][1], xmax)
+ ymin = min(bbox[1][0], ymin)
+ ymax = max(bbox[1][1], ymax)
+ return ((xmin, xmax), (ymin, ymax))
+
+ def report(self, filename=None):
+ """ Print or save drill report
+ """
+ if self.settings.units == 'inch':
+ toolfmt = ' T{:0>2d} {:%d.%df} {: >3d} {:f}in.\n' % self.settings.format
+ else:
+ toolfmt = ' T{:0>2d} {:%d.%df} {: >3d} {:f}mm\n' % self.settings.format
+ rprt = '=====================\nExcellon Drill Report\n=====================\n'
+ if self.filename is not None:
+ rprt += 'NC Drill File: %s\n\n' % self.filename
+ rprt += 'Drill File Info:\n----------------\n'
+ rprt += (' Data Mode %s\n' % 'Absolute'
+ if self.settings.notation == 'absolute' else 'Incremental')
+ rprt += (' Units %s\n' % 'Inches'
+ if self.settings.units == 'inch' else 'Millimeters')
+ rprt += '\nTool List:\n----------\n\n'
+ rprt += ' Code Size Hits Path Length\n'
+ rprt += ' --------------------------------------\n'
+ for tool in iter(self.tools.values()):
+ rprt += toolfmt.format(tool.number, tool.diameter,
+ tool.hit_count, self.path_length(tool.number))
+ if filename is not None:
+ with open(filename, 'w') as f:
+ f.write(rprt)
+ return rprt
+
+ def write(self, filename=None):
+ filename = filename if filename is not None else self.filename
+ with open(filename, 'w') as f:
+
+ # Copy the header verbatim
+ for statement in self.statements:
+ if not isinstance(statement, ToolSelectionStmt):
+ f.write(statement.to_excellon(self.settings) + '\n')
+ else:
+ break
+
+ # Write out coordinates for drill hits by tool
+ for tool in iter(self.tools.values()):
+ f.write(ToolSelectionStmt(tool.number).to_excellon(self.settings) + '\n')
+ for hit in self.hits:
+ if hit.tool.number == tool.number:
+ f.write(CoordinateStmt(
+ *hit.position).to_excellon(self.settings) + '\n')
+ f.write(EndOfProgramStmt().to_excellon() + '\n')
+
+ def to_inch(self):
+ """
+ Convert units to inches
+ """
+ if self.units != 'inch':
+ for statement in self.statements:
+ statement.to_inch()
+ for tool in iter(self.tools.values()):
+ tool.to_inch()
+ #for primitive in self.primitives:
+ # primitive.to_inch()
+ #for hit in self.hits:
+ # hit.to_inch()
+ self.units = 'inch'
+
+ def to_metric(self):
+ """ Convert units to metric
+ """
+ if self.units != 'metric':
+ for statement in self.statements:
+ statement.to_metric()
+ for tool in iter(self.tools.values()):
+ tool.to_metric()
+ #for primitive in self.primitives:
+ # print("Converting to metric: {}".format(primitive))
+ # primitive.to_metric()
+ # print(primitive)
+ for hit in self.hits:
+ hit.to_metric()
+ self.units = 'metric'
+
+ def offset(self, x_offset=0, y_offset=0):
+ for statement in self.statements:
+ statement.offset(x_offset, y_offset)
+ for primitive in self.primitives:
+ primitive.offset(x_offset, y_offset)
+ for hit in self. hits:
+ hit.offset(x_offset, y_offset)
+
+ def path_length(self, tool_number=None):
+ """ Return the path length for a given tool
+ """
+ lengths = {}
+ positions = {}
+ for hit in self.hits:
+ tool = hit.tool
+ num = tool.number
+ positions[num] = ((0, 0) if positions.get(num) is None
+ else positions[num])
+ lengths[num] = 0.0 if lengths.get(num) is None else lengths[num]
+ lengths[num] = lengths[
+ num] + math.hypot(*tuple(map(operator.sub, positions[num], hit.position)))
+ positions[num] = hit.position
+
+ if tool_number is None:
+ return lengths
+ else:
+ return lengths.get(tool_number)
+
+ def hit_count(self, tool_number=None):
+ counts = {}
+ for tool in iter(self.tools.values()):
+ counts[tool.number] = tool.hit_count
+ if tool_number is None:
+ return counts
+ else:
+ return counts.get(tool_number)
+
+ def update_tool(self, tool_number, **kwargs):
+ """ Change parameters of a tool
+ """
+ if kwargs.get('feed_rate') is not None:
+ self.tools[tool_number].feed_rate = kwargs.get('feed_rate')
+ if kwargs.get('retract_rate') is not None:
+ self.tools[tool_number].retract_rate = kwargs.get('retract_rate')
+ if kwargs.get('rpm') is not None:
+ self.tools[tool_number].rpm = kwargs.get('rpm')
+ if kwargs.get('diameter') is not None:
+ self.tools[tool_number].diameter = kwargs.get('diameter')
+ if kwargs.get('max_hit_count') is not None:
+ self.tools[tool_number].max_hit_count = kwargs.get('max_hit_count')
+ if kwargs.get('depth_offset') is not None:
+ self.tools[tool_number].depth_offset = kwargs.get('depth_offset')
+ # Update drill hits
+ newtool = self.tools[tool_number]
+ for hit in self.hits:
+ if hit.tool.number == newtool.number:
+ hit.tool = newtool
+
+
+class ExcellonParser(object):
+ """ Excellon File Parser
+
+ Parameters
+ ----------
+ settings : FileSettings or dict-like
+ Excellon file settings to use when interpreting the excellon file.
+ """
+ def __init__(self, settings=None, ext_tools=None):
+ self.notation = 'absolute'
+ self.units = 'inch'
+ self.zeros = 'leading'
+ self.format = (2, 4)
+ self.state = 'INIT'
+ self.statements = []
+ self.tools = {}
+ self.ext_tools = ext_tools or {}
+ self.comment_tools = {}
+ self.hits = []
+ self.active_tool = None
+ self.pos = [0., 0.]
+ self.drill_down = False
+ self._previous_line = ''
+ # Default for plated is None, which means we don't know
+ self.plated = ExcellonTool.PLATED_UNKNOWN
+ if settings is not None:
+ self.units = settings.units
+ self.zeros = settings.zeros
+ self.notation = settings.notation
+ self.format = settings.format
+
+ @property
+ def coordinates(self):
+ return [(stmt.x, stmt.y) for stmt in self.statements if isinstance(stmt, CoordinateStmt)]
+
+ @property
+ def bounds(self):
+ xmin = ymin = 100000000000
+ xmax = ymax = -100000000000
+ for x, y in self.coordinates:
+ if x is not None:
+ xmin = x if x < xmin else xmin
+ xmax = x if x > xmax else xmax
+ if y is not None:
+ ymin = y if y < ymin else ymin
+ ymax = y if y > ymax else ymax
+ return ((xmin, xmax), (ymin, ymax))
+
+ @property
+ def hole_sizes(self):
+ return [stmt.diameter for stmt in self.statements if isinstance(stmt, ExcellonTool)]
+
+ @property
+ def hole_count(self):
+ return len(self.hits)
+
+ def parse(self, filename):
+ with open(filename, 'rU') as f:
+ data = f.read()
+ return self.parse_raw(data, filename)
+
+ def parse_raw(self, data, filename=None):
+ for line in StringIO(data):
+ self._parse_line(line.strip())
+ for stmt in self.statements:
+ stmt.units = self.units
+ return ExcellonFile(self.statements, self.tools, self.hits,
+ self._settings(), filename)
+
+ def _parse_line(self, line):
+ # skip empty lines
+ # Prepend previous line's data...
+ line = '{}{}'.format(self._previous_line, line)
+ self._previous_line = ''
+
+ # Skip empty lines
+ if not line.strip():
+ return
+
+ if line[0] == ';':
+ comment_stmt = CommentStmt.from_excellon(line)
+ self.statements.append(comment_stmt)
+
+ # get format from altium comment
+ if "FILE_FORMAT" in comment_stmt.comment:
+ detected_format = tuple(
+ [int(x) for x in comment_stmt.comment.split('=')[1].split(":")])
+ if detected_format:
+ self.format = detected_format
+
+ if "TYPE=PLATED" in comment_stmt.comment:
+ self.plated = ExcellonTool.PLATED_YES
+
+ if "TYPE=NON_PLATED" in comment_stmt.comment:
+ self.plated = ExcellonTool.PLATED_NO
+
+ if "HEADER:" in comment_stmt.comment:
+ self.state = "HEADER"
+
+ if " Holesize " in comment_stmt.comment:
+ self.state = "HEADER"
+
+ # Parse this as a hole definition
+ tools = ExcellonToolDefinitionParser(self._settings()).parse_raw(comment_stmt.comment)
+ if len(tools) == 1:
+ tool = tools[tools.keys()[0]]
+ self._add_comment_tool(tool)
+
+ elif line[:3] == 'M48':
+ self.statements.append(HeaderBeginStmt())
+ self.state = 'HEADER'
+
+ elif line[0] == '%':
+ self.statements.append(RewindStopStmt())
+ if self.state == 'HEADER':
+ self.state = 'DRILL'
+ elif self.state == 'INIT':
+ self.state = 'HEADER'
+
+ elif line[:3] == 'M00' and self.state == 'DRILL':
+ if self.active_tool:
+ cur_tool_number = self.active_tool.number
+ next_tool = self._get_tool(cur_tool_number + 1)
+
+ self.statements.append(NextToolSelectionStmt(self.active_tool, next_tool))
+ self.active_tool = next_tool
+ else:
+ raise Exception('Invalid state exception')
+
+ elif line[:3] == 'M95':
+ self.statements.append(HeaderEndStmt())
+ if self.state == 'HEADER':
+ self.state = 'DRILL'
+
+ elif line[:3] == 'M15':
+ self.statements.append(ZAxisRoutPositionStmt())
+ self.drill_down = True
+
+ elif line[:3] == 'M16':
+ self.statements.append(RetractWithClampingStmt())
+ self.drill_down = False
+
+ elif line[:3] == 'M17':
+ self.statements.append(RetractWithoutClampingStmt())
+ self.drill_down = False
+
+ elif line[:3] == 'M30':
+ stmt = EndOfProgramStmt.from_excellon(line, self._settings())
+ self.statements.append(stmt)
+
+ elif line[:3] == 'G00':
+ # Coordinates may be on the next line
+ if line.strip() == 'G00':
+ self._previous_line = line
+ return
+
+ self.statements.append(RouteModeStmt())
+ self.state = 'ROUT'
+
+ stmt = CoordinateStmt.from_excellon(line[3:], self._settings())
+ stmt.mode = self.state
+
+ x = stmt.x
+ y = stmt.y
+ self.statements.append(stmt)
+ if self.notation == 'absolute':
+ if x is not None:
+ self.pos[0] = x
+ if y is not None:
+ self.pos[1] = y
+ else:
+ if x is not None:
+ self.pos[0] += x
+ if y is not None:
+ self.pos[1] += y
+
+ elif line[:3] == 'G01':
+
+ # Coordinates might be on the next line...
+ if line.strip() == 'G01':
+ self._previous_line = line
+ return
+
+ self.statements.append(RouteModeStmt())
+ self.state = 'LINEAR'
+
+ stmt = CoordinateStmt.from_excellon(line[3:], self._settings())
+ stmt.mode = self.state
+
+ # The start position is where we were before the rout command
+ start = (self.pos[0], self.pos[1])
+
+ x = stmt.x
+ y = stmt.y
+ self.statements.append(stmt)
+ if self.notation == 'absolute':
+ if x is not None:
+ self.pos[0] = x
+ if y is not None:
+ self.pos[1] = y
+ else:
+ if x is not None:
+ self.pos[0] += x
+ if y is not None:
+ self.pos[1] += y
+
+ # Our ending position
+ end = (self.pos[0], self.pos[1])
+
+ if self.drill_down:
+ if not self.active_tool:
+ self.active_tool = self._get_tool(1)
+
+ self.hits.append(DrillSlot(self.active_tool, start, end, DrillSlot.TYPE_ROUT))
+ self.active_tool._hit()
+
+ elif line[:3] == 'G05':
+ self.statements.append(DrillModeStmt())
+ self.drill_down = False
+ self.state = 'DRILL'
+
+ elif 'INCH' in line or 'METRIC' in line:
+ stmt = UnitStmt.from_excellon(line)
+ self.units = stmt.units
+ self.zeros = stmt.zeros
+ if stmt.format:
+ self.format = stmt.format
+ self.statements.append(stmt)
+
+ elif line[:3] == 'M71' or line[:3] == 'M72':
+ stmt = MeasuringModeStmt.from_excellon(line)
+ self.units = stmt.units
+ self.statements.append(stmt)
+
+ elif line[:3] == 'ICI':
+ stmt = IncrementalModeStmt.from_excellon(line)
+ self.notation = 'incremental' if stmt.mode == 'on' else 'absolute'
+ self.statements.append(stmt)
+
+ elif line[:3] == 'VER':
+ stmt = VersionStmt.from_excellon(line)
+ self.statements.append(stmt)
+
+ elif line[:4] == 'FMAT':
+ stmt = FormatStmt.from_excellon(line)
+ self.statements.append(stmt)
+ self.format = stmt.format_tuple
+
+ elif line[:3] == 'G40':
+ self.statements.append(CutterCompensationOffStmt())
+
+ elif line[:3] == 'G41':
+ self.statements.append(CutterCompensationLeftStmt())
+
+ elif line[:3] == 'G42':
+ self.statements.append(CutterCompensationRightStmt())
+
+ elif line[:3] == 'G90':
+ self.statements.append(AbsoluteModeStmt())
+ self.notation = 'absolute'
+
+ elif line[0] == 'F':
+ infeed_rate_stmt = ZAxisInfeedRateStmt.from_excellon(line)
+ self.statements.append(infeed_rate_stmt)
+
+ elif line[0] == 'T' and self.state == 'HEADER':
+ if not ',OFF' in line and not ',ON' in line:
+ tool = ExcellonTool.from_excellon(line, self._settings(), None, self.plated)
+ self._merge_properties(tool)
+ self.tools[tool.number] = tool
+ self.statements.append(tool)
+ else:
+ self.statements.append(UnknownStmt.from_excellon(line))
+
+ elif line[0] == 'T' and self.state != 'HEADER':
+ stmt = ToolSelectionStmt.from_excellon(line)
+ self.statements.append(stmt)
+
+ # T0 is used as END marker, just ignore
+ if stmt.tool != 0:
+ tool = self._get_tool(stmt.tool)
+
+ if not tool:
+ # FIXME: for weird files with no tools defined, original calc from gerb
+ if self._settings().units == "inch":
+ diameter = (16 + 8 * stmt.tool) / 1000.0
+ else:
+ diameter = metric((16 + 8 * stmt.tool) / 1000.0)
+
+ tool = ExcellonTool(
+ self._settings(), number=stmt.tool, diameter=diameter)
+ self.tools[tool.number] = tool
+
+ # FIXME: need to add this tool definition inside header to
+ # make sure it is properly written
+ for i, s in enumerate(self.statements):
+ if isinstance(s, ToolSelectionStmt) or isinstance(s, ExcellonTool):
+ self.statements.insert(i, tool)
+ break
+
+ self.active_tool = tool
+
+ elif line[0] == 'R' and self.state != 'HEADER':
+ stmt = RepeatHoleStmt.from_excellon(line, self._settings())
+ self.statements.append(stmt)
+ for i in range(stmt.count):
+ self.pos[0] += stmt.xdelta if stmt.xdelta is not None else 0
+ self.pos[1] += stmt.ydelta if stmt.ydelta is not None else 0
+ self.hits.append(DrillHit(self.active_tool, tuple(self.pos)))
+ self.active_tool._hit()
+
+ elif line[0] in ['X', 'Y']:
+ if 'G85' in line:
+ stmt = SlotStmt.from_excellon(line, self._settings())
+
+ # I don't know if this is actually correct, but it makes sense
+ # that this is where the tool would end
+ x = stmt.x_end
+ y = stmt.y_end
+
+ self.statements.append(stmt)
+
+ if self.notation == 'absolute':
+ if x is not None:
+ self.pos[0] = x
+ if y is not None:
+ self.pos[1] = y
+ else:
+ if x is not None:
+ self.pos[0] += x
+ if y is not None:
+ self.pos[1] += y
+
+ if self.state == 'DRILL' or self.state == 'HEADER':
+ if not self.active_tool:
+ self.active_tool = self._get_tool(1)
+
+ self.hits.append(DrillSlot(self.active_tool, (stmt.x_start, stmt.y_start), (stmt.x_end, stmt.y_end), DrillSlot.TYPE_G85))
+ self.active_tool._hit()
+ else:
+ stmt = CoordinateStmt.from_excellon(line, self._settings())
+
+ # We need this in case we are in rout mode
+ start = (self.pos[0], self.pos[1])
+
+ x = stmt.x
+ y = stmt.y
+ self.statements.append(stmt)
+ if self.notation == 'absolute':
+ if x is not None:
+ self.pos[0] = x
+ if y is not None:
+ self.pos[1] = y
+ else:
+ if x is not None:
+ self.pos[0] += x
+ if y is not None:
+ self.pos[1] += y
+
+ if self.state == 'LINEAR' and self.drill_down:
+ if not self.active_tool:
+ self.active_tool = self._get_tool(1)
+
+ self.hits.append(DrillSlot(self.active_tool, start, tuple(self.pos), DrillSlot.TYPE_ROUT))
+
+ elif self.state == 'DRILL' or self.state == 'HEADER':
+ # Yes, drills in the header doesn't follow the specification, but it there are many
+ # files like this
+ if not self.active_tool:
+ self.active_tool = self._get_tool(1)
+
+ self.hits.append(DrillHit(self.active_tool, tuple(self.pos)))
+ self.active_tool._hit()
+
+ else:
+ self.statements.append(UnknownStmt.from_excellon(line))
+
+ def _settings(self):
+ return FileSettings(units=self.units, format=self.format,
+ zeros=self.zeros, notation=self.notation)
+
+ def _add_comment_tool(self, tool):
+ """
+ Add a tool that was defined in the comments to this file.
+
+ If we have already found this tool, then we will merge this comment tool definition into
+ the information for the tool
+ """
+
+ existing = self.tools.get(tool.number)
+ if existing and existing.plated == None:
+ existing.plated = tool.plated
+
+ self.comment_tools[tool.number] = tool
+
+ def _merge_properties(self, tool):
+ """
+ When we have externally defined tools, merge the properties of that tool into this one
+
+ For now, this is only plated
+ """
+
+ if tool.plated == ExcellonTool.PLATED_UNKNOWN:
+ ext_tool = self.ext_tools.get(tool.number)
+
+ if ext_tool:
+ tool.plated = ext_tool.plated
+
+ def _get_tool(self, toolid):
+
+ tool = self.tools.get(toolid)
+ if not tool:
+ tool = self.comment_tools.get(toolid)
+ if tool:
+ tool.settings = self._settings()
+ self.tools[toolid] = tool
+
+ if not tool:
+ tool = self.ext_tools.get(toolid)
+ if tool:
+ tool.settings = self._settings()
+ self.tools[toolid] = tool
+
+ return tool
+
+def detect_excellon_format(data=None, filename=None):
+ """ Detect excellon file decimal format and zero-suppression settings.
+
+ Parameters
+ ----------
+ data : string
+ String containing contents of Excellon file.
+
+ Returns
+ -------
+ settings : dict
+ Detected excellon file settings. Keys are
+ - `format`: decimal format as tuple (<int part>, <decimal part>)
+ - `zero_suppression`: zero suppression, 'leading' or 'trailing'
+ """
+ results = {}
+ detected_zeros = None
+ detected_format = None
+ zeros_options = ('leading', 'trailing', )
+ format_options = ((2, 4), (2, 5), (3, 3),)
+
+ if data is None and filename is None:
+ raise ValueError('Either data or filename arguments must be provided')
+ if data is None:
+ with open(filename, 'rU') as f:
+ data = f.read()
+
+ # Check for obvious clues:
+ p = ExcellonParser()
+ p.parse_raw(data)
+
+ # Get zero_suppression from a unit statement
+ zero_statements = [stmt.zeros for stmt in p.statements
+ if isinstance(stmt, UnitStmt)]
+
+ # get format from altium comment
+ format_comment = [stmt.comment for stmt in p.statements
+ if isinstance(stmt, CommentStmt)
+ and 'FILE_FORMAT' in stmt.comment]
+
+ detected_format = (tuple([int(val) for val in
+ format_comment[0].split('=')[1].split(':')])
+ if len(format_comment) == 1 else None)
+ detected_zeros = zero_statements[0] if len(zero_statements) == 1 else None
+
+ # Bail out here if possible
+ if detected_format is not None and detected_zeros is not None:
+ return {'format': detected_format, 'zeros': detected_zeros}
+
+ # Only look at remaining options
+ if detected_format is not None:
+ format_options = (detected_format,)
+ if detected_zeros is not None:
+ zeros_options = (detected_zeros,)
+
+ # Brute force all remaining options, and pick the best looking one...
+ for zeros in zeros_options:
+ for fmt in format_options:
+ key = (fmt, zeros)
+ settings = FileSettings(zeros=zeros, format=fmt)
+ try:
+ p = ExcellonParser(settings)
+ ef = p.parse_raw(data)
+ size = tuple([t[0] - t[1] for t in ef.bounding_box])
+ hole_area = 0.0
+ for hit in p.hits:
+ tool = hit.tool
+ hole_area += math.pow(math.pi * tool.diameter / 2., 2)
+ results[key] = (size, p.hole_count, hole_area)
+ except:
+ pass
+
+ # See if any of the dimensions are left with only a single option
+ formats = set(key[0] for key in iter(results.keys()))
+ zeros = set(key[1] for key in iter(results.keys()))
+ if len(formats) == 1:
+ detected_format = formats.pop()
+ if len(zeros) == 1:
+ detected_zeros = zeros.pop()
+
+ # Bail out here if we got everything....
+ if detected_format is not None and detected_zeros is not None:
+ return {'format': detected_format, 'zeros': detected_zeros}
+
+ # Otherwise score each option and pick the best candidate
+ else:
+ scores = {}
+ for key in results.keys():
+ size, count, diameter = results[key]
+ scores[key] = _layer_size_score(size, count, diameter)
+ minscore = min(scores.values())
+ for key in iter(scores.keys()):
+ if scores[key] == minscore:
+ return {'format': key[0], 'zeros': key[1]}
+
+
+def _layer_size_score(size, hole_count, hole_area):
+ """ Heuristic used for determining the correct file number interpretation.
+ Lower is better.
+ """
+ board_area = size[0] * size[1]
+ if board_area == 0:
+ return 0
+
+ hole_percentage = hole_area / board_area
+ hole_score = (hole_percentage - 0.25) ** 2
+ size_score = (board_area - 8) ** 2
+ return hole_score * size_score
diff --git a/gerber/excellon_report/excellon_drr.py b/gerber/excellon_report/excellon_drr.py
new file mode 100644
index 0000000..ab9e857
--- /dev/null
+++ b/gerber/excellon_report/excellon_drr.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2015 Garret Fick <garret@ficksworkshop.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Excellon DRR File module
+====================
+**Excellon file classes**
+
+Extra parsers for allegro misc files that can be useful when the Excellon file doesn't contain parameter information
+"""
+
diff --git a/gerber/excellon_settings.py b/gerber/excellon_settings.py
new file mode 100644
index 0000000..4dbe0ca
--- /dev/null
+++ b/gerber/excellon_settings.py
@@ -0,0 +1,105 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+from argparse import PARSER
+
+# Copyright 2015 Garret Fick <garret@ficksworkshop.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Excellon Settings Definition File module
+====================
+**Excellon file classes**
+
+This module provides Excellon file classes and parsing utilities
+"""
+
+import re
+try:
+ from cStringIO import StringIO
+except(ImportError):
+ from io import StringIO
+
+from .cam import FileSettings
+
+def loads(data):
+ """ Read settings file information and return an FileSettings
+ Parameters
+ ----------
+ data : string
+ string containing Excellon settings file contents
+
+ Returns
+ -------
+ file settings: FileSettings
+
+ """
+
+ return ExcellonSettingsParser().parse_raw(data)
+
+def map_coordinates(value):
+ if value == 'ABSOLUTE':
+ return 'absolute'
+ return 'relative'
+
+def map_units(value):
+ if value == 'ENGLISH':
+ return 'inch'
+ return 'metric'
+
+def map_boolean(value):
+ return value == 'YES'
+
+SETTINGS_KEYS = {
+ 'INTEGER-PLACES': (int, 'format-int'),
+ 'DECIMAL-PLACES': (int, 'format-dec'),
+ 'COORDINATES': (map_coordinates, 'notation'),
+ 'OUTPUT-UNITS': (map_units, 'units'),
+ }
+
+class ExcellonSettingsParser(object):
+ """Excellon Settings PARSER
+
+ Parameters
+ ----------
+ None
+ """
+
+ def __init__(self):
+ self.values = {}
+ self.settings = None
+
+ def parse_raw(self, data):
+ for line in StringIO(data):
+ self._parse(line.strip())
+
+ # Create the FileSettings object
+ self.settings = FileSettings(
+ notation=self.values['notation'],
+ units=self.values['units'],
+ format=(self.values['format-int'], self.values['format-dec'])
+ )
+
+ return self.settings
+
+ def _parse(self, line):
+
+ line_items = line.split()
+ if len(line_items) == 2:
+
+ item_type_info = SETTINGS_KEYS.get(line_items[0])
+ if item_type_info:
+ # Convert the value to the expected type
+ item_value = item_type_info[0](line_items[1])
+
+ self.values[item_type_info[1]] = item_value \ No newline at end of file
diff --git a/gerber/excellon_statements.py b/gerber/excellon_statements.py
new file mode 100644
index 0000000..2c50ef9
--- /dev/null
+++ b/gerber/excellon_statements.py
@@ -0,0 +1,979 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Excellon Statements
+====================
+**Excellon file statement classes**
+
+"""
+
+import re
+import uuid
+import itertools
+from .utils import (parse_gerber_value, write_gerber_value, decimal_string,
+ inch, metric)
+
+
+__all__ = ['ExcellonTool', 'ToolSelectionStmt', 'CoordinateStmt',
+ 'CommentStmt', 'HeaderBeginStmt', 'HeaderEndStmt',
+ 'RewindStopStmt', 'EndOfProgramStmt', 'UnitStmt',
+ 'IncrementalModeStmt', 'VersionStmt', 'FormatStmt', 'LinkToolStmt',
+ 'MeasuringModeStmt', 'RouteModeStmt', 'LinearModeStmt', 'DrillModeStmt',
+ 'AbsoluteModeStmt', 'RepeatHoleStmt', 'UnknownStmt',
+ 'ExcellonStatement', 'ZAxisRoutPositionStmt',
+ 'RetractWithClampingStmt', 'RetractWithoutClampingStmt',
+ 'CutterCompensationOffStmt', 'CutterCompensationLeftStmt',
+ 'CutterCompensationRightStmt', 'ZAxisInfeedRateStmt',
+ 'NextToolSelectionStmt', 'SlotStmt']
+
+
+class ExcellonStatement(object):
+ """ Excellon Statement abstract base class
+ """
+
+ @classmethod
+ def from_excellon(cls, line):
+ raise NotImplementedError('from_excellon must be implemented in a '
+ 'subclass')
+
+ def __init__(self, unit='inch', id=None):
+ self.units = unit
+ self.id = uuid.uuid4().int if id is None else id
+
+ def to_excellon(self, settings=None):
+ raise NotImplementedError('to_excellon must be implemented in a '
+ 'subclass')
+
+ def to_inch(self):
+ self.units = 'inch'
+
+ def to_metric(self):
+ self.units = 'metric'
+
+ def offset(self, x_offset=0, y_offset=0):
+ pass
+
+ def __eq__(self, other):
+ return self.__dict__ == other.__dict__
+
+
+class ExcellonTool(ExcellonStatement):
+ """ Excellon Tool class
+
+ Parameters
+ ----------
+ settings : FileSettings (dict-like)
+ File-wide settings.
+
+ kwargs : dict-like
+ Tool settings from the excellon statement. Valid keys are:
+ - `diameter` : Tool diameter [expressed in file units]
+ - `rpm` : Tool RPM
+ - `feed_rate` : Z-axis tool feed rate
+ - `retract_rate` : Z-axis tool retraction rate
+ - `max_hit_count` : Number of hits allowed before a tool change
+ - `depth_offset` : Offset of tool depth from tip of tool.
+
+ Attributes
+ ----------
+ number : integer
+ Tool number from the excellon file
+
+ diameter : float
+ Tool diameter in file units
+
+ rpm : float
+ Tool RPM
+
+ feed_rate : float
+ Tool Z-axis feed rate.
+
+ retract_rate : float
+ Tool Z-axis retract rate
+
+ depth_offset : float
+ Offset of depth measurement from tip of tool
+
+ max_hit_count : integer
+ Maximum number of tool hits allowed before a tool change
+
+ hit_count : integer
+ Number of tool hits in excellon file.
+ """
+
+ PLATED_UNKNOWN = None
+ PLATED_YES = 'plated'
+ PLATED_NO = 'nonplated'
+ PLATED_OPTIONAL = 'optional'
+
+ @classmethod
+ def from_tool(cls, tool):
+ args = {}
+
+ args['depth_offset'] = tool.depth_offset
+ args['diameter'] = tool.diameter
+ args['feed_rate'] = tool.feed_rate
+ args['max_hit_count'] = tool.max_hit_count
+ args['number'] = tool.number
+ args['plated'] = tool.plated
+ args['retract_rate'] = tool.retract_rate
+ args['rpm'] = tool.rpm
+
+ return cls(None, **args)
+
+ @classmethod
+ def from_excellon(cls, line, settings, id=None, plated=None):
+ """ Create a Tool from an excellon file tool definition line.
+
+ Parameters
+ ----------
+ line : string
+ Tool definition line from an excellon file.
+
+ settings : FileSettings (dict-like)
+ Excellon file-wide settings
+
+ Returns
+ -------
+ tool : Tool
+ An ExcellonTool representing the tool defined in `line`
+ """
+ commands = pairwise(re.split('([BCFHSTZ])', line)[1:])
+ args = {}
+ args['id'] = id
+ nformat = settings.format
+ zero_suppression = settings.zero_suppression
+ for cmd, val in commands:
+ if cmd == 'B':
+ args['retract_rate'] = parse_gerber_value(val, nformat, zero_suppression)
+ elif cmd == 'C':
+ args['diameter'] = parse_gerber_value(val, nformat, zero_suppression)
+ elif cmd == 'F':
+ args['feed_rate'] = parse_gerber_value(val, nformat, zero_suppression)
+ elif cmd == 'H':
+ args['max_hit_count'] = parse_gerber_value(val, nformat, zero_suppression)
+ elif cmd == 'S':
+ args['rpm'] = 1000 * parse_gerber_value(val, nformat, zero_suppression)
+ elif cmd == 'T':
+ args['number'] = int(val)
+ elif cmd == 'Z':
+ args['depth_offset'] = parse_gerber_value(val, nformat, zero_suppression)
+
+ if plated != ExcellonTool.PLATED_UNKNOWN:
+ # Sometimees we can can parse the plating status
+ args['plated'] = plated
+ return cls(settings, **args)
+
+ @classmethod
+ def from_dict(cls, settings, tool_dict):
+ """ Create an ExcellonTool from a dict.
+
+ Parameters
+ ----------
+ settings : FileSettings (dict-like)
+ Excellon File-wide settings
+
+ tool_dict : dict
+ Excellon tool parameters as a dict
+
+ Returns
+ -------
+ tool : ExcellonTool
+ An ExcellonTool initialized with the parameters in tool_dict.
+ """
+ return cls(settings, **tool_dict)
+
+ def __init__(self, settings, **kwargs):
+ if kwargs.get('id') is not None:
+ super(ExcellonTool, self).__init__(id=kwargs.get('id'))
+ self.settings = settings
+ self.number = kwargs.get('number')
+ self.feed_rate = kwargs.get('feed_rate')
+ self.retract_rate = kwargs.get('retract_rate')
+ self.rpm = kwargs.get('rpm')
+ self.diameter = kwargs.get('diameter')
+ self.max_hit_count = kwargs.get('max_hit_count')
+ self.depth_offset = kwargs.get('depth_offset')
+ self.plated = kwargs.get('plated')
+
+ self.hit_count = 0
+
+ def to_excellon(self, settings=None):
+ if self.settings and not settings:
+ settings = self.settings
+ fmt = settings.format
+ zs = settings.zero_suppression
+ stmt = 'T%02d' % self.number
+ if self.retract_rate is not None:
+ stmt += 'B%s' % write_gerber_value(self.retract_rate, fmt, zs)
+ if self.feed_rate is not None:
+ stmt += 'F%s' % write_gerber_value(self.feed_rate, fmt, zs)
+ if self.max_hit_count is not None:
+ stmt += 'H%s' % write_gerber_value(self.max_hit_count, fmt, zs)
+ if self.rpm is not None:
+ if self.rpm < 100000.:
+ stmt += 'S%s' % write_gerber_value(self.rpm / 1000., fmt, zs)
+ else:
+ stmt += 'S%g' % (self.rpm / 1000.)
+ if self.diameter is not None:
+ stmt += 'C%s' % decimal_string(self.diameter, fmt[1], True)
+ if self.depth_offset is not None:
+ stmt += 'Z%s' % write_gerber_value(self.depth_offset, fmt, zs)
+ return stmt
+
+ def to_inch(self):
+ if self.settings.units != 'inch':
+ self.settings.units = 'inch'
+ if self.diameter is not None:
+ self.diameter = inch(self.diameter)
+
+ def to_metric(self):
+ if self.settings.units != 'metric':
+ self.settings.units = 'metric'
+ if self.diameter is not None:
+ self.diameter = metric(self.diameter)
+
+ def _hit(self):
+ self.hit_count += 1
+
+ def equivalent(self, other):
+ """
+ Is the other tool equal to this, ignoring the tool number, and other file specified properties
+ """
+
+ if type(self) != type(other):
+ return False
+
+ return (self.diameter == other.diameter
+ and self.feed_rate == other.feed_rate
+ and self.retract_rate == other.retract_rate
+ and self.rpm == other.rpm
+ and self.depth_offset == other.depth_offset
+ and self.max_hit_count == other.max_hit_count
+ and self.plated == other.plated
+ and self.settings.units == other.settings.units)
+
+ def __repr__(self):
+ unit = 'in.' if self.settings.units == 'inch' else 'mm'
+ fmtstr = '<ExcellonTool %%02d: %%%d.%dg%%s dia.>' % self.settings.format
+ return fmtstr % (self.number, self.diameter, unit)
+
+
+class ToolSelectionStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ """ Create a ToolSelectionStmt from an excellon file line.
+
+ Parameters
+ ----------
+ line : string
+ Line from an Excellon file
+
+ Returns
+ -------
+ tool_statement : ToolSelectionStmt
+ ToolSelectionStmt representation of `line.`
+ """
+ line = line[1:]
+ compensation_index = None
+
+ # up to 3 characters for tool number (Frizting uses that)
+ if len(line) <= 3:
+ tool = int(line)
+ else:
+ tool = int(line[:2])
+ compensation_index = int(line[2:])
+
+ return cls(tool, compensation_index, **kwargs)
+
+ def __init__(self, tool, compensation_index=None, **kwargs):
+ super(ToolSelectionStmt, self).__init__(**kwargs)
+ tool = int(tool)
+ compensation_index = (int(compensation_index) if compensation_index
+ is not None else None)
+ self.tool = tool
+ self.compensation_index = compensation_index
+
+ def to_excellon(self, settings=None):
+ stmt = 'T%02d' % self.tool
+ if self.compensation_index is not None:
+ stmt += '%02d' % self.compensation_index
+ return stmt
+
+class NextToolSelectionStmt(ExcellonStatement):
+
+ # TODO the statement exists outside of the context of the file,
+ # so it is imposible to know that it is really the next tool
+
+ def __init__(self, cur_tool, next_tool, **kwargs):
+ """
+ Select the next tool in the wheel.
+ Parameters
+ ----------
+ cur_tool : the tool that is currently selected
+ next_tool : the that that is now selected
+ """
+ super(NextToolSelectionStmt, self).__init__(**kwargs)
+
+ self.cur_tool = cur_tool
+ self.next_tool = next_tool
+
+ def to_excellon(self, settings=None):
+ stmt = 'M00'
+ return stmt
+
+class ZAxisInfeedRateStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ """ Create a ZAxisInfeedRate from an excellon file line.
+
+ Parameters
+ ----------
+ line : string
+ Line from an Excellon file
+
+ Returns
+ -------
+ z_axis_infeed_rate : ToolSelectionStmt
+ ToolSelectionStmt representation of `line.`
+ """
+ rate = int(line[1:])
+
+ return cls(rate, **kwargs)
+
+ def __init__(self, rate, **kwargs):
+ super(ZAxisInfeedRateStmt, self).__init__(**kwargs)
+ self.rate = rate
+
+ def to_excellon(self, settings=None):
+ return 'F%02d' % self.rate
+
+
+class CoordinateStmt(ExcellonStatement):
+
+ @classmethod
+ def from_point(cls, point, mode=None):
+
+ stmt = cls(point[0], point[1])
+ if mode:
+ stmt.mode = mode
+ return stmt
+
+ @classmethod
+ def from_excellon(cls, line, settings, **kwargs):
+ x_coord = None
+ y_coord = None
+ if line[0] == 'X':
+ splitline = line.strip('X').split('Y')
+ x_coord = parse_gerber_value(splitline[0], settings.format,
+ settings.zero_suppression)
+ if len(splitline) == 2:
+ y_coord = parse_gerber_value(splitline[1], settings.format,
+ settings.zero_suppression)
+ else:
+ y_coord = parse_gerber_value(line.strip(' Y'), settings.format,
+ settings.zero_suppression)
+ c = cls(x_coord, y_coord, **kwargs)
+ c.units = settings.units
+ return c
+
+ def __init__(self, x=None, y=None, **kwargs):
+ super(CoordinateStmt, self).__init__(**kwargs)
+ self.x = x
+ self.y = y
+ self.mode = None
+
+ def to_excellon(self, settings):
+ stmt = ''
+ if self.mode == "ROUT":
+ stmt += "G00"
+ if self.mode == "LINEAR":
+ stmt += "G01"
+ if self.x is not None:
+ stmt += 'X%s' % write_gerber_value(self.x, settings.format,
+ settings.zero_suppression)
+ if self.y is not None:
+ stmt += 'Y%s' % write_gerber_value(self.y, settings.format,
+ settings.zero_suppression)
+ return stmt
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ if self.x is not None:
+ self.x = inch(self.x)
+ if self.y is not None:
+ self.y = inch(self.y)
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ if self.x is not None:
+ self.x = metric(self.x)
+ if self.y is not None:
+ self.y = metric(self.y)
+
+ def offset(self, x_offset=0, y_offset=0):
+ if self.x is not None:
+ self.x += x_offset
+ if self.y is not None:
+ self.y += y_offset
+
+ def __str__(self):
+ coord_str = ''
+ if self.x is not None:
+ coord_str += 'X: %g ' % self.x
+ if self.y is not None:
+ coord_str += 'Y: %g ' % self.y
+
+ return '<Coordinate Statement: %s>' % coord_str
+
+
+class RepeatHoleStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, settings, **kwargs):
+ match = re.compile(r'R(?P<rcount>[0-9]*)X?(?P<xdelta>[+\-]?\d*\.?\d*)?Y?'
+ '(?P<ydelta>[+\-]?\d*\.?\d*)?').match(line)
+ stmt = match.groupdict()
+ count = int(stmt['rcount'])
+ xdelta = (parse_gerber_value(stmt['xdelta'], settings.format,
+ settings.zero_suppression)
+ if stmt['xdelta'] is not '' else None)
+ ydelta = (parse_gerber_value(stmt['ydelta'], settings.format,
+ settings.zero_suppression)
+ if stmt['ydelta'] is not '' else None)
+ c = cls(count, xdelta, ydelta, **kwargs)
+ c.units = settings.units
+ return c
+
+ def __init__(self, count, xdelta=0.0, ydelta=0.0, **kwargs):
+ super(RepeatHoleStmt, self).__init__(**kwargs)
+ self.count = count
+ self.xdelta = xdelta
+ self.ydelta = ydelta
+
+ def to_excellon(self, settings):
+ stmt = 'R%d' % self.count
+ if self.xdelta is not None and self.xdelta != 0.0:
+ stmt += 'X%s' % write_gerber_value(self.xdelta, settings.format,
+ settings.zero_suppression)
+ if self.ydelta is not None and self.ydelta != 0.0:
+ stmt += 'Y%s' % write_gerber_value(self.ydelta, settings.format,
+ settings.zero_suppression)
+ return stmt
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ if self.xdelta is not None:
+ self.xdelta = inch(self.xdelta)
+ if self.ydelta is not None:
+ self.ydelta = inch(self.ydelta)
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ if self.xdelta is not None:
+ self.xdelta = metric(self.xdelta)
+ if self.ydelta is not None:
+ self.ydelta = metric(self.ydelta)
+
+ def __str__(self):
+ return '<Repeat Hole: %d times, offset X: %g Y: %g>' % (
+ self.count,
+ self.xdelta if self.xdelta is not None else 0,
+ self.ydelta if self.ydelta is not None else 0)
+
+
+class CommentStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ return cls(line.lstrip(';'))
+
+ def __init__(self, comment, **kwargs):
+ super(CommentStmt, self).__init__(**kwargs)
+ self.comment = comment
+
+ def to_excellon(self, settings=None):
+ return ';%s' % self.comment
+
+
+class HeaderBeginStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(HeaderBeginStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'M48'
+
+
+class HeaderEndStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(HeaderEndStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'M95'
+
+
+class RewindStopStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(RewindStopStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return '%'
+
+
+class ZAxisRoutPositionStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(ZAxisRoutPositionStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'M15'
+
+
+class RetractWithClampingStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(RetractWithClampingStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'M16'
+
+
+class RetractWithoutClampingStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(RetractWithoutClampingStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'M17'
+
+
+class CutterCompensationOffStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(CutterCompensationOffStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'G40'
+
+
+class CutterCompensationLeftStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(CutterCompensationLeftStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'G41'
+
+
+class CutterCompensationRightStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(CutterCompensationRightStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'G42'
+
+
+class EndOfProgramStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, settings, **kwargs):
+ match = re.compile(r'M30X?(?P<x>\d*\.?\d*)?Y?'
+ '(?P<y>\d*\.?\d*)?').match(line)
+ stmt = match.groupdict()
+ x = (parse_gerber_value(stmt['x'], settings.format,
+ settings.zero_suppression)
+ if stmt['x'] is not '' else None)
+ y = (parse_gerber_value(stmt['y'], settings.format,
+ settings.zero_suppression)
+ if stmt['y'] is not '' else None)
+ c = cls(x, y, **kwargs)
+ c.units = settings.units
+ return c
+
+ def __init__(self, x=None, y=None, **kwargs):
+ super(EndOfProgramStmt, self).__init__(**kwargs)
+ self.x = x
+ self.y = y
+
+ def to_excellon(self, settings=None):
+ stmt = 'M30'
+ if self.x is not None:
+ stmt += 'X%s' % write_gerber_value(self.x)
+ if self.y is not None:
+ stmt += 'Y%s' % write_gerber_value(self.y)
+ return stmt
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ if self.x is not None:
+ self.x = inch(self.x)
+ if self.y is not None:
+ self.y = inch(self.y)
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ if self.x is not None:
+ self.x = metric(self.x)
+ if self.y is not None:
+ self.y = metric(self.y)
+
+ def offset(self, x_offset=0, y_offset=0):
+ if self.x is not None:
+ self.x += x_offset
+ if self.y is not None:
+ self.y += y_offset
+
+
+class UnitStmt(ExcellonStatement):
+
+ @classmethod
+ def from_settings(cls, settings):
+ """Create the unit statement from the FileSettings"""
+
+ return cls(settings.units, settings.zeros)
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ units = 'inch' if 'INCH' in line else 'metric'
+ zeros = 'leading' if 'LZ' in line else 'trailing'
+ if '0000.00' in line:
+ format = (4, 2)
+ elif '000.000' in line:
+ format = (3, 3)
+ elif '00.0000' in line:
+ format = (2, 4)
+ else:
+ format = None
+ return cls(units, zeros, format, **kwargs)
+
+ def __init__(self, units='inch', zeros='leading', format=None, **kwargs):
+ super(UnitStmt, self).__init__(**kwargs)
+ self.units = units.lower()
+ self.zeros = zeros
+ self.format = format
+
+ def to_excellon(self, settings=None):
+ # TODO This won't export the invalid format statement if it exists
+ stmt = '%s,%s' % ('INCH' if self.units == 'inch' else 'METRIC',
+ 'LZ' if self.zeros == 'leading'
+ else 'TZ')
+ return stmt
+
+ def to_inch(self):
+ self.units = 'inch'
+
+ def to_metric(self):
+ self.units = 'metric'
+
+
+class IncrementalModeStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ return cls('off', **kwargs) if 'OFF' in line else cls('on', **kwargs)
+
+ def __init__(self, mode='off', **kwargs):
+ super(IncrementalModeStmt, self).__init__(**kwargs)
+ if mode.lower() not in ['on', 'off']:
+ raise ValueError('Mode may be "on" or "off"')
+ self.mode = mode
+
+ def to_excellon(self, settings=None):
+ return 'ICI,%s' % ('OFF' if self.mode == 'off' else 'ON')
+
+
+class VersionStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ version = int(line.split(',')[1])
+ return cls(version, **kwargs)
+
+ def __init__(self, version=1, **kwargs):
+ super(VersionStmt, self).__init__(**kwargs)
+ version = int(version)
+ if version not in [1, 2]:
+ raise ValueError('Valid versions are 1 or 2')
+ self.version = version
+
+ def to_excellon(self, settings=None):
+ return 'VER,%d' % self.version
+
+
+class FormatStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ fmt = int(line.split(',')[1])
+ return cls(fmt, **kwargs)
+
+ def __init__(self, format=1, **kwargs):
+ super(FormatStmt, self).__init__(**kwargs)
+ format = int(format)
+ if format not in [1, 2]:
+ raise ValueError('Valid formats are 1 or 2')
+ self.format = format
+
+ def to_excellon(self, settings=None):
+ return 'FMAT,%d' % self.format
+
+ @property
+ def format_tuple(self):
+ return (self.format, 6 - self.format)
+
+
+class LinkToolStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ linked = [int(tool) for tool in line.split('/')]
+ return cls(linked, **kwargs)
+
+ def __init__(self, linked_tools, **kwargs):
+ super(LinkToolStmt, self).__init__(**kwargs)
+ self.linked_tools = [int(x) for x in linked_tools]
+
+ def to_excellon(self, settings=None):
+ return '/'.join([str(x) for x in self.linked_tools])
+
+
+class MeasuringModeStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ if not ('M71' in line or 'M72' in line):
+ raise ValueError('Not a measuring mode statement')
+ return cls('inch', **kwargs) if 'M72' in line else cls('metric', **kwargs)
+
+ def __init__(self, units='inch', **kwargs):
+ super(MeasuringModeStmt, self).__init__(**kwargs)
+ units = units.lower()
+ if units not in ['inch', 'metric']:
+ raise ValueError('units must be "inch" or "metric"')
+ self.units = units
+
+ def to_excellon(self, settings=None):
+ return 'M72' if self.units == 'inch' else 'M71'
+
+ def to_inch(self):
+ self.units = 'inch'
+
+ def to_metric(self):
+ self.units = 'metric'
+
+
+class RouteModeStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(RouteModeStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'G00'
+
+
+class LinearModeStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(LinearModeStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'G01'
+
+
+class DrillModeStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(DrillModeStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'G05'
+
+
+class AbsoluteModeStmt(ExcellonStatement):
+
+ def __init__(self, **kwargs):
+ super(AbsoluteModeStmt, self).__init__(**kwargs)
+
+ def to_excellon(self, settings=None):
+ return 'G90'
+
+
+class UnknownStmt(ExcellonStatement):
+
+ @classmethod
+ def from_excellon(cls, line, **kwargs):
+ return cls(line, **kwargs)
+
+ def __init__(self, stmt, **kwargs):
+ super(UnknownStmt, self).__init__(**kwargs)
+ self.stmt = stmt
+
+ def to_excellon(self, settings=None):
+ return self.stmt
+
+ def __str__(self):
+ return "<Unknown Statement: %s>" % self.stmt
+
+
+class SlotStmt(ExcellonStatement):
+ """
+ G85 statement. Defines a slot created by multiple drills between two specified points.
+
+ Format is two coordinates, split by G85in the middle, for example, XnY0nG85XnYn
+ """
+
+ @classmethod
+ def from_points(cls, start, end):
+
+ return cls(start[0], start[1], end[0], end[1])
+
+ @classmethod
+ def from_excellon(cls, line, settings, **kwargs):
+ # Split the line based on the G85 separator
+ sub_coords = line.split('G85')
+ (x_start_coord, y_start_coord) = SlotStmt.parse_sub_coords(sub_coords[0], settings)
+ (x_end_coord, y_end_coord) = SlotStmt.parse_sub_coords(sub_coords[1], settings)
+
+ # Some files seem to specify only one of the coordinates
+ if x_end_coord == None:
+ x_end_coord = x_start_coord
+ if y_end_coord == None:
+ y_end_coord = y_start_coord
+
+ c = cls(x_start_coord, y_start_coord, x_end_coord, y_end_coord, **kwargs)
+ c.units = settings.units
+ return c
+
+ @staticmethod
+ def parse_sub_coords(line, settings):
+
+ x_coord = None
+ y_coord = None
+
+ if line[0] == 'X':
+ splitline = line.strip('X').split('Y')
+ x_coord = parse_gerber_value(splitline[0], settings.format,
+ settings.zero_suppression)
+ if len(splitline) == 2:
+ y_coord = parse_gerber_value(splitline[1], settings.format,
+ settings.zero_suppression)
+ else:
+ y_coord = parse_gerber_value(line.strip(' Y'), settings.format,
+ settings.zero_suppression)
+
+ return (x_coord, y_coord)
+
+
+ def __init__(self, x_start=None, y_start=None, x_end=None, y_end=None, **kwargs):
+ super(SlotStmt, self).__init__(**kwargs)
+ self.x_start = x_start
+ self.y_start = y_start
+ self.x_end = x_end
+ self.y_end = y_end
+ self.mode = None
+
+ def to_excellon(self, settings):
+ stmt = ''
+
+ if self.x_start is not None:
+ stmt += 'X%s' % write_gerber_value(self.x_start, settings.format,
+ settings.zero_suppression)
+ if self.y_start is not None:
+ stmt += 'Y%s' % write_gerber_value(self.y_start, settings.format,
+ settings.zero_suppression)
+
+ stmt += 'G85'
+
+ if self.x_end is not None:
+ stmt += 'X%s' % write_gerber_value(self.x_end, settings.format,
+ settings.zero_suppression)
+ if self.y_end is not None:
+ stmt += 'Y%s' % write_gerber_value(self.y_end, settings.format,
+ settings.zero_suppression)
+
+ return stmt
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ if self.x_start is not None:
+ self.x_start = inch(self.x_start)
+ if self.y_start is not None:
+ self.y_start = inch(self.y_start)
+ if self.x_end is not None:
+ self.x_end = inch(self.x_end)
+ if self.y_end is not None:
+ self.y_end = inch(self.y_end)
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ if self.x_start is not None:
+ self.x_start = metric(self.x_start)
+ if self.y_start is not None:
+ self.y_start = metric(self.y_start)
+ if self.x_end is not None:
+ self.x_end = metric(self.x_end)
+ if self.y_end is not None:
+ self.y_end = metric(self.y_end)
+
+ def offset(self, x_offset=0, y_offset=0):
+ if self.x_start is not None:
+ self.x_start += x_offset
+ if self.y_start is not None:
+ self.y_start += y_offset
+ if self.x_end is not None:
+ self.x_end += x_offset
+ if self.y_end is not None:
+ self.y_end += y_offset
+
+ def __str__(self):
+ start_str = ''
+ if self.x_start is not None:
+ start_str += 'X: %g ' % self.x_start
+ if self.y_start is not None:
+ start_str += 'Y: %g ' % self.y_start
+
+ end_str = ''
+ if self.x_end is not None:
+ end_str += 'X: %g ' % self.x_end
+ if self.y_end is not None:
+ end_str += 'Y: %g ' % self.y_end
+
+ return '<Slot Statement: %s to %s>' % (start_str, end_str)
+
+def pairwise(iterator):
+ """ Iterate over list taking two elements at a time.
+
+ e.g. [1, 2, 3, 4, 5, 6] ==> [(1, 2), (3, 4), (5, 6)]
+ """
+ a, b = itertools.tee(iterator)
+ itr = zip(itertools.islice(a, 0, None, 2), itertools.islice(b, 1, None, 2))
+ for elem in itr:
+ yield elem
diff --git a/gerber/excellon_tool.py b/gerber/excellon_tool.py
new file mode 100644
index 0000000..a9ac450
--- /dev/null
+++ b/gerber/excellon_tool.py
@@ -0,0 +1,190 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2015 Garret Fick <garret@ficksworkshop.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Excellon Tool Definition File module
+====================
+**Excellon file classes**
+
+This module provides Excellon file classes and parsing utilities
+"""
+
+import re
+try:
+ from cStringIO import StringIO
+except(ImportError):
+ from io import StringIO
+
+from .excellon_statements import ExcellonTool
+
+def loads(data, settings=None):
+ """ Read tool file information and return a map of tools
+ Parameters
+ ----------
+ data : string
+ string containing Excellon Tool Definition file contents
+
+ Returns
+ -------
+ dict tool name: ExcellonTool
+
+ """
+ return ExcellonToolDefinitionParser(settings).parse_raw(data)
+
+class ExcellonToolDefinitionParser(object):
+ """ Excellon File Parser
+
+ Parameters
+ ----------
+ None
+ """
+
+ allegro_tool = re.compile(r'(?P<size>[0-9/.]+)\s+(?P<plated>P|N)\s+T(?P<toolid>[0-9]{2})\s+(?P<xtol>[0-9/.]+)\s+(?P<ytol>[0-9/.]+)')
+ allegro_comment_mils = re.compile('Holesize (?P<toolid>[0-9]{1,2})\. = (?P<size>[0-9/.]+) Tolerance = \+(?P<xtol>[0-9/.]+)/-(?P<ytol>[0-9/.]+) (?P<plated>(PLATED)|(NON_PLATED)|(OPTIONAL)) MILS Quantity = [0-9]+')
+ allegro2_comment_mils = re.compile('T(?P<toolid>[0-9]{1,2}) Holesize (?P<toolid2>[0-9]{1,2})\. = (?P<size>[0-9/.]+) Tolerance = \+(?P<xtol>[0-9/.]+)/-(?P<ytol>[0-9/.]+) (?P<plated>(PLATED)|(NON_PLATED)|(OPTIONAL)) MILS Quantity = [0-9]+')
+ allegro_comment_mm = re.compile('Holesize (?P<toolid>[0-9]{1,2})\. = (?P<size>[0-9/.]+) Tolerance = \+(?P<xtol>[0-9/.]+)/-(?P<ytol>[0-9/.]+) (?P<plated>(PLATED)|(NON_PLATED)|(OPTIONAL)) MM Quantity = [0-9]+')
+ allegro2_comment_mm = re.compile('T(?P<toolid>[0-9]{1,2}) Holesize (?P<toolid2>[0-9]{1,2})\. = (?P<size>[0-9/.]+) Tolerance = \+(?P<xtol>[0-9/.]+)/-(?P<ytol>[0-9/.]+) (?P<plated>(PLATED)|(NON_PLATED)|(OPTIONAL)) MM Quantity = [0-9]+')
+
+ matchers = [
+ (allegro_tool, 'mils'),
+ (allegro_comment_mils, 'mils'),
+ (allegro2_comment_mils, 'mils'),
+ (allegro_comment_mm, 'mm'),
+ (allegro2_comment_mm, 'mm'),
+ ]
+
+ def __init__(self, settings=None):
+ self.tools = {}
+ self.settings = settings
+
+ def parse_raw(self, data):
+ for line in StringIO(data):
+ self._parse(line.strip())
+
+ return self.tools
+
+ def _parse(self, line):
+
+ for matcher in ExcellonToolDefinitionParser.matchers:
+ m = matcher[0].match(line)
+ if m:
+ unit = matcher[1]
+
+ size = float(m.group('size'))
+ platedstr = m.group('plated')
+ toolid = int(m.group('toolid'))
+ xtol = float(m.group('xtol'))
+ ytol = float(m.group('ytol'))
+
+ size = self._convert_length(size, unit)
+ xtol = self._convert_length(xtol, unit)
+ ytol = self._convert_length(ytol, unit)
+
+ if platedstr == 'PLATED':
+ plated = ExcellonTool.PLATED_YES
+ elif platedstr == 'NON_PLATED':
+ plated = ExcellonTool.PLATED_NO
+ elif platedstr == 'OPTIONAL':
+ plated = ExcellonTool.PLATED_OPTIONAL
+ else:
+ plated = ExcellonTool.PLATED_UNKNOWN
+
+ tool = ExcellonTool(None, number=toolid, diameter=size,
+ plated=plated)
+
+ self.tools[tool.number] = tool
+
+ break
+
+ def _convert_length(self, value, unit):
+
+ # Convert the value to mm
+ if unit == 'mils':
+ value /= 39.3700787402
+
+ # Now convert to the settings unit
+ if self.settings.units == 'inch':
+ return value / 25.4
+ else:
+ # Already in mm
+ return value
+
+def loads_rep(data, settings=None):
+ """ Read tool report information generated by PADS and return a map of tools
+ Parameters
+ ----------
+ data : string
+ string containing Excellon Report file contents
+
+ Returns
+ -------
+ dict tool name: ExcellonTool
+
+ """
+ return ExcellonReportParser(settings).parse_raw(data)
+
+class ExcellonReportParser(object):
+
+ # We sometimes get files with different encoding, so we can't actually
+ # match the text - the best we can do it detect the table header
+ header = re.compile(r'====\s+====\s+====\s+====\s+=====\s+===')
+
+ def __init__(self, settings=None):
+ self.tools = {}
+ self.settings = settings
+
+ self.found_header = False
+
+ def parse_raw(self, data):
+ for line in StringIO(data):
+ self._parse(line.strip())
+
+ return self.tools
+
+ def _parse(self, line):
+
+ # skip empty lines and "comments"
+ if not line.strip():
+ return
+
+ if not self.found_header:
+ # Try to find the heaader, since we need that to be sure we
+ # understand the contents correctly.
+ if ExcellonReportParser.header.match(line):
+ self.found_header = True
+
+ elif line[0] != '=':
+ # Already found the header, so we know to to map the contents
+ parts = line.split()
+ if len(parts) == 6:
+ toolid = int(parts[0])
+ size = float(parts[1])
+ if parts[2] == 'x':
+ plated = ExcellonTool.PLATED_YES
+ elif parts[2] == '-':
+ plated = ExcellonTool.PLATED_NO
+ else:
+ plated = ExcellonTool.PLATED_UNKNOWN
+ feedrate = int(parts[3])
+ speed = int(parts[4])
+ qty = int(parts[5])
+
+ tool = ExcellonTool(None, number=toolid, diameter=size,
+ plated=plated, feed_rate=feedrate,
+ rpm=speed)
+
+ self.tools[tool.number] = tool
diff --git a/gerber/exceptions.py b/gerber/exceptions.py
new file mode 100644
index 0000000..65ae905
--- /dev/null
+++ b/gerber/exceptions.py
@@ -0,0 +1,36 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2015 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+class ParseError(Exception):
+ pass
+
+
+class GerberParseError(ParseError):
+ pass
+
+
+class ExcellonParseError(ParseError):
+ pass
+
+
+class ExcellonFileError(IOError):
+ pass
+
+
+class GerberFileError(IOError):
+ pass
diff --git a/gerber/gerber_statements.py b/gerber/gerber_statements.py
new file mode 100644
index 0000000..28f5e81
--- /dev/null
+++ b/gerber/gerber_statements.py
@@ -0,0 +1,1189 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Gerber (RS-274X) Statements
+===========================
+**Gerber RS-274X file statement classes**
+
+"""
+from .utils import (parse_gerber_value, write_gerber_value, decimal_string,
+ inch, metric)
+
+from .am_statements import *
+from .am_read import read_macro
+from .am_eval import eval_macro
+from .primitives import AMGroup
+
+
+class Statement(object):
+ """ Gerber statement Base class
+
+ The statement class provides a type attribute.
+
+ Parameters
+ ----------
+ type : string
+ String identifying the statement type.
+
+ Attributes
+ ----------
+ type : string
+ String identifying the statement type.
+ """
+
+ def __init__(self, stype, units='inch'):
+ self.type = stype
+ self.units = units
+
+ def __str__(self):
+ s = "<{0} ".format(self.__class__.__name__)
+
+ for key, value in self.__dict__.items():
+ s += "{0}={1} ".format(key, value)
+
+ s = s.rstrip() + ">"
+ return s
+
+ def to_inch(self):
+ self.units = 'inch'
+
+ def to_metric(self):
+ self.units = 'metric'
+
+ def offset(self, x_offset=0, y_offset=0):
+ pass
+
+ def __eq__(self, other):
+ return self.__dict__ == other.__dict__
+
+
+class ParamStmt(Statement):
+ """ Gerber parameter statement Base class
+
+ The parameter statement class provides a parameter type attribute.
+
+ Parameters
+ ----------
+ param : string
+ two-character code identifying the parameter statement type.
+
+ Attributes
+ ----------
+ param : string
+ Parameter type code
+ """
+
+ def __init__(self, param):
+ Statement.__init__(self, "PARAM")
+ self.param = param
+
+
+class FSParamStmt(ParamStmt):
+ """ FS - Gerber Format Specification Statement
+ """
+
+ @classmethod
+ def from_settings(cls, settings):
+
+ return cls('FS', settings.zero_suppression, settings.notation, settings.format)
+
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ """
+ """
+ param = stmt_dict.get('param')
+
+ if stmt_dict.get('zero') == 'L':
+ zeros = 'leading'
+ elif stmt_dict.get('zero') == 'T':
+ zeros = 'trailing'
+ else:
+ zeros = 'none'
+
+ notation = 'absolute' if stmt_dict.get('notation') == 'A' else 'incremental'
+ fmt = tuple(map(int, stmt_dict.get('x')))
+ return cls(param, zeros, notation, fmt)
+
+ def __init__(self, param, zero_suppression='leading',
+ notation='absolute', format=(2, 4)):
+ """ Initialize FSParamStmt class
+
+ .. note::
+ The FS command specifies the format of the coordinate data. It
+ must only be used once at the beginning of a file. It must be
+ specified before the first use of coordinate data.
+
+ Parameters
+ ----------
+ param : string
+ Parameter.
+
+ zero_suppression : string
+ Zero-suppression mode. May be either 'leading', 'trailing' or 'none' (all zeros are present)
+
+ notation : string
+ Notation mode. May be either 'absolute' or 'incremental'
+
+ format : tuple (int, int)
+ Gerber precision format expressed as a tuple containing:
+ (number of integer-part digits, number of decimal-part digits)
+
+ Returns
+ -------
+ ParamStmt : FSParamStmt
+ Initialized FSParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.zero_suppression = zero_suppression
+ self.notation = notation
+ self.format = format
+
+ def to_gerber(self, settings=None):
+ if settings:
+ zero_suppression = 'L' if settings.zero_suppression == 'leading' else 'T'
+ notation = 'A' if settings.notation == 'absolute' else 'I'
+ fmt = ''.join(map(str, settings.format))
+ else:
+ zero_suppression = 'L' if self.zero_suppression == 'leading' else 'T'
+ notation = 'A' if self.notation == 'absolute' else 'I'
+ fmt = ''.join(map(str, self.format))
+
+ return '%FS{0}{1}X{2}Y{3}*%'.format(zero_suppression, notation, fmt, fmt)
+
+ def __str__(self):
+ return ('<Format Spec: %d:%d %s zero suppression %s notation>' %
+ (self.format[0], self.format[1], self.zero_suppression, self.notation))
+
+
+class MOParamStmt(ParamStmt):
+ """ MO - Gerber Mode (measurement units) Statement.
+ """
+
+ @classmethod
+ def from_units(cls, units):
+ return cls(None, units)
+
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict.get('param')
+ if stmt_dict.get('mo') is None:
+ mo = None
+ elif stmt_dict.get('mo').lower() not in ('in', 'mm'):
+ raise ValueError('Mode may be mm or in')
+ elif stmt_dict.get('mo').lower() == 'in':
+ mo = 'inch'
+ else:
+ mo = 'metric'
+ return cls(param, mo)
+
+ def __init__(self, param, mo):
+ """ Initialize MOParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter.
+
+ mo : string
+ Measurement units. May be either 'inch' or 'metric'
+
+ Returns
+ -------
+ ParamStmt : MOParamStmt
+ Initialized MOParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.mode = mo
+
+ def to_gerber(self, settings=None):
+ mode = 'MM' if self.mode == 'metric' else 'IN'
+ return '%MO{0}*%'.format(mode)
+
+ def to_inch(self):
+ self.mode = 'inch'
+
+ def to_metric(self):
+ self.mode = 'metric'
+
+ def __str__(self):
+ mode_str = 'millimeters' if self.mode == 'metric' else 'inches'
+ return ('<Mode: %s>' % mode_str)
+
+
+class LPParamStmt(ParamStmt):
+ """ LP - Gerber Level Polarity statement
+ """
+
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict['param']
+ lp = 'clear' if stmt_dict.get('lp') == 'C' else 'dark'
+ return cls(param, lp)
+
+ def __init__(self, param, lp):
+ """ Initialize LPParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter
+
+ lp : string
+ Level polarity. May be either 'clear' or 'dark'
+
+ Returns
+ -------
+ ParamStmt : LPParamStmt
+ Initialized LPParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.lp = lp
+
+ def to_gerber(self, settings=None):
+ lp = 'C' if self.lp == 'clear' else 'D'
+ return '%LP{0}*%'.format(lp)
+
+ def __str__(self):
+ return '<Level Polarity: %s>' % self.lp
+
+
+class ADParamStmt(ParamStmt):
+ """ AD - Gerber Aperture Definition Statement
+ """
+
+ @classmethod
+ def rect(cls, dcode, width, height, hole_diameter=None, hole_width=None, hole_height=None):
+ '''Create a rectangular aperture definition statement'''
+ if hole_diameter is not None and hole_diameter > 0:
+ return cls('AD', dcode, 'R', ([width, height, hole_diameter],))
+ elif (hole_width is not None and hole_width > 0
+ and hole_height is not None and hole_height > 0):
+ return cls('AD', dcode, 'R', ([width, height, hole_width, hole_height],))
+ return cls('AD', dcode, 'R', ([width, height],))
+
+ @classmethod
+ def circle(cls, dcode, diameter, hole_diameter=None, hole_width=None, hole_height=None):
+ '''Create a circular aperture definition statement'''
+ if hole_diameter is not None and hole_diameter > 0:
+ return cls('AD', dcode, 'C', ([diameter, hole_diameter],))
+ elif (hole_width is not None and hole_width > 0
+ and hole_height is not None and hole_height > 0):
+ return cls('AD', dcode, 'C', ([diameter, hole_width, hole_height],))
+ return cls('AD', dcode, 'C', ([diameter],))
+
+ @classmethod
+ def obround(cls, dcode, width, height, hole_diameter=None, hole_width=None, hole_height=None):
+ '''Create an obround aperture definition statement'''
+ if hole_diameter is not None and hole_diameter > 0:
+ return cls('AD', dcode, 'O', ([width, height, hole_diameter],))
+ elif (hole_width is not None and hole_width > 0
+ and hole_height is not None and hole_height > 0):
+ return cls('AD', dcode, 'O', ([width, height, hole_width, hole_height],))
+ return cls('AD', dcode, 'O', ([width, height],))
+
+ @classmethod
+ def polygon(cls, dcode, diameter, num_vertices, rotation, hole_diameter=None, hole_width=None, hole_height=None):
+ '''Create a polygon aperture definition statement'''
+ if hole_diameter is not None and hole_diameter > 0:
+ return cls('AD', dcode, 'P', ([diameter, num_vertices, rotation, hole_diameter],))
+ elif (hole_width is not None and hole_width > 0
+ and hole_height is not None and hole_height > 0):
+ return cls('AD', dcode, 'P', ([diameter, num_vertices, rotation, hole_width, hole_height],))
+ return cls('AD', dcode, 'P', ([diameter, num_vertices, rotation],))
+
+
+ @classmethod
+ def macro(cls, dcode, name):
+ return cls('AD', dcode, name, '')
+
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict.get('param')
+ d = int(stmt_dict.get('d'))
+ shape = stmt_dict.get('shape')
+ modifiers = stmt_dict.get('modifiers')
+ return cls(param, d, shape, modifiers)
+
+ def __init__(self, param, d, shape, modifiers):
+ """ Initialize ADParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter code
+
+ d : int
+ Aperture D-code
+
+ shape : string
+ aperture name
+
+ modifiers : list of lists of floats
+ Shape modifiers
+
+ Returns
+ -------
+ ParamStmt : ADParamStmt
+ Initialized ADParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.d = d
+ self.shape = shape
+ if isinstance(modifiers, tuple):
+ self.modifiers = modifiers
+ elif modifiers:
+ self.modifiers = [tuple([float(x) for x in m.split("X") if len(x)])
+ for m in modifiers.split(",") if len(m)]
+ else:
+ self.modifiers = [tuple()]
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ self.modifiers = [tuple([inch(x) for x in modifier])
+ for modifier in self.modifiers]
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ self.modifiers = [tuple([metric(x) for x in modifier])
+ for modifier in self.modifiers]
+
+ def to_gerber(self, settings=None):
+ if any(self.modifiers):
+ return '%ADD{0}{1},{2}*%'.format(self.d, self.shape, ','.join(['X'.join(["%.4g" % x for x in modifier]) for modifier in self.modifiers]))
+ else:
+ return '%ADD{0}{1}*%'.format(self.d, self.shape)
+
+ def __str__(self):
+ if self.shape == 'C':
+ shape = 'circle'
+ elif self.shape == 'R':
+ shape = 'rectangle'
+ elif self.shape == 'O':
+ shape = 'obround'
+ else:
+ shape = self.shape
+
+ return '<Aperture Definition: %d: %s>' % (self.d, shape)
+
+
+class AMParamStmt(ParamStmt):
+ """ AM - Aperture Macro Statement
+ """
+
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ return cls(**stmt_dict)
+
+ def __init__(self, param, name, macro):
+ """ Initialize AMParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter code
+
+ name : string
+ Aperture macro name
+
+ macro : string
+ Aperture macro string
+
+ Returns
+ -------
+ ParamStmt : AMParamStmt
+ Initialized AMParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.name = name
+ self.macro = macro
+
+ self.instructions = self.read(macro)
+ self.primitives = []
+
+ def read(self, macro):
+ return read_macro(macro)
+
+ def build(self, modifiers=[[]]):
+ self.primitives = []
+
+ for primitive in eval_macro(self.instructions, modifiers[0]):
+ if primitive[0] == '0':
+ self.primitives.append(AMCommentPrimitive.from_gerber(primitive))
+ elif primitive[0] == '1':
+ self.primitives.append(AMCirclePrimitive.from_gerber(primitive))
+ elif primitive[0:2] in ('2,', '20'):
+ self.primitives.append(AMVectorLinePrimitive.from_gerber(primitive))
+ elif primitive[0:2] == '21':
+ self.primitives.append(AMCenterLinePrimitive.from_gerber(primitive))
+ elif primitive[0:2] == '22':
+ self.primitives.append(AMLowerLeftLinePrimitive.from_gerber(primitive))
+ elif primitive[0] == '4':
+ self.primitives.append(AMOutlinePrimitive.from_gerber(primitive))
+ elif primitive[0] == '5':
+ self.primitives.append(AMPolygonPrimitive.from_gerber(primitive))
+ elif primitive[0] == '6':
+ self.primitives.append(AMMoirePrimitive.from_gerber(primitive))
+ elif primitive[0] == '7':
+ self.primitives.append(
+ AMThermalPrimitive.from_gerber(primitive))
+ else:
+ self.primitives.append(
+ AMUnsupportPrimitive.from_gerber(primitive))
+
+ return AMGroup(self.primitives, stmt=self, units=self.units)
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ for primitive in self.primitives:
+ primitive.to_inch()
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ for primitive in self.primitives:
+ primitive.to_metric()
+
+ def to_gerber(self, settings=None):
+ return '%AM{0}*{1}%'.format(self.name, "".join([primitive.to_gerber() for primitive in self.primitives]))
+
+ def __str__(self):
+ return '<Aperture Macro %s: %s>' % (self.name, self.macro)
+
+
+class ASParamStmt(ParamStmt):
+ """ AS - Axis Select. (Deprecated)
+ """
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict.get('param')
+ mode = stmt_dict.get('mode')
+ return cls(param, mode)
+
+ def __init__(self, param, mode):
+ """ Initialize ASParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter string.
+
+ mode : string
+ Axis select. May be either 'AXBY' or 'AYBX'
+
+ Returns
+ -------
+ ParamStmt : ASParamStmt
+ Initialized ASParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.mode = mode
+
+ def to_gerber(self, settings=None):
+ return '%AS{0}*%'.format(self.mode)
+
+ def __str__(self):
+ return ('<Axis Select: %s>' % self.mode)
+
+
+class INParamStmt(ParamStmt):
+ """ IN - Image Name Statement (Deprecated)
+ """
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ return cls(**stmt_dict)
+
+ def __init__(self, param, name):
+ """ Initialize INParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter code
+
+ name : string
+ Image name
+
+ Returns
+ -------
+ ParamStmt : INParamStmt
+ Initialized INParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.name = name
+
+ def to_gerber(self, settings=None):
+ return '%IN{0}*%'.format(self.name)
+
+ def __str__(self):
+ return '<Image Name: %s>' % self.name
+
+
+class IPParamStmt(ParamStmt):
+ """ IP - Gerber Image Polarity Statement. (Deprecated)
+ """
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict.get('param')
+ ip = 'positive' if stmt_dict.get('ip') == 'POS' else 'negative'
+ return cls(param, ip)
+
+ def __init__(self, param, ip):
+ """ Initialize IPParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter string.
+
+ ip : string
+ Image polarity. May be either'positive' or 'negative'
+
+ Returns
+ -------
+ ParamStmt : IPParamStmt
+ Initialized IPParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.ip = ip
+
+ def to_gerber(self, settings=None):
+ ip = 'POS' if self.ip == 'positive' else 'NEG'
+ return '%IP{0}*%'.format(ip)
+
+ def __str__(self):
+ return ('<Image Polarity: %s>' % self.ip)
+
+
+class IRParamStmt(ParamStmt):
+ """ IR - Image Rotation Param (Deprecated)
+ """
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ angle = int(stmt_dict['angle'])
+ return cls(stmt_dict['param'], angle)
+
+ def __init__(self, param, angle):
+ """ Initialize IRParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter code
+
+ angle : int
+ Image angle
+
+ Returns
+ -------
+ ParamStmt : IRParamStmt
+ Initialized IRParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.angle = angle
+
+ def to_gerber(self, settings=None):
+ return '%IR{0}*%'.format(self.angle)
+
+ def __str__(self):
+ return '<Image Angle: %s>' % self.angle
+
+
+class MIParamStmt(ParamStmt):
+ """ MI - Image Mirror Param (Deprecated)
+ """
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict.get('param')
+ a = int(stmt_dict.get('a', 0))
+ b = int(stmt_dict.get('b', 0))
+ return cls(param, a, b)
+
+ def __init__(self, param, a, b):
+ """ Initialize MIParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter code
+
+ a : int
+ Mirror for A output devices axis (0=disabled, 1=mirrored)
+
+ b : int
+ Mirror for B output devices axis (0=disabled, 1=mirrored)
+
+ Returns
+ -------
+ ParamStmt : MIParamStmt
+ Initialized MIParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.a = a
+ self.b = b
+
+ def to_gerber(self, settings=None):
+ ret = "%MI"
+ if self.a is not None:
+ ret += "A{0}".format(self.a)
+ if self.b is not None:
+ ret += "B{0}".format(self.b)
+ ret += "*%"
+ return ret
+
+ def __str__(self):
+ return '<Image Mirror: A=%d B=%d>' % (self.a, self.b)
+
+
+class OFParamStmt(ParamStmt):
+ """ OF - Gerber Offset statement (Deprecated)
+ """
+
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict.get('param')
+ a = float(stmt_dict.get('a', 0))
+ b = float(stmt_dict.get('b', 0))
+ return cls(param, a, b)
+
+ def __init__(self, param, a, b):
+ """ Initialize OFParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter
+
+ a : float
+ Offset along the output device A axis
+
+ b : float
+ Offset along the output device B axis
+
+ Returns
+ -------
+ ParamStmt : OFParamStmt
+ Initialized OFParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.a = a
+ self.b = b
+
+ def to_gerber(self, settings=None):
+ ret = '%OF'
+ if self.a is not None:
+ ret += 'A' + decimal_string(self.a, precision=5)
+ if self.b is not None:
+ ret += 'B' + decimal_string(self.b, precision=5)
+ return ret + '*%'
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ if self.a is not None:
+ self.a = inch(self.a)
+ if self.b is not None:
+ self.b = inch(self.b)
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ if self.a is not None:
+ self.a = metric(self.a)
+ if self.b is not None:
+ self.b = metric(self.b)
+
+ def offset(self, x_offset=0, y_offset=0):
+ if self.a is not None:
+ self.a += x_offset
+ if self.b is not None:
+ self.b += y_offset
+
+ def __str__(self):
+ offset_str = ''
+ if self.a is not None:
+ offset_str += ('X: %f ' % self.a)
+ if self.b is not None:
+ offset_str += ('Y: %f ' % self.b)
+ return ('<Offset: %s>' % offset_str)
+
+
+class SFParamStmt(ParamStmt):
+ """ SF - Scale Factor Param (Deprecated)
+ """
+
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ param = stmt_dict.get('param')
+ a = float(stmt_dict.get('a', 1))
+ b = float(stmt_dict.get('b', 1))
+ return cls(param, a, b)
+
+ def __init__(self, param, a, b):
+ """ Initialize OFParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter
+
+ a : float
+ Scale factor for the output device A axis
+
+ b : float
+ Scale factor for the output device B axis
+
+ Returns
+ -------
+ ParamStmt : SFParamStmt
+ Initialized SFParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.a = a
+ self.b = b
+
+ def to_gerber(self, settings=None):
+ ret = '%SF'
+ if self.a is not None:
+ ret += 'A' + decimal_string(self.a, precision=5)
+ if self.b is not None:
+ ret += 'B' + decimal_string(self.b, precision=5)
+ return ret + '*%'
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ if self.a is not None:
+ self.a = inch(self.a)
+ if self.b is not None:
+ self.b = inch(self.b)
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ if self.a is not None:
+ self.a = metric(self.a)
+ if self.b is not None:
+ self.b = metric(self.b)
+
+ def offset(self, x_offset=0, y_offset=0):
+ if self.a is not None:
+ self.a += x_offset
+ if self.b is not None:
+ self.b += y_offset
+
+ def __str__(self):
+ scale_factor = ''
+ if self.a is not None:
+ scale_factor += ('X: %g ' % self.a)
+ if self.b is not None:
+ scale_factor += ('Y: %g' % self.b)
+ return ('<Scale Factor: %s>' % scale_factor)
+
+
+class LNParamStmt(ParamStmt):
+ """ LN - Level Name Statement (Deprecated)
+ """
+ @classmethod
+ def from_dict(cls, stmt_dict):
+ return cls(**stmt_dict)
+
+ def __init__(self, param, name):
+ """ Initialize LNParamStmt class
+
+ Parameters
+ ----------
+ param : string
+ Parameter code
+
+ name : string
+ Level name
+
+ Returns
+ -------
+ ParamStmt : LNParamStmt
+ Initialized LNParamStmt class.
+
+ """
+ ParamStmt.__init__(self, param)
+ self.name = name
+
+ def to_gerber(self, settings=None):
+ return '%LN{0}*%'.format(self.name)
+
+ def __str__(self):
+ return '<Level Name: %s>' % self.name
+
+
+class DeprecatedStmt(Statement):
+ """ Unimportant deprecated statement, will be parsed but not emitted.
+ """
+ @classmethod
+ def from_gerber(cls, line):
+ return cls(line)
+
+ def __init__(self, line):
+ """ Initialize DeprecatedStmt class
+
+ Parameters
+ ----------
+ line : string
+ Deprecated statement text
+
+ Returns
+ -------
+ DeprecatedStmt
+ Initialized DeprecatedStmt class.
+
+ """
+ Statement.__init__(self, "DEPRECATED")
+ self.line = line
+
+ def to_gerber(self, settings=None):
+ return self.line
+
+ def __str__(self):
+ return '<Deprecated Statement: \'%s\'>' % self.line
+
+
+class CoordStmt(Statement):
+ """ Coordinate Data Block
+ """
+
+ OP_DRAW = 'D01'
+ OP_MOVE = 'D02'
+ OP_FLASH = 'D03'
+
+ FUNC_LINEAR = 'G01'
+ FUNC_ARC_CW = 'G02'
+ FUNC_ARC_CCW = 'G03'
+
+ @classmethod
+ def from_dict(cls, stmt_dict, settings):
+ function = stmt_dict['function']
+ x = stmt_dict.get('x')
+ y = stmt_dict.get('y')
+ i = stmt_dict.get('i')
+ j = stmt_dict.get('j')
+ op = stmt_dict.get('op')
+
+ if x is not None:
+ x = parse_gerber_value(stmt_dict.get('x'), settings.format,
+ settings.zero_suppression)
+ if y is not None:
+ y = parse_gerber_value(stmt_dict.get('y'), settings.format,
+ settings.zero_suppression)
+ if i is not None:
+ i = parse_gerber_value(stmt_dict.get('i'), settings.format,
+ settings.zero_suppression)
+ if j is not None:
+ j = parse_gerber_value(stmt_dict.get('j'), settings.format,
+ settings.zero_suppression)
+ return cls(function, x, y, i, j, op, settings)
+
+ @classmethod
+ def move(cls, func, point):
+ if point:
+ return cls(func, point[0], point[1], None, None, CoordStmt.OP_MOVE, None)
+ # No point specified, so just write the function. This is normally for ending a region (D02*)
+ return cls(func, None, None, None, None, CoordStmt.OP_MOVE, None)
+
+ @classmethod
+ def line(cls, func, point):
+ return cls(func, point[0], point[1], None, None, CoordStmt.OP_DRAW, None)
+
+ @classmethod
+ def mode(cls, func):
+ return cls(func, None, None, None, None, None, None)
+
+ @classmethod
+ def arc(cls, func, point, center):
+ return cls(func, point[0], point[1], center[0], center[1], CoordStmt.OP_DRAW, None)
+
+ @classmethod
+ def flash(cls, point):
+ if point:
+ return cls(None, point[0], point[1], None, None, CoordStmt.OP_FLASH, None)
+ else:
+ return cls(None, None, None, None, None, CoordStmt.OP_FLASH, None)
+
+ def __init__(self, function, x, y, i, j, op, settings):
+ """ Initialize CoordStmt class
+
+ Parameters
+ ----------
+ function : string
+ function
+
+ x : float
+ X coordinate
+
+ y : float
+ Y coordinate
+
+ i : float
+ Coordinate offset in the X direction
+
+ j : float
+ Coordinate offset in the Y direction
+
+ op : string
+ Operation code
+
+ settings : dict {'zero_suppression', 'format'}
+ Gerber file coordinate format
+
+ Returns
+ -------
+ Statement : CoordStmt
+ Initialized CoordStmt class.
+
+ """
+ Statement.__init__(self, "COORD")
+ self.function = function
+ self.x = x
+ self.y = y
+ self.i = i
+ self.j = j
+ self.op = op
+
+ def to_gerber(self, settings=None):
+ ret = ''
+ if self.function:
+ ret += self.function
+ if self.x is not None:
+ ret += 'X{0}'.format(write_gerber_value(self.x, settings.format,
+ settings.zero_suppression))
+ if self.y is not None:
+ ret += 'Y{0}'.format(write_gerber_value(self.y, settings.format,
+ settings.zero_suppression))
+ if self.i is not None:
+ ret += 'I{0}'.format(write_gerber_value(self.i, settings.format,
+ settings.zero_suppression))
+ if self.j is not None:
+ ret += 'J{0}'.format(write_gerber_value(self.j, settings.format,
+ settings.zero_suppression))
+ if self.op:
+ ret += self.op
+ return ret + '*'
+
+ def to_inch(self):
+ if self.units == 'metric':
+ self.units = 'inch'
+ if self.x is not None:
+ self.x = inch(self.x)
+ if self.y is not None:
+ self.y = inch(self.y)
+ if self.i is not None:
+ self.i = inch(self.i)
+ if self.j is not None:
+ self.j = inch(self.j)
+ if self.function == "G71":
+ self.function = "G70"
+
+ def to_metric(self):
+ if self.units == 'inch':
+ self.units = 'metric'
+ if self.x is not None:
+ self.x = metric(self.x)
+ if self.y is not None:
+ self.y = metric(self.y)
+ if self.i is not None:
+ self.i = metric(self.i)
+ if self.j is not None:
+ self.j = metric(self.j)
+ if self.function == "G70":
+ self.function = "G71"
+
+ def offset(self, x_offset=0, y_offset=0):
+ if self.x is not None:
+ self.x += x_offset
+ if self.y is not None:
+ self.y += y_offset
+ if self.i is not None:
+ self.i += x_offset
+ if self.j is not None:
+ self.j += y_offset
+
+ def __str__(self):
+ coord_str = ''
+ if self.function:
+ coord_str += 'Fn: %s ' % self.function
+ if self.x is not None:
+ coord_str += 'X: %g ' % self.x
+ if self.y is not None:
+ coord_str += 'Y: %g ' % self.y
+ if self.i is not None:
+ coord_str += 'I: %g ' % self.i
+ if self.j is not None:
+ coord_str += 'J: %g ' % self.j
+ if self.op:
+ if self.op == 'D01':
+ op = 'Lights On'
+ elif self.op == 'D02':
+ op = 'Lights Off'
+ elif self.op == 'D03':
+ op = 'Flash'
+ else:
+ op = self.op
+ coord_str += 'Op: %s' % op
+
+ return '<Coordinate Statement: %s>' % coord_str
+
+ @property
+ def only_function(self):
+ """
+ Returns if the statement only set the function.
+ """
+
+ # TODO I would like to refactor this so that the function is handled separately and then
+ # TODO this isn't required
+ return self.function != None and self.op == None and self.x == None and self.y == None and self.i == None and self.j == None
+
+
+class ApertureStmt(Statement):
+ """ Aperture Statement
+ """
+
+ def __init__(self, d, deprecated=None):
+ Statement.__init__(self, "APERTURE")
+ self.d = int(d)
+ self.deprecated = True if deprecated is not None and deprecated is not False else False
+
+ def to_gerber(self, settings=None):
+ if self.deprecated:
+ return 'G54D{0}*'.format(self.d)
+ else:
+ return 'D{0}*'.format(self.d)
+
+ def __str__(self):
+ return '<Aperture: %d>' % self.d
+
+
+class CommentStmt(Statement):
+ """ Comment Statment
+ """
+
+ def __init__(self, comment):
+ Statement.__init__(self, "COMMENT")
+ self.comment = comment if comment is not None else ""
+
+ def to_gerber(self, settings=None):
+ return 'G04{0}*'.format(self.comment)
+
+ def __str__(self):
+ return '<Comment: %s>' % self.comment
+
+
+class EofStmt(Statement):
+ """ EOF Statement
+ """
+
+ def __init__(self):
+ Statement.__init__(self, "EOF")
+
+ def to_gerber(self, settings=None):
+ return 'M02*'
+
+ def __str__(self):
+ return '<EOF Statement>'
+
+
+class QuadrantModeStmt(Statement):
+
+ @classmethod
+ def single(cls):
+ return cls('single-quadrant')
+
+ @classmethod
+ def multi(cls):
+ return cls('multi-quadrant')
+
+ @classmethod
+ def from_gerber(cls, line):
+ if 'G74' not in line and 'G75' not in line:
+ raise ValueError('%s is not a valid quadrant mode statement'
+ % line)
+ return (cls('single-quadrant') if line[:3] == 'G74'
+ else cls('multi-quadrant'))
+
+ def __init__(self, mode):
+ super(QuadrantModeStmt, self).__init__('QuadrantMode')
+ mode = mode.lower()
+ if mode not in ['single-quadrant', 'multi-quadrant']:
+ raise ValueError('Quadrant mode must be "single-quadrant" \
+ or "multi-quadrant"')
+ self.mode = mode
+
+ def to_gerber(self, settings=None):
+ return 'G74*' if self.mode == 'single-quadrant' else 'G75*'
+
+
+class RegionModeStmt(Statement):
+
+ @classmethod
+ def from_gerber(cls, line):
+ if 'G36' not in line and 'G37' not in line:
+ raise ValueError('%s is not a valid region mode statement' % line)
+ return (cls('on') if line[:3] == 'G36' else cls('off'))
+
+ @classmethod
+ def on(cls):
+ return cls('on')
+
+ @classmethod
+ def off(cls):
+ return cls('off')
+
+ def __init__(self, mode):
+ super(RegionModeStmt, self).__init__('RegionMode')
+ mode = mode.lower()
+ if mode not in ['on', 'off']:
+ raise ValueError('Valid modes are "on" or "off"')
+ self.mode = mode
+
+ def to_gerber(self, settings=None):
+ return 'G36*' if self.mode == 'on' else 'G37*'
+
+
+class UnknownStmt(Statement):
+ """ Unknown Statement
+ """
+
+ def __init__(self, line):
+ Statement.__init__(self, "UNKNOWN")
+ self.line = line
+
+ def to_gerber(self, settings=None):
+ return self.line
+
+ def __str__(self):
+ return '<Unknown Statement: \'%s\'>' % self.line
diff --git a/gerber/ipc356.py b/gerber/ipc356.py
new file mode 100644
index 0000000..9337a99
--- /dev/null
+++ b/gerber/ipc356.py
@@ -0,0 +1,485 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+# Modified from parser.py by Paulo Henrique Silva <ph.silva@gmail.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import math
+import re
+from .cam import CamFile, FileSettings
+from .primitives import TestRecord
+
+# Net Name Variables
+_NNAME = re.compile(r'^NNAME\d+$')
+
+# Board Edge Coordinates
+_COORD = re.compile(r'X?(?P<x>[\d\s]*)?Y?(?P<y>[\d\s]*)?')
+
+_SM_FIELD = {
+ '0': 'none',
+ '1': 'primary side',
+ '2': 'secondary side',
+ '3': 'both'}
+
+
+def read(filename):
+ """ Read data from filename and return an IPCNetlist
+ Parameters
+ ----------
+ filename : string
+ Filename of file to parse
+
+ Returns
+ -------
+ file : :class:`gerber.ipc356.IPCNetlist`
+ An IPCNetlist object created from the specified file.
+
+ """
+ # File object should use settings from source file by default.
+ return IPCNetlist.from_file(filename)
+
+
+def loads(data, filename=None):
+ """ Generate an IPCNetlist object from IPC-D-356 data in memory
+
+ Parameters
+ ----------
+ data : string
+ string containing netlist file contents
+
+ filename : string, optional
+ string containing the filename of the data source
+
+ Returns
+ -------
+ file : :class:`gerber.ipc356.IPCNetlist`
+ An IPCNetlist created from the specified file.
+ """
+ return IPCNetlistParser().parse_raw(data, filename)
+
+
+class IPCNetlist(CamFile):
+
+ @classmethod
+ def from_file(cls, filename):
+ parser = IPCNetlistParser()
+ return parser.parse(filename)
+
+ def __init__(self, statements, settings, primitives=None, filename=None):
+ self.statements = statements
+ self.units = settings.units
+ self.angle_units = settings.angle_units
+ self.primitives = [TestRecord((rec.x_coord, rec.y_coord), rec.net_name,
+ rec.access) for rec in self.test_records]
+ self.filename = filename
+
+ @property
+ def settings(self):
+ return FileSettings(units=self.units, angle_units=self.angle_units)
+
+ @property
+ def comments(self):
+ return [record for record in self.statements
+ if isinstance(record, IPC356_Comment)]
+
+ @property
+ def parameters(self):
+ return [record for record in self.statements
+ if isinstance(record, IPC356_Parameter)]
+
+ @property
+ def test_records(self):
+ return [record for record in self.statements
+ if isinstance(record, IPC356_TestRecord)]
+
+ @property
+ def nets(self):
+ nets = []
+ for net in list(set([rec.net_name for rec in self.test_records
+ if rec.net_name is not None])):
+ adjacent_nets = set()
+ for record in self.adjacency_records:
+ if record.net == net:
+ adjacent_nets = adjacent_nets.update(record.adjacent_nets)
+ elif net in record.adjacent_nets:
+ adjacent_nets.add(record.net)
+ nets.append(IPC356_Net(net, adjacent_nets))
+ return nets
+
+ @property
+ def components(self):
+ return list(set([rec.id for rec in self.test_records
+ if rec.id is not None and rec.id != 'VIA']))
+
+ @property
+ def vias(self):
+ return [rec.id for rec in self.test_records if rec.id == 'VIA']
+
+ @property
+ def outlines(self):
+ return [stmt for stmt in self.statements
+ if isinstance(stmt, IPC356_Outline)]
+
+ @property
+ def adjacency_records(self):
+ return [record for record in self.statements
+ if isinstance(record, IPC356_Adjacency)]
+
+ def render(self, ctx, layer='both', filename=None):
+ for p in self.primitives:
+ if layer == 'both' and p.layer in ('top', 'bottom', 'both'):
+ ctx.render(p)
+ elif layer == 'top' and p.layer in ('top', 'both'):
+ ctx.render(p)
+ elif layer == 'bottom' and p.layer in ('bottom', 'both'):
+ ctx.render(p)
+ if filename is not None:
+ ctx.dump(filename)
+
+
+class IPCNetlistParser(object):
+ # TODO: Allow multi-line statements (e.g. Altium board edge)
+
+ def __init__(self):
+ self.units = 'inch'
+ self.angle_units = 'degrees'
+ self.statements = []
+ self.nnames = {}
+
+ @property
+ def settings(self):
+ return FileSettings(units=self.units, angle_units=self.angle_units)
+
+ def parse(self, filename):
+ with open(filename, 'rU') as f:
+ data = f.read()
+ return self.parse_raw(data, filename)
+
+ def parse_raw(self, data, filename=None):
+ oldline = ''
+ for line in data.splitlines():
+ # Check for existing multiline data...
+ if oldline != '':
+ if len(line) and line[0] == '0':
+ oldline = oldline.rstrip('\r\n') + line[3:].rstrip()
+ else:
+ self._parse_line(oldline)
+ oldline = line
+ else:
+ oldline = line
+ self._parse_line(oldline)
+
+ return IPCNetlist(self.statements, self.settings, filename=filename)
+
+ def _parse_line(self, line):
+ if not len(line):
+ return
+ if line[0] == 'C':
+ # Comment
+ self.statements.append(IPC356_Comment.from_line(line))
+
+ elif line[0] == 'P':
+ # Parameter
+ p = IPC356_Parameter.from_line(line)
+ if p.parameter == 'UNITS':
+ if p.value in ('CUST', 'CUST 0'):
+ self.units = 'inch'
+ self.angle_units = 'degrees'
+ elif p.value == 'CUST 1':
+ self.units = 'metric'
+ self.angle_units = 'degrees'
+ elif p.value == 'CUST 2':
+ self.units = 'inch'
+ self.angle_units = 'radians'
+ self.statements.append(p)
+ if _NNAME.match(p.parameter):
+ # Add to list of net name variables
+ self.nnames[p.parameter] = p.value
+
+ elif line[0] == '9':
+ self.statements.append(IPC356_EndOfFile())
+
+ elif line[0:3] in ('317', '327', '367'):
+ # Test Record
+ record = IPC356_TestRecord.from_line(line, self.settings)
+
+ # Substitute net name variables
+ net = record.net_name
+ if (_NNAME.match(net) and net in self.nnames.keys()):
+ record.net_name = self.nnames[record.net_name]
+ self.statements.append(record)
+
+ elif line[0:3] == '378':
+ # Conductor
+ self.statements.append(
+ IPC356_Conductor.from_line(
+ line, self.settings))
+
+ elif line[0:3] == '379':
+ # Net Adjacency
+ self.statements.append(IPC356_Adjacency.from_line(line))
+
+ elif line[0:3] == '389':
+ # Outline
+ self.statements.append(
+ IPC356_Outline.from_line(
+ line, self.settings))
+
+
+class IPC356_Comment(object):
+
+ @classmethod
+ def from_line(cls, line):
+ if line[0] != 'C':
+ raise ValueError('Not a valid comment statment')
+ comment = line[2:].strip()
+ return cls(comment)
+
+ def __init__(self, comment):
+ self.comment = comment
+
+ def __repr__(self):
+ return '<IPC-D-356 Comment: %s>' % self.comment
+
+
+class IPC356_Parameter(object):
+
+ @classmethod
+ def from_line(cls, line):
+ if line[0] != 'P':
+ raise ValueError('Not a valid parameter statment')
+ splitline = line[2:].split()
+ parameter = splitline[0].strip()
+ value = ' '.join(splitline[1:]).strip()
+ return cls(parameter, value)
+
+ def __init__(self, parameter, value):
+ self.parameter = parameter
+ self.value = value
+
+ def __repr__(self):
+ return '<IPC-D-356 Parameter: %s=%s>' % (self.parameter, self.value)
+
+
+class IPC356_TestRecord(object):
+
+ @classmethod
+ def from_line(cls, line, settings):
+ offset = 0
+ units = settings.units
+ angle = settings.angle_units
+ feature_types = {'1': 'through-hole', '2': 'smt',
+ '3': 'tooling-feature', '4': 'tooling-hole',
+ '6': 'non-plated-tooling-hole'}
+ access = ['both', 'top', 'layer2', 'layer3', 'layer4', 'layer5',
+ 'layer6', 'layer7', 'bottom']
+ record = {}
+ line = line.strip()
+ if line[0] != '3':
+ raise ValueError('Not a valid test record statment')
+ record['feature_type'] = feature_types[line[1]]
+
+ end = len(line) - 1 if len(line) < 18 else 17
+ record['net_name'] = line[3:end].strip()
+
+ if len(line) >= 27 and line[26] != '-':
+ offset = line[26:].find('-')
+ offset = 0 if offset == -1 else offset
+ end = len(line) - 1 if len(line) < (27 + offset) else (26 + offset)
+ record['id'] = line[20:end].strip()
+
+ end = len(line) - 1 if len(line) < (32 + offset) else (31 + offset)
+ record['pin'] = (line[27 + offset:end].strip() if line[27 + offset:end].strip() != ''
+ else None)
+
+ record['location'] = 'middle' if line[31 + offset] == 'M' else 'end'
+ if line[32 + offset] == 'D':
+ end = len(line) - 1 if len(line) < (38 + offset) else (37 + offset)
+ dia = int(line[33 + offset:end].strip())
+ record['hole_diameter'] = (dia * 0.0001 if units == 'inch'
+ else dia * 0.001)
+ if len(line) >= (38 + offset):
+ record['plated'] = (line[37 + offset] == 'P')
+
+ if len(line) >= (40 + offset):
+ end = len(line) - 1 if len(line) < (42 + offset) else (41 + offset)
+ record['access'] = access[int(line[39 + offset:end])]
+
+ if len(line) >= (43 + offset):
+ end = len(line) - 1 if len(line) < (50 + offset) else (49 + offset)
+ coord = int(line[42 + offset:end].strip())
+ record['x_coord'] = (coord * 0.0001 if units == 'inch'
+ else coord * 0.001)
+
+ if len(line) >= (51 + offset):
+ end = len(line) - 1 if len(line) < (58 + offset) else (57 + offset)
+ coord = int(line[50 + offset:end].strip())
+ record['y_coord'] = (coord * 0.0001 if units == 'inch'
+ else coord * 0.001)
+
+ if len(line) >= (59 + offset):
+ end = len(line) - 1 if len(line) < (63 + offset) else (62 + offset)
+ dim = line[58 + offset:end].strip()
+ if dim != '':
+ record['rect_x'] = (int(dim) * 0.0001 if units == 'inch'
+ else int(dim) * 0.001)
+
+ if len(line) >= (64 + offset):
+ end = len(line) - 1 if len(line) < (68 + offset) else (67 + offset)
+ dim = line[63 + offset:end].strip()
+ if dim != '':
+ record['rect_y'] = (int(dim) * 0.0001 if units == 'inch'
+ else int(dim) * 0.001)
+
+ if len(line) >= (69 + offset):
+ end = len(line) - 1 if len(line) < (72 + offset) else (71 + offset)
+ rot = line[68 + offset:end].strip()
+ if rot != '':
+ record['rect_rotation'] = (int(rot) if angle == 'degrees'
+ else math.degrees(rot))
+
+ if len(line) >= (74 + offset):
+ end = 74 + offset
+ sm_info = line[73 + offset:end].strip()
+ record['soldermask_info'] = _SM_FIELD.get(sm_info)
+
+ if len(line) >= (76 + offset):
+ end = len(line) - 1 if len(line) < (80 + offset) else 79 + offset
+ record['optional_info'] = line[75 + offset:end]
+
+ return cls(**record)
+
+ def __init__(self, **kwargs):
+ for key in kwargs:
+ setattr(self, key, kwargs[key])
+
+ def __repr__(self):
+ return '<IPC-D-356 %s Test Record: %s>' % (self.net_name,
+ self.feature_type)
+
+
+class IPC356_Outline(object):
+
+ @classmethod
+ def from_line(cls, line, settings):
+ type = line[3:17].strip()
+ scale = 0.0001 if settings.units == 'inch' else 0.001
+ points = []
+ x = 0
+ y = 0
+ coord_strings = line.strip().split()[1:]
+ for coord in coord_strings:
+ coord_dict = _COORD.match(coord).groupdict()
+ x = int(coord_dict['x']) if coord_dict['x'] is not '' else x
+ y = int(coord_dict['y']) if coord_dict['y'] is not '' else y
+ points.append((x * scale, y * scale))
+ return cls(type, points)
+
+ def __init__(self, type, points):
+ self.type = type
+ self.points = points
+
+ def __repr__(self):
+ return '<IPC-D-356 %s Outline Definition>' % self.type
+
+
+class IPC356_Conductor(object):
+
+ @classmethod
+ def from_line(cls, line, settings):
+ if line[0:3] != '378':
+ raise ValueError('Not a valid IPC-D-356 Conductor statement')
+
+ scale = 0.0001 if settings.units == 'inch' else 0.001
+ net_name = line[3:17].strip()
+ layer = int(line[19:21])
+
+ # Parse out aperture definiting
+ raw_aperture = line[22:].split()[0]
+ aperture_dict = _COORD.match(raw_aperture).groupdict()
+ x = 0
+ y = 0
+ x = int(aperture_dict['x']) * \
+ scale if aperture_dict['x'] is not '' else None
+ y = int(aperture_dict['y']) * \
+ scale if aperture_dict['y'] is not '' else None
+ aperture = (x, y)
+
+ # Parse out conductor shapes
+ shapes = []
+ coord_list = ' '.join(line[22:].split()[1:])
+ raw_shapes = coord_list.split('*')
+ for rshape in raw_shapes:
+ x = 0
+ y = 0
+ shape = []
+ coords = rshape.split()
+ for coord in coords:
+ coord_dict = _COORD.match(coord).groupdict()
+ x = int(coord_dict['x']) if coord_dict['x'] is not '' else x
+ y = int(coord_dict['y']) if coord_dict['y'] is not '' else y
+ shape.append((x * scale, y * scale))
+ shapes.append(tuple(shape))
+ return cls(net_name, layer, aperture, tuple(shapes))
+
+ def __init__(self, net_name, layer, aperture, shapes):
+ self.net_name = net_name
+ self.layer = layer
+ self.aperture = aperture
+ self.shapes = shapes
+
+ def __repr__(self):
+ return '<IPC-D-356 %s Conductor Record>' % self.net_name
+
+
+class IPC356_Adjacency(object):
+
+ @classmethod
+ def from_line(cls, line):
+ if line[0:3] != '379':
+ raise ValueError('Not a valid IPC-D-356 Conductor statement')
+ nets = line[3:].strip().split()
+
+ return cls(nets[0], nets[1:])
+
+ def __init__(self, net, adjacent_nets):
+ self.net = net
+ self.adjacent_nets = adjacent_nets
+
+ def __repr__(self):
+ return '<IPC-D-356 %s Adjacency Record>' % self.net
+
+
+class IPC356_EndOfFile(object):
+
+ def __init__(self):
+ pass
+
+ def to_netlist(self):
+ return '999'
+
+ def __repr__(self):
+ return '<IPC-D-356 EOF>'
+
+
+class IPC356_Net(object):
+
+ def __init__(self, name, adjacent_nets):
+ self.name = name
+ self.adjacent_nets = set(
+ adjacent_nets) if adjacent_nets is not None else set()
+
+ def __repr__(self):
+ return '<IPC-D-356 Net %s>' % self.name
diff --git a/gerber/layers.py b/gerber/layers.py
new file mode 100644
index 0000000..69e1c0d
--- /dev/null
+++ b/gerber/layers.py
@@ -0,0 +1,295 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import re
+from collections import namedtuple
+
+from . import common
+from .excellon import ExcellonFile
+from .ipc356 import IPCNetlist
+
+
+Hint = namedtuple('Hint', 'layer ext name regex content')
+
+hints = [
+ Hint(layer='top',
+ ext=['gtl', 'cmp', 'top', ],
+ name=['art01', 'top', 'GTL', 'layer1', 'soldcom', 'comp', 'F.Cu', ],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='bottom',
+ ext=['gbl', 'sld', 'bot', 'sol', 'bottom', ],
+ name=['art02', 'bottom', 'bot', 'GBL', 'layer2', 'soldsold', 'B.Cu', ],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='internal',
+ ext=['in', 'gt1', 'gt2', 'gt3', 'gt4', 'gt5', 'gt6',
+ 'g1', 'g2', 'g3', 'g4', 'g5', 'g6', ],
+ name=['art', 'internal', 'pgp', 'pwr', 'gnd', 'ground',
+ 'gp1', 'gp2', 'gp3', 'gp4', 'gt5', 'gp6',
+ 'In1.Cu', 'In2.Cu', 'In3.Cu', 'In4.Cu',
+ 'group3', 'group4', 'group5', 'group6', 'group7', 'group8', ],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='topsilk',
+ ext=['gto', 'sst', 'plc', 'ts', 'skt', 'topsilk', ],
+ name=['sst01', 'topsilk', 'silk', 'slk', 'sst', 'F.SilkS'],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='bottomsilk',
+ ext=['gbo', 'ssb', 'pls', 'bs', 'skb', 'bottomsilk', ],
+ name=['bsilk', 'ssb', 'botsilk', 'bottomsilk', 'B.SilkS'],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='topmask',
+ ext=['gts', 'stc', 'tmk', 'smt', 'tr', 'topmask', ],
+ name=['sm01', 'cmask', 'tmask', 'mask1', 'maskcom', 'topmask',
+ 'mst', 'F.Mask', ],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='bottommask',
+ ext=['gbs', 'sts', 'bmk', 'smb', 'br', 'bottommask', ],
+ name=['sm', 'bmask', 'mask2', 'masksold', 'botmask', 'bottommask',
+ 'msb', 'B.Mask', ],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='toppaste',
+ ext=['gtp', 'tm', 'toppaste', ],
+ name=['sp01', 'toppaste', 'pst', 'F.Paste'],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='bottompaste',
+ ext=['gbp', 'bm', 'bottompaste', ],
+ name=['sp02', 'botpaste', 'bottompaste', 'psb', 'B.Paste', ],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='outline',
+ ext=['gko', 'outline', ],
+ name=['BDR', 'border', 'out', 'outline', 'Edge.Cuts', ],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='ipc_netlist',
+ ext=['ipc'],
+ name=[],
+ regex='',
+ content=[]
+ ),
+ Hint(layer='drawing',
+ ext=['fab'],
+ name=['assembly drawing', 'assembly', 'fabrication',
+ 'fab drawing', 'fab'],
+ regex='',
+ content=[]
+ ),
+]
+
+
+def layer_signatures(layer_class):
+ for hint in hints:
+ if hint.layer == layer_class:
+ return hint.ext + hint.name
+ return []
+
+
+def load_layer(filename):
+ return PCBLayer.from_cam(common.read(filename))
+
+
+def load_layer_data(data, filename=None):
+ return PCBLayer.from_cam(common.loads(data, filename))
+
+
+def guess_layer_class(filename):
+ try:
+ layer = guess_layer_class_by_content(filename)
+ if layer:
+ return layer
+ except:
+ pass
+
+ try:
+ directory, filename = os.path.split(filename)
+ name, ext = os.path.splitext(filename.lower())
+ for hint in hints:
+ if hint.regex:
+ if re.findall(hint.regex, filename, re.IGNORECASE):
+ return hint.layer
+
+ patterns = [r'^(\w*[.-])*{}([.-]\w*)?$'.format(x) for x in hint.name]
+ if ext[1:] in hint.ext or any(re.findall(p, name, re.IGNORECASE) for p in patterns):
+ return hint.layer
+ except:
+ pass
+ return 'unknown'
+
+
+def guess_layer_class_by_content(filename):
+ try:
+ file = open(filename, 'r')
+ for line in file:
+ for hint in hints:
+ if len(hint.content) > 0:
+ patterns = [r'^(.*){}(.*)$'.format(x) for x in hint.content]
+ if any(re.findall(p, line, re.IGNORECASE) for p in patterns):
+ return hint.layer
+ except:
+ pass
+
+ return False
+
+
+def sort_layers(layers, from_top=True):
+ layer_order = ['outline', 'toppaste', 'topsilk', 'topmask', 'top',
+ 'internal', 'bottom', 'bottommask', 'bottomsilk',
+ 'bottompaste']
+ append_after = ['drill', 'drawing']
+
+ output = []
+ drill_layers = [layer for layer in layers if layer.layer_class == 'drill']
+ internal_layers = list(sorted([layer for layer in layers
+ if layer.layer_class == 'internal']))
+
+ for layer_class in layer_order:
+ if layer_class == 'internal':
+ output += internal_layers
+ elif layer_class == 'drill':
+ output += drill_layers
+ else:
+ for layer in layers:
+ if layer.layer_class == layer_class:
+ output.append(layer)
+ if not from_top:
+ output = list(reversed(output))
+
+ for layer_class in append_after:
+ for layer in layers:
+ if layer.layer_class == layer_class:
+ output.append(layer)
+ return output
+
+
+class PCBLayer(object):
+ """ Base class for PCB Layers
+
+ Parameters
+ ----------
+ source : CAMFile
+ CAMFile representing the layer
+
+
+ Attributes
+ ----------
+ filename : string
+ Source Filename
+
+ """
+ @classmethod
+ def from_cam(cls, camfile):
+ filename = camfile.filename
+ layer_class = guess_layer_class(filename)
+ if isinstance(camfile, ExcellonFile) or (layer_class == 'drill'):
+ return DrillLayer.from_cam(camfile)
+ elif layer_class == 'internal':
+ return InternalLayer.from_cam(camfile)
+ if isinstance(camfile, IPCNetlist):
+ layer_class = 'ipc_netlist'
+ return cls(filename, layer_class, camfile)
+
+ def __init__(self, filename=None, layer_class=None, cam_source=None, **kwargs):
+ super(PCBLayer, self).__init__(**kwargs)
+ self.filename = filename
+ self.layer_class = layer_class
+ self.cam_source = cam_source
+ self.surface = None
+ self.primitives = cam_source.primitives if cam_source is not None else []
+
+ @property
+ def bounds(self):
+ if self.cam_source is not None:
+ return self.cam_source.bounds
+ else:
+ return None
+
+ def __repr__(self):
+ return '<PCBLayer: {}>'.format(self.layer_class)
+
+
+class DrillLayer(PCBLayer):
+ @classmethod
+ def from_cam(cls, camfile):
+ return cls(camfile.filename, camfile)
+
+ def __init__(self, filename=None, cam_source=None, layers=None, **kwargs):
+ super(DrillLayer, self).__init__(filename, 'drill', cam_source, **kwargs)
+ self.layers = layers if layers is not None else ['top', 'bottom']
+
+
+class InternalLayer(PCBLayer):
+
+ @classmethod
+ def from_cam(cls, camfile):
+ filename = camfile.filename
+ try:
+ order = int(re.search(r'\d+', filename).group())
+ except AttributeError:
+ order = 0
+ return cls(filename, camfile, order)
+
+ def __init__(self, filename=None, cam_source=None, order=0, **kwargs):
+ super(InternalLayer, self).__init__(filename, 'internal', cam_source, **kwargs)
+ self.order = order
+
+ def __eq__(self, other):
+ if not hasattr(other, 'order'):
+ raise TypeError()
+ return (self.order == other.order)
+
+ def __ne__(self, other):
+ if not hasattr(other, 'order'):
+ raise TypeError()
+ return (self.order != other.order)
+
+ def __gt__(self, other):
+ if not hasattr(other, 'order'):
+ raise TypeError()
+ return (self.order > other.order)
+
+ def __lt__(self, other):
+ if not hasattr(other, 'order'):
+ raise TypeError()
+ return (self.order < other.order)
+
+ def __ge__(self, other):
+ if not hasattr(other, 'order'):
+ raise TypeError()
+ return (self.order >= other.order)
+
+ def __le__(self, other):
+ if not hasattr(other, 'order'):
+ raise TypeError()
+ return (self.order <= other.order)
diff --git a/gerber/ncparam/allegro.py b/gerber/ncparam/allegro.py
new file mode 100644
index 0000000..a67bcf1
--- /dev/null
+++ b/gerber/ncparam/allegro.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2015 Garret Fick <garret@ficksworkshop.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Allegro File module
+====================
+**Excellon file classes**
+
+Extra parsers for allegro misc files that can be useful when the Excellon file doesn't contain parameter information
+"""
+
diff --git a/gerber/operations.py b/gerber/operations.py
new file mode 100644
index 0000000..d06876e
--- /dev/null
+++ b/gerber/operations.py
@@ -0,0 +1,126 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2015 Hamilton Kibbe <ham@hamiltonkib.be>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+CAM File Operations
+===================
+**Transformations and other operations performed on Gerber and Excellon files**
+
+"""
+import copy
+
+
+def to_inch(cam_file):
+ """ Convert Gerber or Excellon file units to imperial
+
+ Parameters
+ ----------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ Gerber or Excellon file to convert
+
+ Returns
+ -------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ A deep copy of the source file with units converted to imperial.
+ """
+ cam_file = copy.deepcopy(cam_file)
+ cam_file.to_inch()
+ return cam_file
+
+
+def to_metric(cam_file):
+ """ Convert Gerber or Excellon file units to metric
+
+ Parameters
+ ----------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ Gerber or Excellon file to convert
+
+ Returns
+ -------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ A deep copy of the source file with units converted to metric.
+ """
+ cam_file = copy.deepcopy(cam_file)
+ cam_file.to_metric()
+ return cam_file
+
+
+def offset(cam_file, x_offset, y_offset):
+ """ Offset a Cam file by a specified amount in the X and Y directions.
+
+ Parameters
+ ----------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ Gerber or Excellon file to offset
+
+ x_offset : float
+ Amount to offset the file in the X direction
+
+ y_offset : float
+ Amount to offset the file in the Y direction
+
+ Returns
+ -------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ An offset deep copy of the source file.
+ """
+ cam_file = copy.deepcopy(cam_file)
+ cam_file.offset(x_offset, y_offset)
+ return cam_file
+
+
+def scale(cam_file, x_scale, y_scale):
+ """ Scale a Cam file by a specified amount in the X and Y directions.
+
+ Parameters
+ ----------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ Gerber or Excellon file to scale
+
+ x_scale : float
+ X-axis scale factor
+
+ y_scale : float
+ Y-axis scale factor
+
+ Returns
+ -------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ An scaled deep copy of the source file.
+ """
+ # TODO
+ pass
+
+
+def rotate(cam_file, angle):
+ """ Rotate a Cam file a specified amount about the origin.
+
+ Parameters
+ ----------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ Gerber or Excellon file to rotate
+
+ angle : float
+ Angle to rotate the file in degrees.
+
+ Returns
+ -------
+ cam_file : :class:`gerber.cam.CamFile` subclass
+ An rotated deep copy of the source file.
+ """
+ # TODO
+ pass
diff --git a/gerber/pcb.py b/gerber/pcb.py
new file mode 100644
index 0000000..1d22e74
--- /dev/null
+++ b/gerber/pcb.py
@@ -0,0 +1,124 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2015 Hamilton Kibbe <ham@hamiltonkib.be>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import os
+from .exceptions import ParseError
+from .layers import PCBLayer, sort_layers, layer_signatures
+from .common import read as gerber_read
+from .utils import listdir
+
+
+class PCB(object):
+
+ @classmethod
+ def from_directory(cls, directory, board_name=None, verbose=False):
+ layers = []
+ names = set()
+
+ # Validate
+ directory = os.path.abspath(directory)
+ if not os.path.isdir(directory):
+ raise TypeError('{} is not a directory.'.format(directory))
+
+ # Load gerber files
+ for filename in listdir(directory, True, True):
+ try:
+ camfile = gerber_read(os.path.join(directory, filename))
+ layer = PCBLayer.from_cam(camfile)
+ layers.append(layer)
+ name = os.path.splitext(filename)[0]
+ if len(os.path.splitext(filename)) > 1:
+ _name, ext = os.path.splitext(name)
+ if ext[1:] in layer_signatures(layer.layer_class):
+ name = _name
+ if layer.layer_class == 'drill' and 'drill' in ext:
+ name = _name
+ names.add(name)
+ if verbose:
+ print('[PCB]: Added {} layer <{}>'.format(layer.layer_class,
+ filename))
+ except ParseError:
+ if verbose:
+ print('[PCB]: Skipping file {}'.format(filename))
+ except IOError:
+ if verbose:
+ print('[PCB]: Skipping file {}'.format(filename))
+
+ # Try to guess board name
+ if board_name is None:
+ if len(names) == 1:
+ board_name = names.pop()
+ else:
+ board_name = os.path.basename(directory)
+ # Return PCB
+ return cls(layers, board_name)
+
+ def __init__(self, layers, name=None):
+ self.layers = sort_layers(layers)
+ self.name = name
+
+ def __len__(self):
+ return len(self.layers)
+
+ @property
+ def top_layers(self):
+ board_layers = [l for l in reversed(self.layers) if l.layer_class in
+ ('topsilk', 'topmask', 'top')]
+ drill_layers = [l for l in self.drill_layers if 'top' in l.layers]
+ # Drill layer goes under soldermask for proper rendering of tented vias
+ return [board_layers[0]] + drill_layers + board_layers[1:]
+
+ @property
+ def bottom_layers(self):
+ board_layers = [l for l in self.layers if l.layer_class in
+ ('bottomsilk', 'bottommask', 'bottom')]
+ drill_layers = [l for l in self.drill_layers if 'bottom' in l.layers]
+ # Drill layer goes under soldermask for proper rendering of tented vias
+ return [board_layers[0]] + drill_layers + board_layers[1:]
+
+ @property
+ def drill_layers(self):
+ return [l for l in self.layers if l.layer_class == 'drill']
+
+ @property
+ def copper_layers(self):
+ return list(reversed([layer for layer in self.layers if
+ layer.layer_class in
+ ('top', 'bottom', 'internal')]))
+
+ @property
+ def outline_layer(self):
+ for layer in self.layers:
+ if layer.layer_class == 'outline':
+ return layer
+
+ @property
+ def layer_count(self):
+ """ Number of *COPPER* layers
+ """
+ return len([l for l in self.layers if l.layer_class in
+ ('top', 'bottom', 'internal')])
+
+ @property
+ def board_bounds(self):
+ for layer in self.layers:
+ if layer.layer_class == 'outline':
+ return layer.bounds
+ for layer in self.layers:
+ if layer.layer_class == 'top':
+ return layer.bounds
diff --git a/gerber/primitives.py b/gerber/primitives.py
new file mode 100644
index 0000000..757f117
--- /dev/null
+++ b/gerber/primitives.py
@@ -0,0 +1,1697 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2016 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import math
+from operator import add
+from itertools import combinations
+from .utils import validate_coordinates, inch, metric, convex_hull
+from .utils import rotate_point, nearly_equal
+
+
+
+
+class Primitive(object):
+ """ Base class for all Cam file primitives
+
+ Parameters
+ ---------
+ level_polarity : string
+ Polarity of the parameter. May be 'dark' or 'clear'. Dark indicates
+ a "positive" primitive, i.e. indicating where coppper should remain,
+ and clear indicates a negative primitive, such as where copper should
+ be removed. clear primitives are often used to create cutouts in region
+ pours.
+
+ rotation : float
+ Rotation of a primitive about its origin in degrees. Positive rotation
+ is counter-clockwise as viewed from the board top.
+
+ units : string
+ Units in which primitive was defined. 'inch' or 'metric'
+
+ net_name : string
+ Name of the electrical net the primitive belongs to
+ """
+
+ def __init__(self, level_polarity='dark', rotation=0, units=None, net_name=None):
+ self.level_polarity = level_polarity
+ self.net_name = net_name
+ self._to_convert = list()
+ self._memoized = list()
+ self._units = units
+ self._rotation = rotation
+ self._cos_theta = math.cos(math.radians(rotation))
+ self._sin_theta = math.sin(math.radians(rotation))
+ self._bounding_box = None
+ self._vertices = None
+ self._segments = None
+
+ @property
+ def flashed(self):
+ '''Is this a flashed primitive'''
+ raise NotImplementedError('Is flashed must be '
+ 'implemented in subclass')
+
+ def __eq__(self, other):
+ return self.__dict__ == other.__dict__
+
+ @property
+ def units(self):
+ return self._units
+
+ @units.setter
+ def units(self, value):
+ self._changed()
+ self._units = value
+
+ @property
+ def rotation(self):
+ return self._rotation
+
+ @rotation.setter
+ def rotation(self, value):
+ self._changed()
+ self._rotation = value
+ self._cos_theta = math.cos(math.radians(value))
+ self._sin_theta = math.sin(math.radians(value))
+
+ @property
+ def vertices(self):
+ return None
+
+ @property
+ def segments(self):
+ if self._segments is None:
+ if self.vertices is not None and len(self.vertices):
+ self._segments = [segment for segment in
+ combinations(self.vertices, 2)]
+ return self._segments
+
+ @property
+ def bounding_box(self):
+ """ Calculate axis-aligned bounding box
+
+ will be helpful for sweep & prune during DRC clearance checks.
+
+ Return ((min x, max x), (min y, max y))
+ """
+ raise NotImplementedError('Bounding box calculation must be '
+ 'implemented in subclass')
+
+ @property
+ def bounding_box_no_aperture(self):
+ """ Calculate bouxing box without considering the aperture
+
+ for most objects, this is the same as the bounding_box, but is different for
+ Lines and Arcs (which are not flashed)
+
+ Return ((min x, max x), (min y, max y))
+ """
+ return self.bounding_box
+
+ def to_inch(self):
+ """ Convert primitive units to inches.
+ """
+ if self.units == 'metric':
+ self.units = 'inch'
+ for attr, value in [(attr, getattr(self, attr))
+ for attr in self._to_convert]:
+ if hasattr(value, 'to_inch'):
+ value.to_inch()
+ else:
+ try:
+ if len(value) > 1:
+ if hasattr(value[0], 'to_inch'):
+ for v in value:
+ v.to_inch()
+ elif isinstance(value[0], tuple):
+ setattr(self, attr,
+ [tuple(map(inch, point))
+ for point in value])
+ else:
+ setattr(self, attr, tuple(map(inch, value)))
+ except:
+ if value is not None:
+ setattr(self, attr, inch(value))
+
+ def to_metric(self):
+ """ Convert primitive units to metric.
+ """
+ if self.units == 'inch':
+ self.units = 'metric'
+ for attr, value in [(attr, getattr(self, attr))
+ for attr in self._to_convert]:
+ if hasattr(value, 'to_metric'):
+ value.to_metric()
+ else:
+ try:
+ if len(value) > 1:
+ if hasattr(value[0], 'to_metric'):
+ for v in value:
+ v.to_metric()
+ elif isinstance(value[0], tuple):
+ setattr(self, attr,
+ [tuple(map(metric, point))
+ for point in value])
+ else:
+ setattr(self, attr, tuple(map(metric, value)))
+ except:
+ if value is not None:
+ setattr(self, attr, metric(value))
+
+ def offset(self, x_offset=0, y_offset=0):
+ """ Move the primitive by the specified x and y offset amount.
+
+ values are specified in the primitive's native units
+ """
+ if hasattr(self, 'position'):
+ self._changed()
+ self.position = tuple([coord + offset for coord, offset
+ in zip(self.position,
+ (x_offset, y_offset))])
+
+ def to_statement(self):
+ pass
+
+ def _changed(self):
+ """ Clear memoized properties.
+
+ Forces a recalculation next time any memoized propery is queried.
+ This must be called from a subclass every time a parameter that affects
+ a memoized property is changed. The easiest way to do this is to call
+ _changed() from property.setter methods.
+ """
+ self._bounding_box = None
+ self._vertices = None
+ self._segments = None
+ for attr in self._memoized:
+ setattr(self, attr, None)
+
+class Line(Primitive):
+ """
+ """
+
+ def __init__(self, start, end, aperture, level_polarity=None, **kwargs):
+ super(Line, self).__init__(**kwargs)
+ self.level_polarity = level_polarity
+ self._start = start
+ self._end = end
+ self.aperture = aperture
+ self._to_convert = ['start', 'end', 'aperture']
+
+ @property
+ def flashed(self):
+ return False
+
+ @property
+ def start(self):
+ return self._start
+
+ @start.setter
+ def start(self, value):
+ self._changed()
+ self._start = value
+
+ @property
+ def end(self):
+ return self._end
+
+ @end.setter
+ def end(self, value):
+ self._changed()
+ self._end = value
+
+ @property
+ def angle(self):
+ delta_x, delta_y = tuple(
+ [end - start for end, start in zip(self.end, self.start)])
+ angle = math.atan2(delta_y, delta_x)
+ return angle
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ if isinstance(self.aperture, Circle):
+ width_2 = self.aperture.radius
+ height_2 = width_2
+ else:
+ width_2 = self.aperture.width / 2.
+ height_2 = self.aperture.height / 2.
+ min_x = min(self.start[0], self.end[0]) - width_2
+ max_x = max(self.start[0], self.end[0]) + width_2
+ min_y = min(self.start[1], self.end[1]) - height_2
+ max_y = max(self.start[1], self.end[1]) + height_2
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ @property
+ def bounding_box_no_aperture(self):
+ '''Gets the bounding box without the aperture'''
+ min_x = min(self.start[0], self.end[0])
+ max_x = max(self.start[0], self.end[0])
+ min_y = min(self.start[1], self.end[1])
+ max_y = max(self.start[1], self.end[1])
+ return ((min_x, max_x), (min_y, max_y))
+
+ @property
+ def vertices(self):
+ if self._vertices is None:
+ start = self.start
+ end = self.end
+ if isinstance(self.aperture, Rectangle):
+ width = self.aperture.width
+ height = self.aperture.height
+
+ # Find all the corners of the start and end position
+ start_ll = (start[0] - (width / 2.), start[1] - (height / 2.))
+ start_lr = (start[0] + (width / 2.), start[1] - (height / 2.))
+ start_ul = (start[0] - (width / 2.), start[1] + (height / 2.))
+ start_ur = (start[0] + (width / 2.), start[1] + (height / 2.))
+ end_ll = (end[0] - (width / 2.), end[1] - (height / 2.))
+ end_lr = (end[0] + (width / 2.), end[1] - (height / 2.))
+ end_ul = (end[0] - (width / 2.), end[1] + (height / 2.))
+ end_ur = (end[0] + (width / 2.), end[1] + (height / 2.))
+
+ # The line is defined by the convex hull of the points
+ self._vertices = convex_hull((start_ll, start_lr, start_ul, start_ur, end_ll, end_lr, end_ul, end_ur))
+ elif isinstance(self.aperture, Polygon):
+ points = [map(add, point, vertex)
+ for vertex in self.aperture.vertices
+ for point in (start, end)]
+ self._vertices = convex_hull(points)
+ return self._vertices
+
+ def offset(self, x_offset=0, y_offset=0):
+ self._changed()
+ self.start = tuple([coord + offset for coord, offset
+ in zip(self.start, (x_offset, y_offset))])
+ self.end = tuple([coord + offset for coord, offset
+ in zip(self.end, (x_offset, y_offset))])
+
+ def equivalent(self, other, offset):
+
+ if not isinstance(other, Line):
+ return False
+
+ equiv_start = tuple(map(add, other.start, offset))
+ equiv_end = tuple(map(add, other.end, offset))
+
+
+ return nearly_equal(self.start, equiv_start) and nearly_equal(self.end, equiv_end)
+
+ def __str__(self):
+ return "<Line {} to {}>".format(self.start, self.end)
+
+ def __repr__(self):
+ return str(self)
+
+class Arc(Primitive):
+ """
+ """
+
+ def __init__(self, start, end, center, direction, aperture, quadrant_mode,
+ level_polarity=None, **kwargs):
+ super(Arc, self).__init__(**kwargs)
+ self.level_polarity = level_polarity
+ self._start = start
+ self._end = end
+ self._center = center
+ self.direction = direction
+ self.aperture = aperture
+ self._quadrant_mode = quadrant_mode
+ self._to_convert = ['start', 'end', 'center', 'aperture']
+
+ @property
+ def flashed(self):
+ return False
+
+ @property
+ def start(self):
+ return self._start
+
+ @start.setter
+ def start(self, value):
+ self._changed()
+ self._start = value
+
+ @property
+ def end(self):
+ return self._end
+
+ @end.setter
+ def end(self, value):
+ self._changed()
+ self._end = value
+
+ @property
+ def center(self):
+ return self._center
+
+ @center.setter
+ def center(self, value):
+ self._changed()
+ self._center = value
+
+ @property
+ def quadrant_mode(self):
+ return self._quadrant_mode
+
+ @quadrant_mode.setter
+ def quadrant_mode(self, quadrant_mode):
+ self._changed()
+ self._quadrant_mode = quadrant_mode
+
+ @property
+ def radius(self):
+ dy, dx = tuple([start - center for start, center
+ in zip(self.start, self.center)])
+ return math.sqrt(dy ** 2 + dx ** 2)
+
+ @property
+ def start_angle(self):
+ dx, dy = tuple([start - center for start, center
+ in zip(self.start, self.center)])
+ return math.atan2(dy, dx)
+
+ @property
+ def end_angle(self):
+ dx, dy = tuple([end - center for end, center
+ in zip(self.end, self.center)])
+ return math.atan2(dy, dx)
+
+ @property
+ def sweep_angle(self):
+ two_pi = 2 * math.pi
+ theta0 = (self.start_angle + two_pi) % two_pi
+ theta1 = (self.end_angle + two_pi) % two_pi
+ if self.direction == 'counterclockwise':
+ return abs(theta1 - theta0)
+ else:
+ theta0 += two_pi
+ return abs(theta0 - theta1) % two_pi
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ two_pi = 2 * math.pi
+ theta0 = (self.start_angle + two_pi) % two_pi
+ theta1 = (self.end_angle + two_pi) % two_pi
+ points = [self.start, self.end]
+ if self.quadrant_mode == 'multi-quadrant':
+ if self.direction == 'counterclockwise':
+ # Passes through 0 degrees
+ if theta0 >= theta1:
+ points.append((self.center[0] + self.radius, self.center[1]))
+ # Passes through 90 degrees
+ if (((theta0 <= math.pi / 2.) and ((theta1 >= math.pi / 2.) or (theta1 <= theta0)))
+ or ((theta1 > math.pi / 2.) and (theta1 <= theta0))):
+ points.append((self.center[0], self.center[1] + self.radius))
+ # Passes through 180 degrees
+ if ((theta0 <= math.pi and (theta1 >= math.pi or theta1 <= theta0))
+ or ((theta1 > math.pi) and (theta1 <= theta0))):
+ points.append((self.center[0] - self.radius, self.center[1]))
+ # Passes through 270 degrees
+ if (theta0 <= math.pi * 1.5 and (theta1 >= math.pi * 1.5 or theta1 <= theta0)
+ or ((theta1 > math.pi * 1.5) and (theta1 <= theta0))):
+ points.append((self.center[0], self.center[1] - self.radius))
+ else:
+ # Passes through 0 degrees
+ if theta1 >= theta0:
+ points.append((self.center[0] + self.radius, self.center[1]))
+ # Passes through 90 degrees
+ if (((theta1 <= math.pi / 2.) and (theta0 >= math.pi / 2. or theta0 <= theta1))
+ or ((theta0 > math.pi / 2.) and (theta0 <= theta1))):
+ points.append((self.center[0], self.center[1] + self.radius))
+ # Passes through 180 degrees
+ if (((theta1 <= math.pi) and (theta0 >= math.pi or theta0 <= theta1))
+ or ((theta0 > math.pi) and (theta0 <= theta1))):
+ points.append((self.center[0] - self.radius, self.center[1]))
+ # Passes through 270 degrees
+ if (((theta1 <= math.pi * 1.5) and (theta0 >= math.pi * 1.5 or theta0 <= theta1))
+ or ((theta0 > math.pi * 1.5) and (theta0 <= theta1))):
+ points.append((self.center[0], self.center[1] - self.radius))
+ x, y = zip(*points)
+ if hasattr(self.aperture, 'radius'):
+ min_x = min(x) - self.aperture.radius
+ max_x = max(x) + self.aperture.radius
+ min_y = min(y) - self.aperture.radius
+ max_y = max(y) + self.aperture.radius
+ else:
+ min_x = min(x) - self.aperture.width
+ max_x = max(x) + self.aperture.width
+ min_y = min(y) - self.aperture.height
+ max_y = max(y) + self.aperture.height
+
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ @property
+ def bounding_box_no_aperture(self):
+ '''Gets the bounding box without considering the aperture'''
+ two_pi = 2 * math.pi
+ theta0 = (self.start_angle + two_pi) % two_pi
+ theta1 = (self.end_angle + two_pi) % two_pi
+ points = [self.start, self.end]
+ if self.quadrant_mode == 'multi-quadrant':
+ if self.direction == 'counterclockwise':
+ # Passes through 0 degrees
+ if theta0 >= theta1:
+ points.append((self.center[0] + self.radius, self.center[1]))
+ # Passes through 90 degrees
+ if (((theta0 <= math.pi / 2.) and (
+ (theta1 >= math.pi / 2.) or (theta1 <= theta0)))
+ or ((theta1 > math.pi / 2.) and (theta1 <= theta0))):
+ points.append((self.center[0], self.center[1] + self.radius))
+ # Passes through 180 degrees
+ if ((theta0 <= math.pi and (theta1 >= math.pi or theta1 <= theta0))
+ or ((theta1 > math.pi) and (theta1 <= theta0))):
+ points.append((self.center[0] - self.radius, self.center[1]))
+ # Passes through 270 degrees
+ if (theta0 <= math.pi * 1.5 and (
+ theta1 >= math.pi * 1.5 or theta1 <= theta0)
+ or ((theta1 > math.pi * 1.5) and (theta1 <= theta0))):
+ points.append((self.center[0], self.center[1] - self.radius))
+ else:
+ # Passes through 0 degrees
+ if theta1 >= theta0:
+ points.append((self.center[0] + self.radius, self.center[1]))
+ # Passes through 90 degrees
+ if (((theta1 <= math.pi / 2.) and (
+ theta0 >= math.pi / 2. or theta0 <= theta1))
+ or ((theta0 > math.pi / 2.) and (theta0 <= theta1))):
+ points.append((self.center[0], self.center[1] + self.radius))
+ # Passes through 180 degrees
+ if (((theta1 <= math.pi) and (theta0 >= math.pi or theta0 <= theta1))
+ or ((theta0 > math.pi) and (theta0 <= theta1))):
+ points.append((self.center[0] - self.radius, self.center[1]))
+ # Passes through 270 degrees
+ if (((theta1 <= math.pi * 1.5) and (
+ theta0 >= math.pi * 1.5 or theta0 <= theta1))
+ or ((theta0 > math.pi * 1.5) and (theta0 <= theta1))):
+ points.append((self.center[0], self.center[1] - self.radius))
+ x, y = zip(*points)
+
+ min_x = min(x)
+ max_x = max(x)
+ min_y = min(y)
+ max_y = max(y)
+ return ((min_x, max_x), (min_y, max_y))
+
+ def offset(self, x_offset=0, y_offset=0):
+ self._changed()
+ self.start = tuple(map(add, self.start, (x_offset, y_offset)))
+ self.end = tuple(map(add, self.end, (x_offset, y_offset)))
+ self.center = tuple(map(add, self.center, (x_offset, y_offset)))
+
+
+class Circle(Primitive):
+ """
+ """
+
+ def __init__(self, position, diameter, hole_diameter=None,
+ hole_width=0, hole_height=0, **kwargs):
+ super(Circle, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._diameter = diameter
+ self.hole_diameter = hole_diameter
+ self.hole_width = hole_width
+ self.hole_height = hole_height
+ self._to_convert = ['position', 'diameter', 'hole_diameter', 'hole_width', 'hole_height']
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def diameter(self):
+ return self._diameter
+
+ @diameter.setter
+ def diameter(self, value):
+ self._changed()
+ self._diameter = value
+
+ @property
+ def radius(self):
+ return self.diameter / 2.
+
+ @property
+ def hole_radius(self):
+ if self.hole_diameter != None:
+ return self.hole_diameter / 2.
+ return None
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ min_x = self.position[0] - self.radius
+ max_x = self.position[0] + self.radius
+ min_y = self.position[1] - self.radius
+ max_y = self.position[1] + self.radius
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ def offset(self, x_offset=0, y_offset=0):
+ self.position = tuple(map(add, self.position, (x_offset, y_offset)))
+
+ def equivalent(self, other, offset):
+ '''Is this the same as the other circle, ignoring the offiset?'''
+
+ if not isinstance(other, Circle):
+ return False
+
+ if self.diameter != other.diameter or self.hole_diameter != other.hole_diameter:
+ return False
+
+ equiv_position = tuple(map(add, other.position, offset))
+
+ return nearly_equal(self.position, equiv_position)
+
+
+class Ellipse(Primitive):
+ """
+ """
+ def __init__(self, position, width, height, **kwargs):
+ super(Ellipse, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._width = width
+ self._height = height
+ self._to_convert = ['position', 'width', 'height']
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def width(self):
+ return self._width
+
+ @width.setter
+ def width(self, value):
+ self._changed()
+ self._width = value
+
+ @property
+ def height(self):
+ return self._height
+
+ @height.setter
+ def height(self, value):
+ self._changed()
+ self._height = value
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ min_x = self.position[0] - (self.axis_aligned_width / 2.0)
+ max_x = self.position[0] + (self.axis_aligned_width / 2.0)
+ min_y = self.position[1] - (self.axis_aligned_height / 2.0)
+ max_y = self.position[1] + (self.axis_aligned_height / 2.0)
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ @property
+ def axis_aligned_width(self):
+ ux = (self.width / 2.) * math.cos(math.radians(self.rotation))
+ vx = (self.height / 2.) * \
+ math.cos(math.radians(self.rotation) + (math.pi / 2.))
+ return 2 * math.sqrt((ux * ux) + (vx * vx))
+
+ @property
+ def axis_aligned_height(self):
+ uy = (self.width / 2.) * math.sin(math.radians(self.rotation))
+ vy = (self.height / 2.) * \
+ math.sin(math.radians(self.rotation) + (math.pi / 2.))
+ return 2 * math.sqrt((uy * uy) + (vy * vy))
+
+
+class Rectangle(Primitive):
+ """
+ When rotated, the rotation is about the center point.
+
+ Only aperture macro generated Rectangle objects can be rotated. If you aren't in a AMGroup,
+ then you don't need to worry about rotation
+ """
+
+ def __init__(self, position, width, height, hole_diameter=0,
+ hole_width=0, hole_height=0, **kwargs):
+ super(Rectangle, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._width = width
+ self._height = height
+ self.hole_diameter = hole_diameter
+ self.hole_width = hole_width
+ self.hole_height = hole_height
+ self._to_convert = ['position', 'width', 'height', 'hole_diameter',
+ 'hole_width', 'hole_height']
+ # TODO These are probably wrong when rotated
+ self._lower_left = None
+ self._upper_right = None
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def width(self):
+ return self._width
+
+ @width.setter
+ def width(self, value):
+ self._changed()
+ self._width = value
+
+ @property
+ def height(self):
+ return self._height
+
+ @height.setter
+ def height(self, value):
+ self._changed()
+ self._height = value
+
+ @property
+ def hole_radius(self):
+ """The radius of the hole. If there is no hole, returns None"""
+ if self.hole_diameter != None:
+ return self.hole_diameter / 2.
+ return None
+
+ @property
+ def upper_right(self):
+ return (self.position[0] + (self.axis_aligned_width / 2.),
+ self.position[1] + (self.axis_aligned_height / 2.))
+
+ @property
+ def lower_left(self):
+ return (self.position[0] - (self.axis_aligned_width / 2.),
+ self.position[1] - (self.axis_aligned_height / 2.))
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ ll = (self.position[0] - (self.axis_aligned_width / 2.),
+ self.position[1] - (self.axis_aligned_height / 2.))
+ ur = (self.position[0] + (self.axis_aligned_width / 2.),
+ self.position[1] + (self.axis_aligned_height / 2.))
+ self._bounding_box = ((ll[0], ur[0]), (ll[1], ur[1]))
+ return self._bounding_box
+
+ @property
+ def vertices(self):
+ if self._vertices is None:
+ delta_w = self.width / 2.
+ delta_h = self.height / 2.
+ ll = ((self.position[0] - delta_w), (self.position[1] - delta_h))
+ ul = ((self.position[0] - delta_w), (self.position[1] + delta_h))
+ ur = ((self.position[0] + delta_w), (self.position[1] + delta_h))
+ lr = ((self.position[0] + delta_w), (self.position[1] - delta_h))
+ self._vertices = [((x * self._cos_theta - y * self._sin_theta),
+ (x * self._sin_theta + y * self._cos_theta))
+ for x, y in [ll, ul, ur, lr]]
+ return self._vertices
+
+ @property
+ def axis_aligned_width(self):
+ return (self._cos_theta * self.width + self._sin_theta * self.height)
+
+ @property
+ def axis_aligned_height(self):
+ return (self._cos_theta * self.height + self._sin_theta * self.width)
+
+ def equivalent(self, other, offset):
+ """Is this the same as the other rect, ignoring the offset?"""
+
+ if not isinstance(other, Rectangle):
+ return False
+
+ if self.width != other.width or self.height != other.height or self.rotation != other.rotation or self.hole_diameter != other.hole_diameter:
+ return False
+
+ equiv_position = tuple(map(add, other.position, offset))
+
+ return nearly_equal(self.position, equiv_position)
+
+ def __str__(self):
+ return "<Rectangle W {} H {} R {}>".format(self.width, self.height, self.rotation * 180/math.pi)
+
+ def __repr__(self):
+ return self.__str__()
+
+
+class Diamond(Primitive):
+ """
+ """
+
+ def __init__(self, position, width, height, **kwargs):
+ super(Diamond, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._width = width
+ self._height = height
+ self._to_convert = ['position', 'width', 'height']
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def width(self):
+ return self._width
+
+ @width.setter
+ def width(self, value):
+ self._changed()
+ self._width = value
+
+ @property
+ def height(self):
+ return self._height
+
+ @height.setter
+ def height(self, value):
+ self._changed()
+ self._height = value
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ ll = (self.position[0] - (self.axis_aligned_width / 2.),
+ self.position[1] - (self.axis_aligned_height / 2.))
+ ur = (self.position[0] + (self.axis_aligned_width / 2.),
+ self.position[1] + (self.axis_aligned_height / 2.))
+ self._bounding_box = ((ll[0], ur[0]), (ll[1], ur[1]))
+ return self._bounding_box
+
+ @property
+ def vertices(self):
+ if self._vertices is None:
+ delta_w = self.width / 2.
+ delta_h = self.height / 2.
+ top = (self.position[0], (self.position[1] + delta_h))
+ right = ((self.position[0] + delta_w), self.position[1])
+ bottom = (self.position[0], (self.position[1] - delta_h))
+ left = ((self.position[0] - delta_w), self.position[1])
+ self._vertices = [(((x * self._cos_theta) - (y * self._sin_theta)),
+ ((x * self._sin_theta) + (y * self._cos_theta)))
+ for x, y in [top, right, bottom, left]]
+ return self._vertices
+
+ @property
+ def axis_aligned_width(self):
+ return (self._cos_theta * self.width + self._sin_theta * self.height)
+
+ @property
+ def axis_aligned_height(self):
+ return (self._cos_theta * self.height + self._sin_theta * self.width)
+
+
+class ChamferRectangle(Primitive):
+ """
+ """
+ def __init__(self, position, width, height, chamfer, corners=None, **kwargs):
+ super(ChamferRectangle, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._width = width
+ self._height = height
+ self._chamfer = chamfer
+ self._corners = corners if corners is not None else [True] * 4
+ self._to_convert = ['position', 'width', 'height', 'chamfer']
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def width(self):
+ return self._width
+
+ @width.setter
+ def width(self, value):
+ self._changed()
+ self._width = value
+
+ @property
+ def height(self):
+ return self._height
+
+ @height.setter
+ def height(self, value):
+ self._changed()
+ self._height = value
+
+ @property
+ def chamfer(self):
+ return self._chamfer
+
+ @chamfer.setter
+ def chamfer(self, value):
+ self._changed()
+ self._chamfer = value
+
+ @property
+ def corners(self):
+ return self._corners
+
+ @corners.setter
+ def corners(self, value):
+ self._changed()
+ self._corners = value
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ ll = (self.position[0] - (self.axis_aligned_width / 2.),
+ self.position[1] - (self.axis_aligned_height / 2.))
+ ur = (self.position[0] + (self.axis_aligned_width / 2.),
+ self.position[1] + (self.axis_aligned_height / 2.))
+ self._bounding_box = ((ll[0], ur[0]), (ll[1], ur[1]))
+ return self._bounding_box
+
+ @property
+ def vertices(self):
+ if self._vertices is None:
+ vertices = []
+ delta_w = self.width / 2.
+ delta_h = self.height / 2.
+ # order is UR, UL, LL, LR
+ rect_corners = [
+ ((self.position[0] + delta_w), (self.position[1] + delta_h)),
+ ((self.position[0] - delta_w), (self.position[1] + delta_h)),
+ ((self.position[0] - delta_w), (self.position[1] - delta_h)),
+ ((self.position[0] + delta_w), (self.position[1] - delta_h))
+ ]
+ for idx, params in enumerate(zip(rect_corners, self.corners)):
+ corner, chamfered = params
+ x, y = corner
+ if chamfered:
+ if idx == 0:
+ vertices.append((x - self.chamfer, y))
+ vertices.append((x, y - self.chamfer))
+ elif idx == 1:
+ vertices.append((x + self.chamfer, y))
+ vertices.append((x, y - self.chamfer))
+ elif idx == 2:
+ vertices.append((x + self.chamfer, y))
+ vertices.append((x, y + self.chamfer))
+ elif idx == 3:
+ vertices.append((x - self.chamfer, y))
+ vertices.append((x, y + self.chamfer))
+ else:
+ vertices.append(corner)
+ self._vertices = [((x * self._cos_theta - y * self._sin_theta),
+ (x * self._sin_theta + y * self._cos_theta))
+ for x, y in vertices]
+ return self._vertices
+
+ @property
+ def axis_aligned_width(self):
+ return (self._cos_theta * self.width +
+ self._sin_theta * self.height)
+
+ @property
+ def axis_aligned_height(self):
+ return (self._cos_theta * self.height +
+ self._sin_theta * self.width)
+
+
+class RoundRectangle(Primitive):
+ """
+ """
+
+ def __init__(self, position, width, height, radius, corners, **kwargs):
+ super(RoundRectangle, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._width = width
+ self._height = height
+ self._radius = radius
+ self._corners = corners
+ self._to_convert = ['position', 'width', 'height', 'radius']
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def width(self):
+ return self._width
+
+ @width.setter
+ def width(self, value):
+ self._changed()
+ self._width = value
+
+ @property
+ def height(self):
+ return self._height
+
+ @height.setter
+ def height(self, value):
+ self._changed()
+ self._height = value
+
+ @property
+ def radius(self):
+ return self._radius
+
+ @radius.setter
+ def radius(self, value):
+ self._changed()
+ self._radius = value
+
+ @property
+ def corners(self):
+ return self._corners
+
+ @corners.setter
+ def corners(self, value):
+ self._changed()
+ self._corners = value
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ ll = (self.position[0] - (self.axis_aligned_width / 2.),
+ self.position[1] - (self.axis_aligned_height / 2.))
+ ur = (self.position[0] + (self.axis_aligned_width / 2.),
+ self.position[1] + (self.axis_aligned_height / 2.))
+ self._bounding_box = ((ll[0], ur[0]), (ll[1], ur[1]))
+ return self._bounding_box
+
+ @property
+ def axis_aligned_width(self):
+ return (self._cos_theta * self.width +
+ self._sin_theta * self.height)
+
+ @property
+ def axis_aligned_height(self):
+ return (self._cos_theta * self.height +
+ self._sin_theta * self.width)
+
+
+class Obround(Primitive):
+ """
+ """
+
+ def __init__(self, position, width, height, hole_diameter=0,
+ hole_width=0,hole_height=0, **kwargs):
+ super(Obround, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._width = width
+ self._height = height
+ self.hole_diameter = hole_diameter
+ self.hole_width = hole_width
+ self.hole_height = hole_height
+ self._to_convert = ['position', 'width', 'height', 'hole_diameter',
+ 'hole_width', 'hole_height' ]
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def width(self):
+ return self._width
+
+ @width.setter
+ def width(self, value):
+ self._changed()
+ self._width = value
+
+ @property
+ def height(self):
+ return self._height
+
+ @height.setter
+ def height(self, value):
+ self._changed()
+ self._height = value
+
+ @property
+ def hole_radius(self):
+ """The radius of the hole. If there is no hole, returns None"""
+ if self.hole_diameter != None:
+ return self.hole_diameter / 2.
+
+ return None
+
+ @property
+ def orientation(self):
+ return 'vertical' if self.height > self.width else 'horizontal'
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ ll = (self.position[0] - (self.axis_aligned_width / 2.),
+ self.position[1] - (self.axis_aligned_height / 2.))
+ ur = (self.position[0] + (self.axis_aligned_width / 2.),
+ self.position[1] + (self.axis_aligned_height / 2.))
+ self._bounding_box = ((ll[0], ur[0]), (ll[1], ur[1]))
+ return self._bounding_box
+
+ @property
+ def subshapes(self):
+ if self.orientation == 'vertical':
+ circle1 = Circle((self.position[0], self.position[1] +
+ (self.height - self.width) / 2.), self.width)
+ circle2 = Circle((self.position[0], self.position[1] -
+ (self.height - self.width) / 2.), self.width)
+ rect = Rectangle(self.position, self.width,
+ (self.height - self.width))
+ else:
+ circle1 = Circle((self.position[0]
+ - (self.height - self.width) / 2.,
+ self.position[1]), self.height)
+ circle2 = Circle((self.position[0]
+ + (self.height - self.width) / 2.,
+ self.position[1]), self.height)
+ rect = Rectangle(self.position, (self.width - self.height),
+ self.height)
+ return {'circle1': circle1, 'circle2': circle2, 'rectangle': rect}
+
+ @property
+ def axis_aligned_width(self):
+ return (self._cos_theta * self.width +
+ self._sin_theta * self.height)
+
+ @property
+ def axis_aligned_height(self):
+ return (self._cos_theta * self.height +
+ self._sin_theta * self.width)
+
+
+class Polygon(Primitive):
+ """
+ Polygon flash defined by a set number of sides.
+ """
+ def __init__(self, position, sides, radius, hole_diameter=0,
+ hole_width=0, hole_height=0, **kwargs):
+ super(Polygon, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self.sides = sides
+ self._radius = radius
+ self.hole_diameter = hole_diameter
+ self.hole_width = hole_width
+ self.hole_height = hole_height
+ self._to_convert = ['position', 'radius', 'hole_diameter',
+ 'hole_width', 'hole_height']
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def diameter(self):
+ return self.radius * 2
+
+ @property
+ def hole_radius(self):
+ if self.hole_diameter != None:
+ return self.hole_diameter / 2.
+ return None
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def radius(self):
+ return self._radius
+
+ @radius.setter
+ def radius(self, value):
+ self._changed()
+ self._radius = value
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ min_x = self.position[0] - self.radius
+ max_x = self.position[0] + self.radius
+ min_y = self.position[1] - self.radius
+ max_y = self.position[1] + self.radius
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ def offset(self, x_offset=0, y_offset=0):
+ self.position = tuple(map(add, self.position, (x_offset, y_offset)))
+
+ @property
+ def vertices(self):
+
+ offset = self.rotation
+ delta_angle = 360.0 / self.sides
+
+ points = []
+ for i in range(self.sides):
+ points.append(
+ rotate_point((self.position[0] + self.radius, self.position[1]), offset + delta_angle * i, self.position))
+ return points
+
+
+ def equivalent(self, other, offset):
+ """
+ Is this the outline the same as the other, ignoring the position offset?
+ """
+
+ # Quick check if it even makes sense to compare them
+ if type(self) != type(other) or self.sides != other.sides or self.radius != other.radius:
+ return False
+
+ equiv_pos = tuple(map(add, other.position, offset))
+
+ return nearly_equal(self.position, equiv_pos)
+
+
+class AMGroup(Primitive):
+ """
+ """
+ def __init__(self, amprimitives, stmt = None, **kwargs):
+ """
+
+ stmt : The original statment that generated this, since it is really hard to re-generate from primitives
+ """
+ super(AMGroup, self).__init__(**kwargs)
+
+ self.primitives = []
+ for amprim in amprimitives:
+ prim = amprim.to_primitive(self.units)
+ if isinstance(prim, list):
+ for p in prim:
+ self.primitives.append(p)
+ elif prim:
+ self.primitives.append(prim)
+ self._position = None
+ self._to_convert = ['_position', 'primitives']
+ self.stmt = stmt
+
+ def to_inch(self):
+ if self.units == 'metric':
+ super(AMGroup, self).to_inch()
+
+ # If we also have a stmt, convert that too
+ if self.stmt:
+ self.stmt.to_inch()
+
+
+ def to_metric(self):
+ if self.units == 'inch':
+ super(AMGroup, self).to_metric()
+
+ # If we also have a stmt, convert that too
+ if self.stmt:
+ self.stmt.to_metric()
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def bounding_box(self):
+ # TODO Make this cached like other items
+ xlims, ylims = zip(*[p.bounding_box for p in self.primitives])
+ minx, maxx = zip(*xlims)
+ miny, maxy = zip(*ylims)
+ min_x = min(minx)
+ max_x = max(maxx)
+ min_y = min(miny)
+ max_y = max(maxy)
+ return ((min_x, max_x), (min_y, max_y))
+
+ @property
+ def position(self):
+ return self._position
+
+ def offset(self, x_offset=0, y_offset=0):
+ self._position = tuple(map(add, self._position, (x_offset, y_offset)))
+
+ for primitive in self.primitives:
+ primitive.offset(x_offset, y_offset)
+
+ @position.setter
+ def position(self, new_pos):
+ '''
+ Sets the position of the AMGroup.
+ This offset all of the objects by the specified distance.
+ '''
+
+ if self._position:
+ dx = new_pos[0] - self._position[0]
+ dy = new_pos[1] - self._position[1]
+ else:
+ dx = new_pos[0]
+ dy = new_pos[1]
+
+ for primitive in self.primitives:
+ primitive.offset(dx, dy)
+
+ self._position = new_pos
+
+ def equivalent(self, other, offset):
+ '''
+ Is this the macro group the same as the other, ignoring the position offset?
+ '''
+
+ if len(self.primitives) != len(other.primitives):
+ return False
+
+ # We know they have the same number of primitives, so now check them all
+ for i in range(0, len(self.primitives)):
+ if not self.primitives[i].equivalent(other.primitives[i], offset):
+ return False
+
+ # If we didn't find any differences, then they are the same
+ return True
+
+class Outline(Primitive):
+ """
+ Outlines only exist as the rendering for a apeture macro outline.
+ They don't exist outside of AMGroup objects
+ """
+
+ def __init__(self, primitives, **kwargs):
+ super(Outline, self).__init__(**kwargs)
+ self.primitives = primitives
+ self._to_convert = ['primitives']
+
+ if self.primitives[0].start != self.primitives[-1].end:
+ raise ValueError('Outline must be closed')
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ xlims, ylims = zip(*[p.bounding_box for p in self.primitives])
+ minx, maxx = zip(*xlims)
+ miny, maxy = zip(*ylims)
+ min_x = min(minx)
+ max_x = max(maxx)
+ min_y = min(miny)
+ max_y = max(maxy)
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ def offset(self, x_offset=0, y_offset=0):
+ self._changed()
+ for p in self.primitives:
+ p.offset(x_offset, y_offset)
+
+ @property
+ def vertices(self):
+ if self._vertices is None:
+ theta = math.radians(360/self.sides)
+ vertices = [(self.position[0] + (math.cos(theta * side) * self.radius),
+ self.position[1] + (math.sin(theta * side) * self.radius))
+ for side in range(self.sides)]
+ self._vertices = [(((x * self._cos_theta) - (y * self._sin_theta)),
+ ((x * self._sin_theta) + (y * self._cos_theta)))
+ for x, y in vertices]
+ return self._vertices
+
+ @property
+ def width(self):
+ bounding_box = self.bounding_box()
+ return bounding_box[0][1] - bounding_box[0][0]
+
+ def equivalent(self, other, offset):
+ '''
+ Is this the outline the same as the other, ignoring the position offset?
+ '''
+
+ # Quick check if it even makes sense to compare them
+ if type(self) != type(other) or len(self.primitives) != len(other.primitives):
+ return False
+
+ for i in range(0, len(self.primitives)):
+ if not self.primitives[i].equivalent(other.primitives[i], offset):
+ return False
+
+ return True
+
+class Region(Primitive):
+ """
+ """
+
+ def __init__(self, primitives, **kwargs):
+ super(Region, self).__init__(**kwargs)
+ self.primitives = primitives
+ self._to_convert = ['primitives']
+
+ @property
+ def flashed(self):
+ return False
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ xlims, ylims = zip(*[p.bounding_box_no_aperture for p in self.primitives])
+ minx, maxx = zip(*xlims)
+ miny, maxy = zip(*ylims)
+ min_x = min(minx)
+ max_x = max(maxx)
+ min_y = min(miny)
+ max_y = max(maxy)
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ def offset(self, x_offset=0, y_offset=0):
+ self._changed()
+ for p in self.primitives:
+ p.offset(x_offset, y_offset)
+
+
+class RoundButterfly(Primitive):
+ """ A circle with two diagonally-opposite quadrants removed
+ """
+
+ def __init__(self, position, diameter, **kwargs):
+ super(RoundButterfly, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self.position = position
+ self.diameter = diameter
+ self._to_convert = ['position', 'diameter']
+
+ # TODO This does not reset bounding box correctly
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def radius(self):
+ return self.diameter / 2.
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ min_x = self.position[0] - self.radius
+ max_x = self.position[0] + self.radius
+ min_y = self.position[1] - self.radius
+ max_y = self.position[1] + self.radius
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+
+class SquareButterfly(Primitive):
+ """ A square with two diagonally-opposite quadrants removed
+ """
+
+ def __init__(self, position, side, **kwargs):
+ super(SquareButterfly, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self.position = position
+ self.side = side
+ self._to_convert = ['position', 'side']
+
+ # TODO This does not reset bounding box correctly
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ min_x = self.position[0] - (self.side / 2.)
+ max_x = self.position[0] + (self.side / 2.)
+ min_y = self.position[1] - (self.side / 2.)
+ max_y = self.position[1] + (self.side / 2.)
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+
+class Donut(Primitive):
+ """ A Shape with an identical concentric shape removed from its center
+ """
+
+ def __init__(self, position, shape, inner_diameter,
+ outer_diameter, **kwargs):
+ super(Donut, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self.position = position
+ if shape not in ('round', 'square', 'hexagon', 'octagon'):
+ raise ValueError(
+ 'Valid shapes are round, square, hexagon or octagon')
+ self.shape = shape
+ if inner_diameter >= outer_diameter:
+ raise ValueError(
+ 'Outer diameter must be larger than inner diameter.')
+ self.inner_diameter = inner_diameter
+ self.outer_diameter = outer_diameter
+ if self.shape in ('round', 'square', 'octagon'):
+ self.width = outer_diameter
+ self.height = outer_diameter
+ else:
+ # Hexagon
+ self.width = 0.5 * math.sqrt(3.) * outer_diameter
+ self.height = outer_diameter
+
+ self._to_convert = ['position', 'width',
+ 'height', 'inner_diameter', 'outer_diameter']
+
+ # TODO This does not reset bounding box correctly
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def lower_left(self):
+ return (self.position[0] - (self.width / 2.),
+ self.position[1] - (self.height / 2.))
+
+ @property
+ def upper_right(self):
+ return (self.position[0] + (self.width / 2.),
+ self.position[1] + (self.height / 2.))
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ ll = (self.position[0] - (self.width / 2.),
+ self.position[1] - (self.height / 2.))
+ ur = (self.position[0] + (self.width / 2.),
+ self.position[1] + (self.height / 2.))
+ self._bounding_box = ((ll[0], ur[0]), (ll[1], ur[1]))
+ return self._bounding_box
+
+
+class SquareRoundDonut(Primitive):
+ """ A Square with a circular cutout in the center
+ """
+
+ def __init__(self, position, inner_diameter, outer_diameter, **kwargs):
+ super(SquareRoundDonut, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self.position = position
+ if inner_diameter >= outer_diameter:
+ raise ValueError(
+ 'Outer diameter must be larger than inner diameter.')
+ self.inner_diameter = inner_diameter
+ self.outer_diameter = outer_diameter
+ self._to_convert = ['position', 'inner_diameter', 'outer_diameter']
+
+ @property
+ def flashed(self):
+ return True
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ ll = tuple([c - self.outer_diameter / 2. for c in self.position])
+ ur = tuple([c + self.outer_diameter / 2. for c in self.position])
+ self._bounding_box = ((ll[0], ur[0]), (ll[1], ur[1]))
+ return self._bounding_box
+
+
+class Drill(Primitive):
+ """ A drill hole
+ """
+ def __init__(self, position, diameter, **kwargs):
+ super(Drill, self).__init__('dark', **kwargs)
+ validate_coordinates(position)
+ self._position = position
+ self._diameter = diameter
+ self._to_convert = ['position', 'diameter']
+
+ @property
+ def flashed(self):
+ return False
+
+ @property
+ def position(self):
+ return self._position
+
+ @position.setter
+ def position(self, value):
+ self._changed()
+ self._position = value
+
+ @property
+ def diameter(self):
+ return self._diameter
+
+ @diameter.setter
+ def diameter(self, value):
+ self._changed()
+ self._diameter = value
+
+ @property
+ def radius(self):
+ return self.diameter / 2.
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ min_x = self.position[0] - self.radius
+ max_x = self.position[0] + self.radius
+ min_y = self.position[1] - self.radius
+ max_y = self.position[1] + self.radius
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ def offset(self, x_offset=0, y_offset=0):
+ self._changed()
+ self.position = tuple(map(add, self.position, (x_offset, y_offset)))
+
+ def __str__(self):
+ return '<Drill %f %s (%f, %f)>' % (self.diameter, self.units, self.position[0], self.position[1])
+
+
+class Slot(Primitive):
+ """ A drilled slot
+ """
+ def __init__(self, start, end, diameter, **kwargs):
+ super(Slot, self).__init__('dark', **kwargs)
+ validate_coordinates(start)
+ validate_coordinates(end)
+ self.start = start
+ self.end = end
+ self.diameter = diameter
+ self._to_convert = ['start', 'end', 'diameter']
+
+
+ @property
+ def flashed(self):
+ return False
+
+ @property
+ def bounding_box(self):
+ if self._bounding_box is None:
+ radius = self.diameter / 2.
+ min_x = min(self.start[0], self.end[0]) - radius
+ max_x = max(self.start[0], self.end[0]) + radius
+ min_y = min(self.start[1], self.end[1]) - radius
+ max_y = max(self.start[1], self.end[1]) + radius
+ self._bounding_box = ((min_x, max_x), (min_y, max_y))
+ return self._bounding_box
+
+ def offset(self, x_offset=0, y_offset=0):
+ self.start = tuple(map(add, self.start, (x_offset, y_offset)))
+ self.end = tuple(map(add, self.end, (x_offset, y_offset)))
+
+
+class TestRecord(Primitive):
+ """ Netlist Test record
+ """
+
+ def __init__(self, position, net_name, layer, **kwargs):
+ super(TestRecord, self).__init__(**kwargs)
+ validate_coordinates(position)
+ self.position = position
+ self.net_name = net_name
+ self.layer = layer
+ self._to_convert = ['position']
diff --git a/gerber/render/__init__.py b/gerber/render/__init__.py
new file mode 100644
index 0000000..c7dbdd5
--- /dev/null
+++ b/gerber/render/__init__.py
@@ -0,0 +1,31 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+gerber.render
+============
+**Gerber Renderers**
+
+This module provides contexts for rendering images of gerber layers. Currently
+SVG is the only supported format.
+"""
+
+from .render import RenderSettings
+from .cairo_backend import GerberCairoContext
+
+available_renderers = {
+ 'cairo': GerberCairoContext,
+}
diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py
new file mode 100644
index 0000000..e1d1408
--- /dev/null
+++ b/gerber/render/cairo_backend.py
@@ -0,0 +1,616 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+try:
+ import cairo
+except ImportError:
+ import cairocffi as cairo
+
+from operator import mul
+import tempfile
+import copy
+import os
+
+from .render import GerberContext, RenderSettings
+from .theme import THEMES
+from ..primitives import *
+from ..utils import rotate_point
+
+from io import BytesIO
+
+
+class GerberCairoContext(GerberContext):
+
+ def __init__(self, scale=300):
+ super(GerberCairoContext, self).__init__()
+ self.scale = (scale, scale)
+ self.surface = None
+ self.surface_buffer = None
+ self.ctx = None
+ self.active_layer = None
+ self.active_matrix = None
+ self.output_ctx = None
+ self.has_bg = False
+ self.origin_in_inch = None
+ self.size_in_inch = None
+ self._xform_matrix = None
+ self._render_count = 0
+
+ @property
+ def origin_in_pixels(self):
+ return (self.scale_point(self.origin_in_inch)
+ if self.origin_in_inch is not None else (0.0, 0.0))
+
+ @property
+ def size_in_pixels(self):
+ return (self.scale_point(self.size_in_inch)
+ if self.size_in_inch is not None else (0.0, 0.0))
+
+ def set_bounds(self, bounds, new_surface=False):
+ origin_in_inch = (bounds[0][0], bounds[1][0])
+ size_in_inch = (abs(bounds[0][1] - bounds[0][0]),
+ abs(bounds[1][1] - bounds[1][0]))
+ size_in_pixels = self.scale_point(size_in_inch)
+ self.origin_in_inch = origin_in_inch if self.origin_in_inch is None else self.origin_in_inch
+ self.size_in_inch = size_in_inch if self.size_in_inch is None else self.size_in_inch
+ self._xform_matrix = cairo.Matrix(xx=1.0, yy=-1.0,
+ x0=-self.origin_in_pixels[0],
+ y0=self.size_in_pixels[1])
+ if (self.surface is None) or new_surface:
+ self.surface_buffer = tempfile.NamedTemporaryFile()
+ self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1])
+ self.output_ctx = cairo.Context(self.surface)
+
+ def render_layer(self, layer, filename=None, settings=None, bgsettings=None,
+ verbose=False, bounds=None):
+ if settings is None:
+ settings = THEMES['default'].get(layer.layer_class, RenderSettings())
+ if bgsettings is None:
+ bgsettings = THEMES['default'].get('background', RenderSettings())
+
+ if self._render_count == 0:
+ if verbose:
+ print('[Render]: Rendering Background.')
+ self.clear()
+ if bounds is not None:
+ self.set_bounds(bounds)
+ else:
+ self.set_bounds(layer.bounds)
+ self.paint_background(bgsettings)
+ if verbose:
+ print('[Render]: Rendering {} Layer.'.format(layer.layer_class))
+ self._render_count += 1
+ self._render_layer(layer, settings)
+ if filename is not None:
+ self.dump(filename, verbose)
+
+ def render_layers(self, layers, filename, theme=THEMES['default'],
+ verbose=False, max_width=800, max_height=600):
+ """ Render a set of layers
+ """
+ # Calculate scale parameter
+ x_range = [10000, -10000]
+ y_range = [10000, -10000]
+ for layer in layers:
+ bounds = layer.bounds
+ if bounds is not None:
+ layer_x, layer_y = bounds
+ x_range[0] = min(x_range[0], layer_x[0])
+ x_range[1] = max(x_range[1], layer_x[1])
+ y_range[0] = min(y_range[0], layer_y[0])
+ y_range[1] = max(y_range[1], layer_y[1])
+ width = x_range[1] - x_range[0]
+ height = y_range[1] - y_range[0]
+
+ scale = math.floor(min(float(max_width)/width, float(max_height)/height))
+ self.scale = (scale, scale)
+
+ self.clear()
+
+ # Render layers
+ bgsettings = theme['background']
+ for layer in layers:
+ settings = theme.get(layer.layer_class, RenderSettings())
+ self.render_layer(layer, settings=settings, bgsettings=bgsettings,
+ verbose=verbose)
+ self.dump(filename, verbose)
+
+ def dump(self, filename=None, verbose=False):
+ """ Save image as `filename`
+ """
+ try:
+ is_svg = os.path.splitext(filename.lower())[1] == '.svg'
+ except:
+ is_svg = False
+ if verbose:
+ print('[Render]: Writing image to {}'.format(filename))
+ if is_svg:
+ self.surface.finish()
+ self.surface_buffer.flush()
+ with open(filename, "wb") as f:
+ self.surface_buffer.seek(0)
+ f.write(self.surface_buffer.read())
+ f.flush()
+ else:
+ return self.surface.write_to_png(filename)
+
+ def dump_str(self):
+ """ Return a byte-string containing the rendered image.
+ """
+ fobj = BytesIO()
+ self.surface.write_to_png(fobj)
+ return fobj.getvalue()
+
+ def dump_svg_str(self):
+ """ Return a string containg the rendered SVG.
+ """
+ self.surface.finish()
+ self.surface_buffer.flush()
+ return self.surface_buffer.read()
+
+ def clear(self):
+ self.surface = None
+ self.output_ctx = None
+ self.has_bg = False
+ self.origin_in_inch = None
+ self.size_in_inch = None
+ self._xform_matrix = None
+ self._render_count = 0
+ self.surface_buffer = None
+
+ def _new_mask(self):
+ class Mask:
+ def __enter__(msk):
+ size_in_pixels = self.size_in_pixels
+ msk.surface = cairo.SVGSurface(None, size_in_pixels[0],
+ size_in_pixels[1])
+ msk.ctx = cairo.Context(msk.surface)
+ msk.ctx.translate(-self.origin_in_pixels[0], -self.origin_in_pixels[1])
+ return msk
+
+
+ def __exit__(msk, exc_type, exc_val, traceback):
+ if hasattr(msk.surface, 'finish'):
+ msk.surface.finish()
+
+ return Mask()
+
+ def _render_layer(self, layer, settings):
+ self.invert = settings.invert
+ # Get a new clean layer to render on
+ self.new_render_layer(mirror=settings.mirror)
+ for prim in layer.primitives:
+ self.render(prim)
+ # Add layer to image
+ self.flatten(settings.color, settings.alpha)
+
+ def _render_line(self, line, color):
+ start = self.scale_point(line.start)
+ end = self.scale_point(line.end)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and line.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+
+ with self._clip_primitive(line):
+ with self._new_mask() as mask:
+ if isinstance(line.aperture, Circle):
+ width = line.aperture.diameter
+ mask.ctx.set_line_width(width * self.scale[0])
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ mask.ctx.move_to(*start)
+ mask.ctx.line_to(*end)
+ mask.ctx.stroke()
+
+ elif hasattr(line, 'vertices') and line.vertices is not None:
+ points = [self.scale_point(x) for x in line.vertices]
+ mask.ctx.set_line_width(0)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_arc(self, arc, color):
+ center = self.scale_point(arc.center)
+ start = self.scale_point(arc.start)
+ end = self.scale_point(arc.end)
+ radius = self.scale[0] * arc.radius
+ two_pi = 2 * math.pi
+ angle1 = (arc.start_angle + two_pi) % two_pi
+ angle2 = (arc.end_angle + two_pi) % two_pi
+ if angle1 == angle2 and arc.quadrant_mode != 'single-quadrant':
+ # Make the angles slightly different otherwise Cario will draw nothing
+ angle2 -= 0.000000001
+ if isinstance(arc.aperture, Circle):
+ width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001
+ else:
+ width = max(arc.aperture.width, arc.aperture.height, 0.001)
+
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and arc.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._clip_primitive(arc):
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(width * self.scale[0])
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND if isinstance(arc.aperture, Circle) else cairo.LINE_CAP_SQUARE)
+ mask.ctx.move_to(*start) # You actually have to do this...
+ if arc.direction == 'counterclockwise':
+ mask.ctx.arc(center[0], center[1], radius, angle1, angle2)
+ else:
+ mask.ctx.arc_negative(center[0], center[1], radius,
+ angle1, angle2)
+ mask.ctx.move_to(*end) # ...lame
+ mask.ctx.stroke()
+
+ #if isinstance(arc.aperture, Rectangle):
+ # print("Flash Rectangle Ends")
+ # print(arc.aperture.rotation * 180/math.pi)
+ # rect = arc.aperture
+ # width = self.scale[0] * rect.width
+ # height = self.scale[1] * rect.height
+ # for point, angle in zip((start, end), (angle1, angle2)):
+ # print("{} w {} h{}".format(point, rect.width, rect.height))
+ # mask.ctx.rectangle(point[0] - width/2.0,
+ # point[1] - height/2.0, width, height)
+ # mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_region(self, region, color):
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert) and region.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._clip_primitive(region):
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(0)
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ mask.ctx.move_to(*self.scale_point(region.primitives[0].start))
+ for prim in region.primitives:
+ if isinstance(prim, Line):
+ mask.ctx.line_to(*self.scale_point(prim.end))
+ else:
+ center = self.scale_point(prim.center)
+ radius = self.scale[0] * prim.radius
+ angle1 = prim.start_angle
+ angle2 = prim.end_angle
+ if prim.direction == 'counterclockwise':
+ mask.ctx.arc(center[0], center[1], radius,
+ angle1, angle2)
+ else:
+ mask.ctx.arc_negative(center[0], center[1], radius,
+ angle1, angle2)
+ mask.ctx.fill()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_circle(self, circle, color):
+ center = self.scale_point(circle.position)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and circle.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._clip_primitive(circle):
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(0)
+ mask.ctx.arc(center[0], center[1], (circle.radius * self.scale[0]), 0, (2 * math.pi))
+ mask.ctx.fill()
+
+ if hasattr(circle, 'hole_diameter') and circle.hole_diameter is not None and circle.hole_diameter > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR)
+ mask.ctx.arc(center[0], center[1], circle.hole_radius * self.scale[0], 0, 2 * math.pi)
+ mask.ctx.fill()
+
+ if (hasattr(circle, 'hole_width') and hasattr(circle, 'hole_height')
+ and circle.hole_width is not None and circle.hole_height is not None
+ and circle.hole_width > 0 and circle.hole_height > 0):
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if circle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height = self.scale_point((circle.hole_width, circle.hole_height))
+ lower_left = rotate_point(
+ (center[0] - width / 2.0, center[1] - height / 2.0),
+ circle.rotation, center)
+ lower_right = rotate_point((center[0] + width / 2.0, center[1] - height / 2.0),
+ circle.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0),
+ circle.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0),
+ circle.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_rectangle(self, rectangle, color):
+ lower_left = self.scale_point(rectangle.lower_left)
+ width, height = tuple([abs(coord) for coord in
+ self.scale_point((rectangle.width,
+ rectangle.height))])
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and rectangle.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._clip_primitive(rectangle):
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(0)
+ mask.ctx.rectangle(lower_left[0], lower_left[1], width, height)
+ mask.ctx.fill()
+
+ center = self.scale_point(rectangle.position)
+ if rectangle.hole_diameter > 0:
+ # Render the center clear
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if rectangle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+
+ mask.ctx.arc(center[0], center[1], rectangle.hole_radius * self.scale[0], 0, 2 * math.pi)
+ mask.ctx.fill()
+
+ if rectangle.hole_width > 0 and rectangle.hole_height > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if rectangle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height = self.scale_point((rectangle.hole_width, rectangle.hole_height))
+ lower_left = rotate_point((center[0] - width/2.0, center[1] - height/2.0), rectangle.rotation, center)
+ lower_right = rotate_point((center[0] + width/2.0, center[1] - height/2.0), rectangle.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0), rectangle.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0), rectangle.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_obround(self, obround, color):
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and obround.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._clip_primitive(obround):
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(0)
+
+ # Render circles
+ for circle in (obround.subshapes['circle1'], obround.subshapes['circle2']):
+ center = self.scale_point(circle.position)
+ mask.ctx.arc(center[0], center[1], (circle.radius * self.scale[0]), 0, (2 * math.pi))
+ mask.ctx.fill()
+
+ # Render Rectangle
+ rectangle = obround.subshapes['rectangle']
+ lower_left = self.scale_point(rectangle.lower_left)
+ width, height = tuple([abs(coord) for coord in
+ self.scale_point((rectangle.width,
+ rectangle.height))])
+ mask.ctx.rectangle(lower_left[0], lower_left[1], width, height)
+ mask.ctx.fill()
+
+ center = self.scale_point(obround.position)
+ if obround.hole_diameter > 0:
+ # Render the center clear
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR)
+ mask.ctx.arc(center[0], center[1], obround.hole_radius * self.scale[0], 0, 2 * math.pi)
+ mask.ctx.fill()
+
+ if obround.hole_width > 0 and obround.hole_height > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if rectangle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height =self.scale_point((obround.hole_width, obround.hole_height))
+ lower_left = rotate_point((center[0] - width / 2.0, center[1] - height / 2.0),
+ obround.rotation, center)
+ lower_right = rotate_point((center[0] + width / 2.0, center[1] - height / 2.0),
+ obround.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0),
+ obround.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0),
+ obround.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_polygon(self, polygon, color):
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and polygon.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._clip_primitive(polygon):
+ with self._new_mask() as mask:
+
+ vertices = polygon.vertices
+ mask.ctx.set_line_width(0)
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ # Start from before the end so it is easy to iterate and make sure
+ # it is closed
+ mask.ctx.move_to(*self.scale_point(vertices[-1]))
+ for v in vertices:
+ mask.ctx.line_to(*self.scale_point(v))
+ mask.ctx.fill()
+
+ center = self.scale_point(polygon.position)
+ if polygon.hole_radius > 0:
+ # Render the center clear
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if polygon.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ mask.ctx.set_line_width(0)
+ mask.ctx.arc(center[0],
+ center[1],
+ polygon.hole_radius * self.scale[0], 0, 2 * math.pi)
+ mask.ctx.fill()
+
+ if polygon.hole_width > 0 and polygon.hole_height > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if polygon.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height = self.scale_point((polygon.hole_width, polygon.hole_height))
+ lower_left = rotate_point((center[0] - width / 2.0, center[1] - height / 2.0),
+ polygon.rotation, center)
+ lower_right = rotate_point((center[0] + width / 2.0, center[1] - height / 2.0),
+ polygon.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0),
+ polygon.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0),
+ polygon.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_drill(self, circle, color=None):
+ color = color if color is not None else self.drill_color
+ self._render_circle(circle, color)
+
+ def _render_slot(self, slot, color):
+ start = map(mul, slot.start, self.scale)
+ end = map(mul, slot.end, self.scale)
+
+ width = slot.diameter
+
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if slot.level_polarity == 'dark' and
+ (not self.invert) else cairo.OPERATOR_CLEAR)
+ with self._clip_primitive(slot):
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(width * self.scale[0])
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ mask.ctx.move_to(*start)
+ mask.ctx.line_to(*end)
+ mask.ctx.stroke()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
+ def _render_amgroup(self, amgroup, color):
+ for primitive in amgroup.primitives:
+ self.render(primitive)
+
+ def _render_test_record(self, primitive, color):
+ position = [pos + origin for pos, origin in
+ zip(primitive.position, self.origin_in_inch)]
+ self.ctx.select_font_face(
+ 'monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD)
+ self.ctx.set_font_size(13)
+ self._render_circle(Circle(position, 0.015), color)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if primitive.level_polarity == 'dark' and
+ (not self.invert) else cairo.OPERATOR_CLEAR)
+ self.ctx.move_to(*[self.scale[0] * (coord + 0.015) for coord in position])
+ self.ctx.scale(1, -1)
+ self.ctx.show_text(primitive.net_name)
+ self.ctx.scale(1, -1)
+
+ def new_render_layer(self, color=None, mirror=False):
+ size_in_pixels = self.scale_point(self.size_in_inch)
+ matrix = copy.copy(self._xform_matrix)
+ layer = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1])
+ ctx = cairo.Context(layer)
+
+ if self.invert:
+ ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_OVER)
+ ctx.paint()
+ if mirror:
+ matrix.xx = -1.0
+ matrix.x0 = self.origin_in_pixels[0] + self.size_in_pixels[0]
+ self.ctx = ctx
+ self.ctx.set_matrix(matrix)
+ self.active_layer = layer
+ self.active_matrix = matrix
+
+ def flatten(self, color=None, alpha=None):
+ color = color if color is not None else self.color
+ alpha = alpha if alpha is not None else self.alpha
+ self.output_ctx.set_source_rgba(color[0], color[1], color[2], alpha)
+ self.output_ctx.mask_surface(self.active_layer)
+ self.ctx = None
+ self.active_layer = None
+ self.active_matrix = None
+
+ def paint_background(self, settings=None):
+ color = settings.color if settings is not None else self.background_color
+ alpha = settings.alpha if settings is not None else 1.0
+ if not self.has_bg:
+ self.has_bg = True
+ self.output_ctx.set_source_rgba(color[0], color[1], color[2], alpha)
+ self.output_ctx.paint()
+
+ def _clip_primitive(self, primitive):
+ """ Clip rendering context to pixel-aligned bounding box
+
+ Calculates pixel- and axis- aligned bounding box, and clips current
+ context to that region. Improves rendering speed significantly. This
+ returns a context manager, use as follows:
+
+ with self._clip_primitive(some_primitive):
+ do_rendering_stuff()
+ do_more_rendering stuff(with, arguments)
+
+ The context manager will reset the context's clipping region when it
+ goes out of scope.
+
+ """
+ class Clip:
+ def __init__(clp, primitive):
+ x_range, y_range = primitive.bounding_box
+ xmin, xmax = x_range
+ ymin, ymax = y_range
+
+ # Round bounds to the nearest pixel outside of the primitive
+ clp.xmin = math.floor(self.scale[0] * xmin)
+ clp.xmax = math.ceil(self.scale[0] * xmax)
+
+ # We need to offset Y to take care of the difference in y-pos
+ # caused by flipping the axis.
+ clp.ymin = math.floor(
+ (self.scale[1] * ymin) - math.ceil(self.origin_in_pixels[1]))
+ clp.ymax = math.floor(
+ (self.scale[1] * ymax) - math.floor(self.origin_in_pixels[1]))
+
+ # Calculate width and height, rounded to the nearest pixel
+ clp.width = abs(clp.xmax - clp.xmin)
+ clp.height = abs(clp.ymax - clp.ymin)
+
+ def __enter__(clp):
+ # Clip current context to primitive's bounding box
+ self.ctx.rectangle(clp.xmin, clp.ymin, clp.width, clp.height)
+ self.ctx.clip()
+
+ def __exit__(clp, exc_type, exc_val, traceback):
+ # Reset context clip region
+ self.ctx.reset_clip()
+
+ return Clip(primitive)
+
+ def scale_point(self, point):
+ return tuple([coord * scale for coord, scale in zip(point, self.scale)])
diff --git a/gerber/render/excellon_backend.py b/gerber/render/excellon_backend.py
new file mode 100644
index 0000000..765d68c
--- /dev/null
+++ b/gerber/render/excellon_backend.py
@@ -0,0 +1,188 @@
+
+from .render import GerberContext
+from ..excellon import DrillSlot
+from ..excellon_statements import *
+
+class ExcellonContext(GerberContext):
+
+ MODE_DRILL = 1
+ MODE_SLOT =2
+
+ def __init__(self, settings):
+ GerberContext.__init__(self)
+
+ # Statements that we write
+ self.comments = []
+ self.header = []
+ self.tool_def = []
+ self.body_start = [RewindStopStmt()]
+ self.body = []
+ self.start = [HeaderBeginStmt()]
+
+ # Current tool and position
+ self.handled_tools = set()
+ self.cur_tool = None
+ self.drill_mode = ExcellonContext.MODE_DRILL
+ self.drill_down = False
+ self._pos = (None, None)
+
+ self.settings = settings
+
+ self._start_header()
+ self._start_comments()
+
+ def _start_header(self):
+ """Create the header from the settings"""
+
+ self.header.append(UnitStmt.from_settings(self.settings))
+
+ if self.settings.notation == 'incremental':
+ raise NotImplementedError('Incremental mode is not implemented')
+ else:
+ self.body.append(AbsoluteModeStmt())
+
+ def _start_comments(self):
+
+ # Write the digits used - this isn't valid Excellon statement, so we write as a comment
+ self.comments.append(CommentStmt('FILE_FORMAT=%d:%d' % (self.settings.format[0], self.settings.format[1])))
+
+ def _get_end(self):
+ """How we end depends on our mode"""
+
+ end = []
+
+ if self.drill_down:
+ end.append(RetractWithClampingStmt())
+ end.append(RetractWithoutClampingStmt())
+
+ end.append(EndOfProgramStmt())
+
+ return end
+
+ @property
+ def statements(self):
+ return self.start + self.comments + self.header + self.body_start + self.body + self._get_end()
+
+ def set_bounds(self, bounds, *args, **kwargs):
+ pass
+
+ def paint_background(self):
+ pass
+
+ def _render_line(self, line, color):
+ raise ValueError('Invalid Excellon object')
+ def _render_arc(self, arc, color):
+ raise ValueError('Invalid Excellon object')
+
+ def _render_region(self, region, color):
+ raise ValueError('Invalid Excellon object')
+
+ def _render_level_polarity(self, region):
+ raise ValueError('Invalid Excellon object')
+
+ def _render_circle(self, circle, color):
+ raise ValueError('Invalid Excellon object')
+
+ def _render_rectangle(self, rectangle, color):
+ raise ValueError('Invalid Excellon object')
+
+ def _render_obround(self, obround, color):
+ raise ValueError('Invalid Excellon object')
+
+ def _render_polygon(self, polygon, color):
+ raise ValueError('Invalid Excellon object')
+
+ def _simplify_point(self, point):
+ return (point[0] if point[0] != self._pos[0] else None, point[1] if point[1] != self._pos[1] else None)
+
+ def _render_drill(self, drill, color):
+
+ if self.drill_mode != ExcellonContext.MODE_DRILL:
+ self._start_drill_mode()
+
+ tool = drill.hit.tool
+ if not tool in self.handled_tools:
+ self.handled_tools.add(tool)
+ self.header.append(ExcellonTool.from_tool(tool))
+
+ if tool != self.cur_tool:
+ self.body.append(ToolSelectionStmt(tool.number))
+ self.cur_tool = tool
+
+ point = self._simplify_point(drill.position)
+ self._pos = drill.position
+ self.body.append(CoordinateStmt.from_point(point))
+
+ def _start_drill_mode(self):
+ """
+ If we are not in drill mode, then end the ROUT so we can do basic drilling
+ """
+
+ if self.drill_mode == ExcellonContext.MODE_SLOT:
+
+ # Make sure we are retracted before changing modes
+ last_cmd = self.body[-1]
+ if self.drill_down:
+ self.body.append(RetractWithClampingStmt())
+ self.body.append(RetractWithoutClampingStmt())
+ self.drill_down = False
+
+ # Switch to drill mode
+ self.body.append(DrillModeStmt())
+ self.drill_mode = ExcellonContext.MODE_DRILL
+
+ else:
+ raise ValueError('Should be in slot mode')
+
+ def _render_slot(self, slot, color):
+
+ # Set the tool first, before we might go into drill mode
+ tool = slot.hit.tool
+ if not tool in self.handled_tools:
+ self.handled_tools.add(tool)
+ self.header.append(ExcellonTool.from_tool(tool))
+
+ if tool != self.cur_tool:
+ self.body.append(ToolSelectionStmt(tool.number))
+ self.cur_tool = tool
+
+ # Two types of drilling - normal drill and slots
+ if slot.hit.slot_type == DrillSlot.TYPE_ROUT:
+
+ # For ROUT, setting the mode is part of the actual command.
+
+ # Are we in the right position?
+ if slot.start != self._pos:
+ if self.drill_down:
+ # We need to move into the right position, so retract
+ self.body.append(RetractWithClampingStmt())
+ self.drill_down = False
+
+ # Move to the right spot
+ point = self._simplify_point(slot.start)
+ self._pos = slot.start
+ self.body.append(CoordinateStmt.from_point(point, mode="ROUT"))
+
+ # Now we are in the right spot, so drill down
+ if not self.drill_down:
+ self.body.append(ZAxisRoutPositionStmt())
+ self.drill_down = True
+
+ # Do a linear move from our current position to the end position
+ point = self._simplify_point(slot.end)
+ self._pos = slot.end
+ self.body.append(CoordinateStmt.from_point(point, mode="LINEAR"))
+
+ self.drill_mode = ExcellonContext.MODE_SLOT
+
+ else:
+ # This is a G85 slot, so do this in normally drilling mode
+ if self.drill_mode != ExcellonContext.MODE_DRILL:
+ self._start_drill_mode()
+
+ # Slots don't use simplified points
+ self._pos = slot.end
+ self.body.append(SlotStmt.from_points(slot.start, slot.end))
+
+ def _render_inverted_layer(self):
+ pass
diff --git a/gerber/render/render.py b/gerber/render/render.py
new file mode 100644
index 0000000..580a7ea
--- /dev/null
+++ b/gerber/render/render.py
@@ -0,0 +1,246 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+# Modified from code by Paulo Henrique Silva <ph.silva@gmail.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Rendering
+============
+**Gerber (RS-274X) and Excellon file rendering**
+
+Render Gerber and Excellon files to a variety of formats. The render module
+currently supports SVG rendering using the `svgwrite` library.
+"""
+
+
+from ..primitives import *
+from ..gerber_statements import (CommentStmt, UnknownStmt, EofStmt, ParamStmt,
+ CoordStmt, ApertureStmt, RegionModeStmt,
+ QuadrantModeStmt,)
+
+
+class GerberContext(object):
+ """ Gerber rendering context base class
+
+ Provides basic functionality and API for rendering gerber files. Medium-
+ specific renderers should subclass GerberContext and implement the drawing
+ functions. Colors are stored internally as 32-bit RGB and may need to be
+ converted to a native format in the rendering subclass.
+
+ Attributes
+ ----------
+ units : string
+ Measurement units. 'inch' or 'metric'
+
+ color : tuple (<float>, <float>, <float>)
+ Color used for rendering as a tuple of normalized (red, green, blue)
+ values.
+
+ drill_color : tuple (<float>, <float>, <float>)
+ Color used for rendering drill hits. Format is the same as for `color`.
+
+ background_color : tuple (<float>, <float>, <float>)
+ Color of the background. Used when exposing areas in 'clear' level
+ polarity mode. Format is the same as for `color`.
+
+ alpha : float
+ Rendering opacity. Between 0.0 (transparent) and 1.0 (opaque.)
+ """
+
+ def __init__(self, units='inch'):
+ self._units = units
+ self._color = (0.7215, 0.451, 0.200)
+ self._background_color = (0.0, 0.0, 0.0)
+ self._drill_color = (0.0, 0.0, 0.0)
+ self._alpha = 1.0
+ self._invert = False
+ self.ctx = None
+
+ @property
+ def units(self):
+ return self._units
+
+ @units.setter
+ def units(self, units):
+ if units not in ('inch', 'metric'):
+ raise ValueError('Units may be "inch" or "metric"')
+ self._units = units
+
+ @property
+ def color(self):
+ return self._color
+
+ @color.setter
+ def color(self, color):
+ if len(color) != 3:
+ raise TypeError('Color must be a tuple of R, G, and B values')
+ for c in color:
+ if c < 0 or c > 1:
+ raise ValueError('Channel values must be between 0.0 and 1.0')
+ self._color = color
+
+ @property
+ def drill_color(self):
+ return self._drill_color
+
+ @drill_color.setter
+ def drill_color(self, color):
+ if len(color) != 3:
+ raise TypeError('Drill color must be a tuple of R, G, and B values')
+ for c in color:
+ if c < 0 or c > 1:
+ raise ValueError('Channel values must be between 0.0 and 1.0')
+ self._drill_color = color
+
+ @property
+ def background_color(self):
+ return self._background_color
+
+ @background_color.setter
+ def background_color(self, color):
+ if len(color) != 3:
+ raise TypeError('Background color must be a tuple of R, G, and B values')
+ for c in color:
+ if c < 0 or c > 1:
+ raise ValueError('Channel values must be between 0.0 and 1.0')
+ self._background_color = color
+
+ @property
+ def alpha(self):
+ return self._alpha
+
+ @alpha.setter
+ def alpha(self, alpha):
+ if alpha < 0 or alpha > 1:
+ raise ValueError('Alpha must be between 0.0 and 1.0')
+ self._alpha = alpha
+
+ @property
+ def invert(self):
+ return self._invert
+
+ @invert.setter
+ def invert(self, invert):
+ self._invert = invert
+
+ def render(self, primitive):
+ if not primitive:
+ return
+
+ self.pre_render_primitive(primitive)
+
+ color = self.color
+ if isinstance(primitive, Line):
+ self._render_line(primitive, color)
+ elif isinstance(primitive, Arc):
+ self._render_arc(primitive, color)
+ elif isinstance(primitive, Region):
+ self._render_region(primitive, color)
+ elif isinstance(primitive, Circle):
+ self._render_circle(primitive, color)
+ elif isinstance(primitive, Rectangle):
+ self._render_rectangle(primitive, color)
+ elif isinstance(primitive, Obround):
+ self._render_obround(primitive, color)
+ elif isinstance(primitive, Polygon):
+ self._render_polygon(primitive, color)
+ elif isinstance(primitive, Drill):
+ self._render_drill(primitive, self.color)
+ elif isinstance(primitive, Slot):
+ self._render_slot(primitive, self.color)
+ elif isinstance(primitive, AMGroup):
+ self._render_amgroup(primitive, color)
+ elif isinstance(primitive, Outline):
+ self._render_region(primitive, color)
+ elif isinstance(primitive, TestRecord):
+ self._render_test_record(primitive, color)
+
+ self.post_render_primitive(primitive)
+
+ def set_bounds(self, bounds, *args, **kwargs):
+ """Called by the renderer to set the extents of the file to render.
+
+ Parameters
+ ----------
+ bounds: Tuple[Tuple[float, float], Tuple[float, float]]
+ ( (x_min, x_max), (y_min, y_max)
+ """
+ pass
+
+ def paint_background(self):
+ pass
+
+ def new_render_layer(self):
+ pass
+
+ def flatten(self):
+ pass
+
+ def pre_render_primitive(self, primitive):
+ """
+ Called before rendering a primitive. Use the callback to perform some action before rendering
+ a primitive, for example adding a comment.
+ """
+ return
+
+ def post_render_primitive(self, primitive):
+ """
+ Called after rendering a primitive. Use the callback to perform some action after rendering
+ a primitive
+ """
+ return
+
+
+ def _render_line(self, primitive, color):
+ pass
+
+ def _render_arc(self, primitive, color):
+ pass
+
+ def _render_region(self, primitive, color):
+ pass
+
+ def _render_circle(self, primitive, color):
+ pass
+
+ def _render_rectangle(self, primitive, color):
+ pass
+
+ def _render_obround(self, primitive, color):
+ pass
+
+ def _render_polygon(self, primitive, color):
+ pass
+
+ def _render_drill(self, primitive, color):
+ pass
+
+ def _render_slot(self, primitive, color):
+ pass
+
+ def _render_amgroup(self, primitive, color):
+ pass
+
+ def _render_test_record(self, primitive, color):
+ pass
+
+
+class RenderSettings(object):
+ def __init__(self, color=(0.0, 0.0, 0.0), alpha=1.0, invert=False,
+ mirror=False):
+ self.color = color
+ self.alpha = alpha
+ self.invert = invert
+ self.mirror = mirror
diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py
new file mode 100644
index 0000000..c7af2ea
--- /dev/null
+++ b/gerber/render/rs274x_backend.py
@@ -0,0 +1,510 @@
+"""Renders an in-memory Gerber file to statements which can be written to a string
+"""
+from copy import deepcopy
+
+try:
+ from cStringIO import StringIO
+except(ImportError):
+ from io import StringIO
+
+from .render import GerberContext
+from ..am_statements import *
+from ..gerber_statements import *
+from ..primitives import AMGroup, Arc, Circle, Line, Obround, Outline, Polygon, Rectangle
+
+
+class AMGroupContext(object):
+ '''A special renderer to generate aperature macros from an AMGroup'''
+
+ def __init__(self):
+ self.statements = []
+
+ def render(self, amgroup, name):
+
+ if amgroup.stmt:
+ # We know the statement it was generated from, so use that to create the AMParamStmt
+ # It will give a much better result
+
+ stmt = deepcopy(amgroup.stmt)
+ stmt.name = name
+
+ return stmt
+
+ else:
+ # Clone ourselves, then offset by the psotion so that
+ # our render doesn't have to consider offset. Just makes things simpler
+ nooffset_group = deepcopy(amgroup)
+ nooffset_group.position = (0, 0)
+
+ # Now draw the shapes
+ for primitive in nooffset_group.primitives:
+ if isinstance(primitive, Outline):
+ self._render_outline(primitive)
+ elif isinstance(primitive, Circle):
+ self._render_circle(primitive)
+ elif isinstance(primitive, Rectangle):
+ self._render_rectangle(primitive)
+ elif isinstance(primitive, Line):
+ self._render_line(primitive)
+ elif isinstance(primitive, Polygon):
+ self._render_polygon(primitive)
+ else:
+ raise ValueError('amgroup')
+
+ statement = AMParamStmt('AM', name, self._statements_to_string())
+ return statement
+
+ def _statements_to_string(self):
+ macro = ''
+
+ for statement in self.statements:
+ macro += statement.to_gerber()
+
+ return macro
+
+ def _render_circle(self, circle):
+ self.statements.append(AMCirclePrimitive.from_primitive(circle))
+
+ def _render_rectangle(self, rectangle):
+ self.statements.append(AMCenterLinePrimitive.from_primitive(rectangle))
+
+ def _render_line(self, line):
+ self.statements.append(AMVectorLinePrimitive.from_primitive(line))
+
+ def _render_outline(self, outline):
+ self.statements.append(AMOutlinePrimitive.from_primitive(outline))
+
+ def _render_polygon(self, polygon):
+ self.statements.append(AMPolygonPrimitive.from_primitive(polygon))
+
+ def _render_thermal(self, thermal):
+ pass
+
+
+class Rs274xContext(GerberContext):
+
+ def __init__(self, settings):
+ GerberContext.__init__(self)
+ self.comments = []
+ self.header = []
+ self.body = []
+ self.end = [EofStmt()]
+
+ # Current values so we know if we have to execute
+ # moves, levey changes before anything else
+ self._level_polarity = None
+ self._pos = (None, None)
+ self._func = None
+ self._quadrant_mode = None
+ self._dcode = None
+
+ # Primarily for testing and comarison to files, should we write
+ # flashes as a single statement or a move plus flash? Set to true
+ # to do in a single statement. Normally this can be false
+ self.condensed_flash = True
+
+ # When closing a region, force a D02 staement to close a region.
+ # This is normally not necessary because regions are closed with a G37
+ # staement, but this will add an extra statement for doubly close
+ # the region
+ self.explicit_region_move_end = False
+
+ self._next_dcode = 10
+ self._rects = {}
+ self._circles = {}
+ self._obrounds = {}
+ self._polygons = {}
+ self._macros = {}
+
+ self._i_none = 0
+ self._j_none = 0
+
+ self.settings = settings
+
+ self._start_header(settings)
+
+ def _start_header(self, settings):
+ self.header.append(FSParamStmt.from_settings(settings))
+ self.header.append(MOParamStmt.from_units(settings.units))
+
+ def _simplify_point(self, point):
+ return (point[0] if point[0] != self._pos[0] else None, point[1] if point[1] != self._pos[1] else None)
+
+ def _simplify_offset(self, point, offset):
+
+ if point[0] != offset[0]:
+ xoffset = point[0] - offset[0]
+ else:
+ xoffset = self._i_none
+
+ if point[1] != offset[1]:
+ yoffset = point[1] - offset[1]
+ else:
+ yoffset = self._j_none
+
+ return (xoffset, yoffset)
+
+ @property
+ def statements(self):
+ return self.comments + self.header + self.body + self.end
+
+ def set_bounds(self, bounds, *args, **kwargs):
+ pass
+
+ def paint_background(self):
+ pass
+
+ def _select_aperture(self, aperture):
+
+ # Select the right aperture if not already selected
+ if aperture:
+ if isinstance(aperture, Circle):
+ aper = self._get_circle(aperture.diameter, aperture.hole_diameter, aperture.hole_width, aperture.hole_height)
+ elif isinstance(aperture, Rectangle):
+ aper = self._get_rectangle(aperture.width, aperture.height)
+ elif isinstance(aperture, Obround):
+ aper = self._get_obround(aperture.width, aperture.height)
+ elif isinstance(aperture, AMGroup):
+ aper = self._get_amacro(aperture)
+ else:
+ raise NotImplementedError('Line with invalid aperture type')
+
+ if aper.d != self._dcode:
+ self.body.append(ApertureStmt(aper.d))
+ self._dcode = aper.d
+
+ def pre_render_primitive(self, primitive):
+
+ if hasattr(primitive, 'comment'):
+ self.body.append(CommentStmt(primitive.comment))
+
+ def _render_line(self, line, color, default_polarity='dark'):
+
+ self._select_aperture(line.aperture)
+
+ self._render_level_polarity(line, default_polarity)
+
+ # Get the right function
+ if self._func != CoordStmt.FUNC_LINEAR:
+ func = CoordStmt.FUNC_LINEAR
+ else:
+ func = None
+ self._func = CoordStmt.FUNC_LINEAR
+
+ if self._pos != line.start:
+ self.body.append(CoordStmt.move(func, self._simplify_point(line.start)))
+ self._pos = line.start
+ # We already set the function, so the next command doesn't require that
+ func = None
+
+ point = self._simplify_point(line.end)
+
+ # In some files, we see a lot of duplicated ponts, so omit those
+ if point[0] != None or point[1] != None:
+ self.body.append(CoordStmt.line(func, self._simplify_point(line.end)))
+ self._pos = line.end
+ elif func:
+ self.body.append(CoordStmt.mode(func))
+
+ def _render_arc(self, arc, color, default_polarity='dark'):
+
+ # Optionally set the quadrant mode if it has changed:
+ if arc.quadrant_mode != self._quadrant_mode:
+
+ if arc.quadrant_mode != 'multi-quadrant':
+ self.body.append(QuadrantModeStmt.single())
+ else:
+ self.body.append(QuadrantModeStmt.multi())
+
+ self._quadrant_mode = arc.quadrant_mode
+
+ # Select the right aperture if not already selected
+ self._select_aperture(arc.aperture)
+
+ self._render_level_polarity(arc, default_polarity)
+
+ # Find the right movement mode. Always set to be sure it is really right
+ dir = arc.direction
+ if dir == 'clockwise':
+ func = CoordStmt.FUNC_ARC_CW
+ self._func = CoordStmt.FUNC_ARC_CW
+ elif dir == 'counterclockwise':
+ func = CoordStmt.FUNC_ARC_CCW
+ self._func = CoordStmt.FUNC_ARC_CCW
+ else:
+ raise ValueError('Invalid circular interpolation mode')
+
+ if self._pos != arc.start:
+ # TODO I'm not sure if this is right
+ self.body.append(CoordStmt.move(CoordStmt.FUNC_LINEAR, self._simplify_point(arc.start)))
+ self._pos = arc.start
+
+ center = self._simplify_offset(arc.center, arc.start)
+ end = self._simplify_point(arc.end)
+ self.body.append(CoordStmt.arc(func, end, center))
+ self._pos = arc.end
+
+ def _render_region(self, region, color):
+
+ self._render_level_polarity(region)
+
+ self.body.append(RegionModeStmt.on())
+
+ for p in region.primitives:
+
+ # Make programmatically generated primitives within a region with
+ # unset level polarity inherit the region's level polarity
+ if isinstance(p, Line):
+ self._render_line(p, color, default_polarity=region.level_polarity)
+ else:
+ self._render_arc(p, color, default_polarity=region.level_polarity)
+
+ if self.explicit_region_move_end:
+ self.body.append(CoordStmt.move(None, None))
+
+ self.body.append(RegionModeStmt.off())
+
+ def _render_level_polarity(self, obj, default='dark'):
+ obj_polarity = obj.level_polarity if obj.level_polarity is not None else default
+ if obj_polarity != self._level_polarity:
+ self._level_polarity = obj_polarity
+ self.body.append(LPParamStmt('LP', obj_polarity))
+
+ def _render_flash(self, primitive, aperture):
+
+ self._render_level_polarity(primitive)
+
+ if aperture.d != self._dcode:
+ self.body.append(ApertureStmt(aperture.d))
+ self._dcode = aperture.d
+
+ if self.condensed_flash:
+ self.body.append(CoordStmt.flash(self._simplify_point(primitive.position)))
+ else:
+ self.body.append(CoordStmt.move(None, self._simplify_point(primitive.position)))
+ self.body.append(CoordStmt.flash(None))
+
+ self._pos = primitive.position
+
+ def _get_circle(self, diameter, hole_diameter=None, hole_width=None,
+ hole_height=None, dcode = None):
+ '''Define a circlar aperture'''
+
+ key = (diameter, hole_diameter, hole_width, hole_height)
+ aper = self._circles.get(key, None)
+
+ if not aper:
+ if not dcode:
+ dcode = self._next_dcode
+ self._next_dcode += 1
+ else:
+ self._next_dcode = max(dcode + 1, self._next_dcode)
+
+ aper = ADParamStmt.circle(dcode, diameter, hole_diameter, hole_width, hole_height)
+ self._circles[(diameter, hole_diameter, hole_width, hole_height)] = aper
+ self.header.append(aper)
+
+ return aper
+
+ def _render_circle(self, circle, color):
+
+ aper = self._get_circle(circle.diameter, circle.hole_diameter, circle.hole_width, circle.hole_height)
+ self._render_flash(circle, aper)
+
+ def _get_rectangle(self, width, height, hole_diameter=None, hole_width=None,
+ hole_height=None, dcode = None):
+ '''Get a rectanglar aperture. If it isn't defined, create it'''
+
+ key = (width, height, hole_diameter, hole_width, hole_height)
+ aper = self._rects.get(key, None)
+
+ if not aper:
+ if not dcode:
+ dcode = self._next_dcode
+ self._next_dcode += 1
+ else:
+ self._next_dcode = max(dcode + 1, self._next_dcode)
+
+ aper = ADParamStmt.rect(dcode, width, height, hole_diameter, hole_width, hole_height)
+ self._rects[(width, height, hole_diameter, hole_width, hole_height)] = aper
+ self.header.append(aper)
+
+ return aper
+
+ def _render_rectangle(self, rectangle, color):
+
+ aper = self._get_rectangle(rectangle.width, rectangle.height,
+ rectangle.hole_diameter,
+ rectangle.hole_width, rectangle.hole_height)
+ self._render_flash(rectangle, aper)
+
+ def _get_obround(self, width, height, hole_diameter=None, hole_width=None,
+ hole_height=None, dcode = None):
+
+ key = (width, height, hole_diameter, hole_width, hole_height)
+ aper = self._obrounds.get(key, None)
+
+ if not aper:
+ if not dcode:
+ dcode = self._next_dcode
+ self._next_dcode += 1
+ else:
+ self._next_dcode = max(dcode + 1, self._next_dcode)
+
+ aper = ADParamStmt.obround(dcode, width, height, hole_diameter, hole_width, hole_height)
+ self._obrounds[key] = aper
+ self.header.append(aper)
+
+ return aper
+
+ def _render_obround(self, obround, color):
+
+ aper = self._get_obround(obround.width, obround.height,
+ obround.hole_diameter, obround.hole_width,
+ obround.hole_height)
+ self._render_flash(obround, aper)
+
+ def _render_polygon(self, polygon, color):
+
+ aper = self._get_polygon(polygon.radius, polygon.sides,
+ polygon.rotation, polygon.hole_diameter,
+ polygon.hole_width, polygon.hole_height)
+ self._render_flash(polygon, aper)
+
+ def _get_polygon(self, radius, num_vertices, rotation, hole_diameter=None,
+ hole_width=None, hole_height=None, dcode = None):
+
+ key = (radius, num_vertices, rotation, hole_diameter, hole_width, hole_height)
+ aper = self._polygons.get(key, None)
+
+ if not aper:
+ if not dcode:
+ dcode = self._next_dcode
+ self._next_dcode += 1
+ else:
+ self._next_dcode = max(dcode + 1, self._next_dcode)
+
+ aper = ADParamStmt.polygon(dcode, radius * 2, num_vertices,
+ rotation, hole_diameter, hole_width,
+ hole_height)
+ self._polygons[key] = aper
+ self.header.append(aper)
+
+ return aper
+
+ def _render_drill(self, drill, color):
+ raise ValueError('Drills are not valid in RS274X files')
+
+ def _hash_amacro(self, amgroup):
+ '''Calculate a very quick hash code for deciding if we should even check AM groups for comparision'''
+
+ # We always start with an X because this forms part of the name
+ # Basically, in some cases, the name might start with a C, R, etc. That can appear
+ # to conflict with normal aperture definitions. Technically, it shouldn't because normal
+ # aperture definitions should have a comma, but in some cases the commit is omitted
+ hash = 'X'
+ for primitive in amgroup.primitives:
+
+ hash += primitive.__class__.__name__[0]
+
+ bbox = primitive.bounding_box
+ hash += str((bbox[0][1] - bbox[0][0]) * 100000)[0:2]
+ hash += str((bbox[1][1] - bbox[1][0]) * 100000)[0:2]
+
+ if hasattr(primitive, 'primitives'):
+ hash += str(len(primitive.primitives))
+
+ if isinstance(primitive, Rectangle):
+ hash += str(primitive.width * 1000000)[0:2]
+ hash += str(primitive.height * 1000000)[0:2]
+ elif isinstance(primitive, Circle):
+ hash += str(primitive.diameter * 1000000)[0:2]
+
+ if len(hash) > 20:
+ # The hash might actually get quite complex, so stop before
+ # it gets too long
+ break
+
+ return hash
+
+ def _get_amacro(self, amgroup, dcode = None):
+ # Macros are a little special since we don't have a good way to compare them quickly
+ # but in most cases, this should work
+
+ hash = self._hash_amacro(amgroup)
+ macro = None
+ macroinfo = self._macros.get(hash, None)
+
+ if macroinfo:
+
+ # We have a definition, but check that the groups actually are the same
+ for macro in macroinfo:
+
+ # Macros should have positions, right? But if the macro is selected for non-flashes
+ # then it won't have a position. This is of course a bad gerber, but they do exist
+ if amgroup.position:
+ position = amgroup.position
+ else:
+ position = (0, 0)
+
+ offset = (position[0] - macro[1].position[0], position[1] - macro[1].position[1])
+ if amgroup.equivalent(macro[1], offset):
+ break
+ macro = None
+
+ # Did we find one in the group0
+ if not macro:
+ # This is a new macro, so define it
+ if not dcode:
+ dcode = self._next_dcode
+ self._next_dcode += 1
+ else:
+ self._next_dcode = max(dcode + 1, self._next_dcode)
+
+ # Create the statements
+ # TODO
+ amrenderer = AMGroupContext()
+ statement = amrenderer.render(amgroup, hash)
+
+ self.header.append(statement)
+
+ aperdef = ADParamStmt.macro(dcode, hash)
+ self.header.append(aperdef)
+
+ # Store the dcode and the original so we can check if it really is the same
+ # If it didn't have a postition, set it to 0, 0
+ if amgroup.position == None:
+ amgroup.position = (0, 0)
+ macro = (aperdef, amgroup)
+
+ if macroinfo:
+ macroinfo.append(macro)
+ else:
+ self._macros[hash] = [macro]
+
+ return macro[0]
+
+ def _render_amgroup(self, amgroup, color):
+
+ aper = self._get_amacro(amgroup)
+ self._render_flash(amgroup, aper)
+
+ def _render_inverted_layer(self):
+ pass
+
+ def new_render_layer(self):
+ # TODO Might need to implement this
+ pass
+
+ def flatten(self):
+ # TODO Might need to implement this
+ pass
+
+ def dump(self):
+ """Write the rendered file to a StringIO steam"""
+ statements = map(lambda stmt: stmt.to_gerber(self.settings), self.statements)
+ stream = StringIO()
+ for statement in statements:
+ stream.write(statement + '\n')
+
+ return stream
diff --git a/gerber/render/theme.py b/gerber/render/theme.py
new file mode 100644
index 0000000..2f558a1
--- /dev/null
+++ b/gerber/render/theme.py
@@ -0,0 +1,112 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2013-2014 Paulo Henrique Silva <ph.silva@gmail.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+from .render import RenderSettings
+
+COLORS = {
+ 'black': (0.0, 0.0, 0.0),
+ 'white': (1.0, 1.0, 1.0),
+ 'red': (1.0, 0.0, 0.0),
+ 'green': (0.0, 1.0, 0.0),
+ 'yellow': (1.0, 1.0, 0),
+ 'blue': (0.0, 0.0, 1.0),
+ 'fr-4': (0.290, 0.345, 0.0),
+ 'green soldermask': (0.0, 0.412, 0.278),
+ 'blue soldermask': (0.059, 0.478, 0.651),
+ 'red soldermask': (0.968, 0.169, 0.165),
+ 'black soldermask': (0.298, 0.275, 0.282),
+ 'purple soldermask': (0.2, 0.0, 0.334),
+ 'enig copper': (0.694, 0.533, 0.514),
+ 'hasl copper': (0.871, 0.851, 0.839)
+}
+
+
+SPECTRUM = [
+ (0.804, 0.216, 0),
+ (0.78, 0.776, 0.251),
+ (0.545, 0.451, 0.333),
+ (0.545, 0.137, 0.137),
+ (0.329, 0.545, 0.329),
+ (0.133, 0.545, 0.133),
+ (0, 0.525, 0.545),
+ (0.227, 0.373, 0.804),
+]
+
+
+class Theme(object):
+
+ def __init__(self, name=None, **kwargs):
+ self.name = 'Default' if name is None else name
+ self.background = kwargs.get('background', RenderSettings(COLORS['fr-4']))
+ self.topsilk = kwargs.get('topsilk', RenderSettings(COLORS['white']))
+ self.bottomsilk = kwargs.get('bottomsilk', RenderSettings(COLORS['white'], mirror=True))
+ self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], alpha=0.85, invert=True))
+ self.bottommask = kwargs.get('bottommask', RenderSettings(COLORS['green soldermask'], alpha=0.85, invert=True, mirror=True))
+ self.top = kwargs.get('top', RenderSettings(COLORS['hasl copper']))
+ self.bottom = kwargs.get('bottom', RenderSettings(COLORS['hasl copper'], mirror=True))
+ self.drill = kwargs.get('drill', RenderSettings(COLORS['black']))
+ self.ipc_netlist = kwargs.get('ipc_netlist', RenderSettings(COLORS['red']))
+ self._internal = kwargs.get('internal', [RenderSettings(x) for x in SPECTRUM])
+ self._internal_gen = None
+
+ def __getitem__(self, key):
+ return getattr(self, key)
+
+ @property
+ def internal(self):
+ if not self._internal_gen:
+ self._internal_gen = self._internal_gen_func()
+ return next(self._internal_gen)
+
+ def _internal_gen_func(self):
+ for setting in self._internal:
+ yield setting
+
+ def get(self, key, noneval=None):
+ val = getattr(self, key, None)
+ return val if val is not None else noneval
+
+
+THEMES = {
+ 'default': Theme(),
+ 'OSH Park': Theme(name='OSH Park',
+ background=RenderSettings(COLORS['purple soldermask']),
+ top=RenderSettings(COLORS['enig copper']),
+ bottom=RenderSettings(COLORS['enig copper'], mirror=True),
+ topmask=RenderSettings(COLORS['purple soldermask'], alpha=0.85, invert=True),
+ bottommask=RenderSettings(COLORS['purple soldermask'], alpha=0.85, invert=True, mirror=True),
+ topsilk=RenderSettings(COLORS['white'], alpha=0.8),
+ bottomsilk=RenderSettings(COLORS['white'], alpha=0.8, mirror=True)),
+
+ 'Blue': Theme(name='Blue',
+ topmask=RenderSettings(COLORS['blue soldermask'], alpha=0.8, invert=True),
+ bottommask=RenderSettings(COLORS['blue soldermask'], alpha=0.8, invert=True)),
+
+ 'Transparent Copper': Theme(name='Transparent',
+ background=RenderSettings((0.9, 0.9, 0.9)),
+ top=RenderSettings(COLORS['red'], alpha=0.5),
+ bottom=RenderSettings(COLORS['blue'], alpha=0.5),
+ drill=RenderSettings((0.3, 0.3, 0.3))),
+
+ 'Transparent Multilayer': Theme(name='Transparent Multilayer',
+ background=RenderSettings((0, 0, 0)),
+ top=RenderSettings(SPECTRUM[0], alpha=0.8),
+ bottom=RenderSettings(SPECTRUM[-1], alpha=0.8),
+ drill=RenderSettings((0.3, 0.3, 0.3)),
+ internal=[RenderSettings(x, alpha=0.5) for x in SPECTRUM[1:-1]]),
+}
diff --git a/gerber/rs274x.py b/gerber/rs274x.py
new file mode 100644
index 0000000..afdf45f
--- /dev/null
+++ b/gerber/rs274x.py
@@ -0,0 +1,800 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+# Modified from parser.py by Paulo Henrique Silva <ph.silva@gmail.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+""" This module provides an RS-274-X class and parser.
+"""
+
+import copy
+import json
+import os
+import re
+import sys
+
+try:
+ from cStringIO import StringIO
+except(ImportError):
+ from io import StringIO
+
+from .gerber_statements import *
+from .primitives import *
+from .cam import CamFile, FileSettings
+from .utils import sq_distance
+
+
+def read(filename):
+ """ Read data from filename and return a GerberFile
+
+ Parameters
+ ----------
+ filename : string
+ Filename of file to parse
+
+ Returns
+ -------
+ file : :class:`gerber.rs274x.GerberFile`
+ A GerberFile created from the specified file.
+ """
+ return GerberParser().parse(filename)
+
+
+def loads(data, filename=None):
+ """ Generate a GerberFile object from rs274x data in memory
+
+ Parameters
+ ----------
+ data : string
+ string containing gerber file contents
+
+ filename : string, optional
+ string containing the filename of the data source
+
+ Returns
+ -------
+ file : :class:`gerber.rs274x.GerberFile`
+ A GerberFile created from the specified file.
+ """
+ return GerberParser().parse_raw(data, filename)
+
+
+class GerberFile(CamFile):
+ """ A class representing a single gerber file
+
+ The GerberFile class represents a single gerber file.
+
+ Parameters
+ ----------
+ statements : list
+ list of gerber file statements
+
+ settings : dict
+ Dictionary of gerber file settings
+
+ filename : string
+ Filename of the source gerber file
+
+ Attributes
+ ----------
+ comments: list of strings
+ List of comments contained in the gerber file.
+
+ size : tuple, (<float>, <float>)
+ Size in [self.units] of the layer described by the gerber file.
+
+ bounds: tuple, ((<float>, <float>), (<float>, <float>))
+ boundaries of the layer described by the gerber file.
+ `bounds` is stored as ((min x, max x), (min y, max y))
+
+ """
+
+ def __init__(self, statements, settings, primitives, apertures, filename=None):
+ super(GerberFile, self).__init__(statements, settings, primitives, filename)
+
+ self.apertures = apertures
+
+ @property
+ def comments(self):
+ return [comment.comment for comment in self.statements
+ if isinstance(comment, CommentStmt)]
+
+ @property
+ def size(self):
+ xbounds, ybounds = self.bounds
+ return (xbounds[1] - xbounds[0], ybounds[1] - ybounds[0])
+
+ @property
+ def bounds(self):
+ min_x = min_y = 1000000
+ max_x = max_y = -1000000
+
+ for stmt in [stmt for stmt in self.statements if isinstance(stmt, CoordStmt)]:
+ if stmt.x is not None:
+ min_x = min(stmt.x, min_x)
+ max_x = max(stmt.x, max_x)
+
+ if stmt.y is not None:
+ min_y = min(stmt.y, min_y)
+ max_y = max(stmt.y, max_y)
+
+ return ((min_x, max_x), (min_y, max_y))
+
+ @property
+ def bounding_box(self):
+ min_x = min_y = 1000000
+ max_x = max_y = -1000000
+
+ for prim in self.primitives:
+ bounds = prim.bounding_box
+ min_x = min(bounds[0][0], min_x)
+ max_x = max(bounds[0][1], max_x)
+
+ min_y = min(bounds[1][0], min_y)
+ max_y = max(bounds[1][1], max_y)
+
+ return ((min_x, max_x), (min_y, max_y))
+
+ def write(self, filename, settings=None):
+ """ Write data out to a gerber file.
+ """
+ with open(filename, 'w') as f:
+ for statement in self.statements:
+ f.write(statement.to_gerber(settings or self.settings))
+ f.write("\n")
+
+ def to_inch(self):
+ if self.units != 'inch':
+ self.units = 'inch'
+ for statement in self.statements:
+ statement.to_inch()
+ for primitive in self.primitives:
+ primitive.to_inch()
+
+ def to_metric(self):
+ if self.units != 'metric':
+ self.units = 'metric'
+ for statement in self.statements:
+ statement.to_metric()
+ for primitive in self.primitives:
+ primitive.to_metric()
+
+ def offset(self, x_offset=0, y_offset=0):
+ for statement in self.statements:
+ statement.offset(x_offset, y_offset)
+ for primitive in self.primitives:
+ primitive.offset(x_offset, y_offset)
+
+
+class GerberParser(object):
+ """ GerberParser
+ """
+ NUMBER = r"[\+-]?\d+"
+ DECIMAL = r"[\+-]?\d+([.]?\d+)?"
+ STRING = r"[a-zA-Z0-9_+\-/!?<>”’(){}.\|&@# :]+"
+ NAME = r"[a-zA-Z_$\.][a-zA-Z_$\.0-9+\-]+"
+
+ FS = r"(?P<param>FS)(?P<zero>(L|T|D))?(?P<notation>(A|I))[NG0-9]*X(?P<x>[0-7][0-7])Y(?P<y>[0-7][0-7])[DM0-9]*"
+ MO = r"(?P<param>MO)(?P<mo>(MM|IN))"
+ LP = r"(?P<param>LP)(?P<lp>(D|C))"
+ AD_CIRCLE = r"(?P<param>AD)D(?P<d>\d+)(?P<shape>C)[,]?(?P<modifiers>[^,%]*)"
+ AD_RECT = r"(?P<param>AD)D(?P<d>\d+)(?P<shape>R)[,](?P<modifiers>[^,%]*)"
+ AD_OBROUND = r"(?P<param>AD)D(?P<d>\d+)(?P<shape>O)[,](?P<modifiers>[^,%]*)"
+ AD_POLY = r"(?P<param>AD)D(?P<d>\d+)(?P<shape>P)[,](?P<modifiers>[^,%]*)"
+ AD_MACRO = r"(?P<param>AD)D(?P<d>\d+)(?P<shape>{name})[,]?(?P<modifiers>[^,%]*)".format(name=NAME)
+ AM = r"(?P<param>AM)(?P<name>{name})\*(?P<macro>[^%]*)".format(name=NAME)
+ # Include File
+ IF = r"(?P<param>IF)(?P<filename>.*)"
+
+
+ # begin deprecated
+ AS = r"(?P<param>AS)(?P<mode>(AXBY)|(AYBX))"
+ IN = r"(?P<param>IN)(?P<name>.*)"
+ IP = r"(?P<param>IP)(?P<ip>(POS|NEG))"
+ IR = r"(?P<param>IR)(?P<angle>{number})".format(number=NUMBER)
+ MI = r"(?P<param>MI)(A(?P<a>0|1))?(B(?P<b>0|1))?"
+ OF = r"(?P<param>OF)(A(?P<a>{decimal}))?(B(?P<b>{decimal}))?".format(decimal=DECIMAL)
+ SF = r"(?P<param>SF)(?P<discarded>.*)"
+ LN = r"(?P<param>LN)(?P<name>.*)"
+ DEPRECATED_UNIT = re.compile(r'(?P<mode>G7[01])\*')
+ DEPRECATED_FORMAT = re.compile(r'(?P<format>G9[01])\*')
+ # end deprecated
+
+ PARAMS = (FS, MO, LP, AD_CIRCLE, AD_RECT, AD_OBROUND, AD_POLY,
+ AD_MACRO, AM, AS, IF, IN, IP, IR, MI, OF, SF, LN)
+
+ PARAM_STMT = [re.compile(r"%?{0}\*%?".format(p)) for p in PARAMS]
+
+ COORD_FUNCTION = r"G0?[123]"
+ COORD_OP = r"D0?[123]"
+
+ COORD_STMT = re.compile((
+ r"(?P<function>{function})?"
+ r"(X(?P<x>{number}))?(Y(?P<y>{number}))?"
+ r"(I(?P<i>{number}))?(J(?P<j>{number}))?"
+ r"(?P<op>{op})?\*".format(number=NUMBER, function=COORD_FUNCTION, op=COORD_OP)))
+
+ APERTURE_STMT = re.compile(r"(?P<deprecated>(G54)|(G55))?D(?P<d>\d+)\*")
+
+ COMMENT_STMT = re.compile(r"G0?4(?P<comment>[^*]*)(\*)?")
+
+ EOF_STMT = re.compile(r"(?P<eof>M[0]?[012])\*")
+
+ REGION_MODE_STMT = re.compile(r'(?P<mode>G3[67])\*')
+ QUAD_MODE_STMT = re.compile(r'(?P<mode>G7[45])\*')
+
+ # Keep include loop from crashing us
+ INCLUDE_FILE_RECURSION_LIMIT = 10
+
+ def __init__(self):
+ self.filename = None
+ self.settings = FileSettings()
+ self.statements = []
+ self.primitives = []
+ self.apertures = {}
+ self.macros = {}
+ self.current_region = None
+ self.x = 0
+ self.y = 0
+ self.op = "D02"
+ self.aperture = 0
+ self.interpolation = 'linear'
+ self.direction = 'clockwise'
+ self.image_polarity = 'positive'
+ self.level_polarity = 'dark'
+ self.region_mode = 'off'
+ self.quadrant_mode = 'multi-quadrant'
+ self.step_and_repeat = (1, 1, 0, 0)
+ self._recursion_depth = 0
+
+ def parse(self, filename):
+ self.filename = filename
+ with open(filename, "rU") as fp:
+ data = fp.read()
+ return self.parse_raw(data, filename)
+
+ def parse_raw(self, data, filename=None):
+ self.filename = filename
+ for stmt in self._parse(self._split_commands(data)):
+ self.evaluate(stmt)
+ self.statements.append(stmt)
+
+ # Initialize statement units
+ for stmt in self.statements:
+ stmt.units = self.settings.units
+
+ return GerberFile(self.statements, self.settings, self.primitives, self.apertures.values(), filename)
+
+ def _split_commands(self, data):
+ """
+ Split the data into commands. Commands end with * (and also newline to help with some badly formatted files)
+ """
+
+ length = len(data)
+ start = 0
+ in_header = True
+
+ for cur in range(0, length):
+
+ val = data[cur]
+
+ if val == '%' and start == cur:
+ in_header = True
+ continue
+
+ if val == '\r' or val == '\n':
+ if start != cur:
+ yield data[start:cur]
+ start = cur + 1
+
+ elif not in_header and val == '*':
+ yield data[start:cur + 1]
+ start = cur + 1
+
+ elif in_header and val == '%':
+ yield data[start:cur + 1]
+ start = cur + 1
+ in_header = False
+
+ def dump_json(self):
+ stmts = {"statements": [stmt.__dict__ for stmt in self.statements]}
+ return json.dumps(stmts)
+
+ def dump_str(self):
+ string = ""
+ for stmt in self.statements:
+ string += str(stmt) + "\n"
+ return string
+
+ def _parse(self, data):
+ oldline = ''
+
+ for line in data:
+ line = oldline + line.strip()
+
+ # skip empty lines
+ if not len(line):
+ continue
+
+ # deal with multi-line parameters
+ if line.startswith("%") and not line.endswith("%") and not "%" in line[1:]:
+ oldline = line
+ continue
+
+ did_something = True # make sure we do at least one loop
+ while did_something and len(line) > 0:
+ did_something = False
+
+ # consume empty data blocks
+ if line[0] == '*':
+ line = line[1:]
+ did_something = True
+ continue
+
+ # coord
+ (coord, r) = _match_one(self.COORD_STMT, line)
+ if coord:
+ yield CoordStmt.from_dict(coord, self.settings)
+ line = r
+ did_something = True
+ continue
+
+ # aperture selection
+ (aperture, r) = _match_one(self.APERTURE_STMT, line)
+ if aperture:
+ yield ApertureStmt(**aperture)
+ did_something = True
+ line = r
+ continue
+
+ # parameter
+ (param, r) = _match_one_from_many(self.PARAM_STMT, line)
+
+ if param:
+ if param["param"] == "FS":
+ stmt = FSParamStmt.from_dict(param)
+ self.settings.zero_suppression = stmt.zero_suppression
+ self.settings.format = stmt.format
+ self.settings.notation = stmt.notation
+ yield stmt
+ elif param["param"] == "MO":
+ stmt = MOParamStmt.from_dict(param)
+ self.settings.units = stmt.mode
+ yield stmt
+ elif param["param"] == "LP":
+ yield LPParamStmt.from_dict(param)
+ elif param["param"] == "AD":
+ yield ADParamStmt.from_dict(param)
+ elif param["param"] == "AM":
+ stmt = AMParamStmt.from_dict(param)
+ stmt.units = self.settings.units
+ yield stmt
+ elif param["param"] == "OF":
+ yield OFParamStmt.from_dict(param)
+ elif param["param"] == "IF":
+ # Don't crash on include loop
+ if self._recursion_depth < self.INCLUDE_FILE_RECURSION_LIMIT:
+ self._recursion_depth += 1
+ with open(os.path.join(os.path.dirname(self.filename), param["filename"]), 'r') as f:
+ inc_data = f.read()
+ for stmt in self._parse(self._split_commands(inc_data)):
+ yield stmt
+ self._recursion_depth -= 1
+ else:
+ raise IOError("Include file nesting depth limit exceeded.")
+ elif param["param"] == "IN":
+ yield INParamStmt.from_dict(param)
+ elif param["param"] == "LN":
+ yield LNParamStmt.from_dict(param)
+ # deprecated commands AS, IN, IP, IR, MI, OF, SF, LN
+ elif param["param"] == "AS":
+ yield ASParamStmt.from_dict(param)
+ elif param["param"] == "IN":
+ yield INParamStmt.from_dict(param)
+ elif param["param"] == "IP":
+ yield IPParamStmt.from_dict(param)
+ elif param["param"] == "IR":
+ yield IRParamStmt.from_dict(param)
+ elif param["param"] == "MI":
+ yield MIParamStmt.from_dict(param)
+ elif param["param"] == "OF":
+ yield OFParamStmt.from_dict(param)
+ elif param["param"] == "SF":
+ yield SFParamStmt.from_dict(param)
+ elif param["param"] == "LN":
+ yield LNParamStmt.from_dict(param)
+ else:
+ yield UnknownStmt(line)
+
+ did_something = True
+ line = r
+ continue
+
+ # Region Mode
+ (mode, r) = _match_one(self.REGION_MODE_STMT, line)
+ if mode:
+ yield RegionModeStmt.from_gerber(line)
+ line = r
+ did_something = True
+ continue
+
+ # Quadrant Mode
+ (mode, r) = _match_one(self.QUAD_MODE_STMT, line)
+ if mode:
+ yield QuadrantModeStmt.from_gerber(line)
+ line = r
+ did_something = True
+ continue
+
+ # comment
+ (comment, r) = _match_one(self.COMMENT_STMT, line)
+ if comment:
+ yield CommentStmt(comment["comment"])
+ did_something = True
+ line = r
+ continue
+
+ # deprecated codes
+ (deprecated_unit, r) = _match_one(self.DEPRECATED_UNIT, line)
+ if deprecated_unit:
+ stmt = MOParamStmt(param="MO", mo="inch" if "G70" in
+ deprecated_unit["mode"] else "metric")
+ self.settings.units = stmt.mode
+ yield stmt
+ line = r
+ did_something = True
+ continue
+
+ (deprecated_format, r) = _match_one(self.DEPRECATED_FORMAT, line)
+ if deprecated_format:
+ yield DeprecatedStmt.from_gerber(line)
+ line = r
+ did_something = True
+ continue
+
+ # eof
+ (eof, r) = _match_one(self.EOF_STMT, line)
+ if eof:
+ yield EofStmt()
+ did_something = True
+ line = r
+ continue
+
+ if line.find('*') > 0:
+ yield UnknownStmt(line)
+ did_something = True
+ line = ""
+ continue
+
+ oldline = line
+
+ def evaluate(self, stmt):
+ """ Evaluate Gerber statement and update image accordingly.
+
+ This method is called once for each statement in the file as it
+ is parsed.
+
+ Parameters
+ ----------
+ statement : Statement
+ Gerber/Excellon statement to evaluate.
+
+ """
+ if isinstance(stmt, CoordStmt):
+ self._evaluate_coord(stmt)
+
+ elif isinstance(stmt, ParamStmt):
+ self._evaluate_param(stmt)
+
+ elif isinstance(stmt, ApertureStmt):
+ self._evaluate_aperture(stmt)
+
+ elif isinstance(stmt, (RegionModeStmt, QuadrantModeStmt)):
+ self._evaluate_mode(stmt)
+
+ elif isinstance(stmt, (CommentStmt, UnknownStmt, DeprecatedStmt, EofStmt)):
+ return
+
+ else:
+ raise Exception("Invalid statement to evaluate")
+
+ def _define_aperture(self, d, shape, modifiers):
+ aperture = None
+ if shape == 'C':
+ diameter = modifiers[0][0]
+
+ hole_diameter = 0
+ rectangular_hole = (0, 0)
+ if len(modifiers[0]) == 2:
+ hole_diameter = modifiers[0][1]
+ elif len(modifiers[0]) == 3:
+ rectangular_hole = modifiers[0][1:3]
+
+ aperture = Circle(position=None, diameter=diameter,
+ hole_diameter=hole_diameter,
+ hole_width=rectangular_hole[0],
+ hole_height=rectangular_hole[1],
+ units=self.settings.units)
+
+ elif shape == 'R':
+ width = modifiers[0][0]
+ height = modifiers[0][1]
+
+ hole_diameter = 0
+ rectangular_hole = (0, 0)
+ if len(modifiers[0]) == 3:
+ hole_diameter = modifiers[0][2]
+ elif len(modifiers[0]) == 4:
+ rectangular_hole = modifiers[0][2:4]
+
+ aperture = Rectangle(position=None, width=width, height=height,
+ hole_diameter=hole_diameter,
+ hole_width=rectangular_hole[0],
+ hole_height=rectangular_hole[1],
+ units=self.settings.units)
+ elif shape == 'O':
+ width = modifiers[0][0]
+ height = modifiers[0][1]
+
+ hole_diameter = 0
+ rectangular_hole = (0, 0)
+ if len(modifiers[0]) == 3:
+ hole_diameter = modifiers[0][2]
+ elif len(modifiers[0]) == 4:
+ rectangular_hole = modifiers[0][2:4]
+
+ aperture = Obround(position=None, width=width, height=height,
+ hole_diameter=hole_diameter,
+ hole_width=rectangular_hole[0],
+ hole_height=rectangular_hole[1],
+ units=self.settings.units)
+ elif shape == 'P':
+ outer_diameter = modifiers[0][0]
+ number_vertices = int(modifiers[0][1])
+ if len(modifiers[0]) > 2:
+ rotation = modifiers[0][2]
+ else:
+ rotation = 0
+
+ hole_diameter = 0
+ rectangular_hole = (0, 0)
+ if len(modifiers[0]) == 4:
+ hole_diameter = modifiers[0][3]
+ elif len(modifiers[0]) >= 5:
+ rectangular_hole = modifiers[0][3:5]
+
+ aperture = Polygon(position=None, sides=number_vertices,
+ radius=outer_diameter/2.0,
+ hole_diameter=hole_diameter,
+ hole_width=rectangular_hole[0],
+ hole_height=rectangular_hole[1],
+ rotation=rotation)
+ else:
+ aperture = self.macros[shape].build(modifiers)
+
+ aperture.units = self.settings.units
+ self.apertures[d] = aperture
+
+ def _evaluate_mode(self, stmt):
+ if stmt.type == 'RegionMode':
+ if self.region_mode == 'on' and stmt.mode == 'off':
+ # Sometimes we have regions that have no points. Skip those
+ if self.current_region:
+ self.primitives.append(Region(self.current_region,
+ level_polarity=self.level_polarity, units=self.settings.units))
+
+ self.current_region = None
+ self.region_mode = stmt.mode
+ elif stmt.type == 'QuadrantMode':
+ self.quadrant_mode = stmt.mode
+
+ def _evaluate_param(self, stmt):
+ if stmt.param == "FS":
+ self.settings.zero_suppression = stmt.zero_suppression
+ self.settings.format = stmt.format
+ self.settings.notation = stmt.notation
+ elif stmt.param == "MO":
+ self.settings.units = stmt.mode
+ elif stmt.param == "IP":
+ self.image_polarity = stmt.ip
+ elif stmt.param == "LP":
+ self.level_polarity = stmt.lp
+ elif stmt.param == "AM":
+ self.macros[stmt.name] = stmt
+ elif stmt.param == "AD":
+ self._define_aperture(stmt.d, stmt.shape, stmt.modifiers)
+
+ def _evaluate_coord(self, stmt):
+ x = self.x if stmt.x is None else stmt.x
+ y = self.y if stmt.y is None else stmt.y
+
+ if stmt.function in ("G01", "G1"):
+ self.interpolation = 'linear'
+ elif stmt.function in ('G02', 'G2', 'G03', 'G3'):
+ self.interpolation = 'arc'
+ self.direction = ('clockwise' if stmt.function in
+ ('G02', 'G2') else 'counterclockwise')
+
+ if stmt.only_function:
+ # Sometimes we get a coordinate statement
+ # that only sets the function. If so, don't
+ # try futher otherwise that might draw/flash something
+ return
+
+ if stmt.op:
+ self.op = stmt.op
+ else:
+ # no implicit op allowed, force here if coord block doesn't have it
+ stmt.op = self.op
+
+ if self.op == "D01" or self.op == "D1":
+ start = (self.x, self.y)
+ end = (x, y)
+
+ if self.interpolation == 'linear':
+ if self.region_mode == 'off':
+ self.primitives.append(Line(start, end,
+ self.apertures[self.aperture],
+ level_polarity=self.level_polarity,
+ units=self.settings.units))
+ else:
+ # from gerber spec revision J3, Section 4.5, page 55:
+ # The segments are not graphics objects in themselves; segments are part of region which is the graphics object. The segments have no thickness.
+ # The current aperture is associated with the region.
+ # This has no graphical effect, but allows all its attributes to
+ # be applied to the region.
+
+ if self.current_region is None:
+ self.current_region = [Line(start, end,
+ self.apertures.get(self.aperture,
+ Circle((0, 0), 0)),
+ level_polarity=self.level_polarity,
+ units=self.settings.units), ]
+ else:
+ self.current_region.append(Line(start, end,
+ self.apertures.get(self.aperture,
+ Circle((0, 0), 0)),
+ level_polarity=self.level_polarity,
+ units=self.settings.units))
+ else:
+ i = 0 if stmt.i is None else stmt.i
+ j = 0 if stmt.j is None else stmt.j
+ center = self._find_center(start, end, (i, j))
+ if self.region_mode == 'off':
+ self.primitives.append(Arc(start, end, center, self.direction,
+ self.apertures[self.aperture],
+ quadrant_mode=self.quadrant_mode,
+ level_polarity=self.level_polarity,
+ units=self.settings.units))
+ else:
+ if self.current_region is None:
+ self.current_region = [Arc(start, end, center, self.direction,
+ self.apertures.get(self.aperture, Circle((0,0), 0)),
+ quadrant_mode=self.quadrant_mode,
+ level_polarity=self.level_polarity,
+ units=self.settings.units),]
+ else:
+ self.current_region.append(Arc(start, end, center, self.direction,
+ self.apertures.get(self.aperture, Circle((0,0), 0)),
+ quadrant_mode=self.quadrant_mode,
+ level_polarity=self.level_polarity,
+ units=self.settings.units))
+ # Gerbv seems to reset interpolation mode in regions..
+ # TODO: Make sure this is right.
+ self.interpolation = 'linear'
+
+ elif self.op == "D02" or self.op == "D2":
+
+ if self.region_mode == "on":
+ # D02 in the middle of a region finishes that region and starts a new one
+ if self.current_region and len(self.current_region) > 1:
+ self.primitives.append(Region(self.current_region,
+ level_polarity=self.level_polarity,
+ units=self.settings.units))
+ self.current_region = None
+
+ elif self.op == "D03" or self.op == "D3":
+ primitive = copy.deepcopy(self.apertures[self.aperture])
+
+ if primitive is not None:
+
+ if not isinstance(primitive, AMParamStmt):
+ primitive.position = (x, y)
+ primitive.level_polarity = self.level_polarity
+ primitive.units = self.settings.units
+ self.primitives.append(primitive)
+ else:
+ # Aperture Macro
+ for am_prim in primitive.primitives:
+ renderable = am_prim.to_primitive((x, y),
+ self.level_polarity,
+ self.settings.units)
+ if renderable is not None:
+ self.primitives.append(renderable)
+ self.x, self.y = x, y
+
+ def _find_center(self, start, end, offsets):
+ """
+ In single quadrant mode, the offsets are always positive, which means
+ there are 4 possible centers. The correct center is the only one that
+ results in an arc with sweep angle of less than or equal to 90 degrees
+ in the specified direction
+ """
+ two_pi = 2 * math.pi
+ if self.quadrant_mode == 'single-quadrant':
+ # The Gerber spec says single quadrant only has one possible center,
+ # and you can detect it based on the angle. But for real files, this
+ # seems to work better - there is usually only one option that makes
+ # sense for the center (since the distance should be the same
+ # from start and end). We select the center with the least error in
+ # radius from all the options with a valid sweep angle.
+
+ sqdist_diff_min = sys.maxsize
+ center = None
+ for factors in [(1, 1), (1, -1), (-1, 1), (-1, -1)]:
+
+ test_center = (start[0] + offsets[0] * factors[0],
+ start[1] + offsets[1] * factors[1])
+
+ # Find angle from center to start and end points
+ start_angle = math.atan2(*reversed([_start - _center for _start, _center in zip(start, test_center)]))
+ end_angle = math.atan2(*reversed([_end - _center for _end, _center in zip(end, test_center)]))
+
+ # Clamp angles to 0, 2pi
+ theta0 = (start_angle + two_pi) % two_pi
+ theta1 = (end_angle + two_pi) % two_pi
+
+ # Determine sweep angle in the current arc direction
+ if self.direction == 'counterclockwise':
+ sweep_angle = abs(theta1 - theta0)
+ else:
+ theta0 += two_pi
+ sweep_angle = abs(theta0 - theta1) % two_pi
+
+ # Calculate the radius error
+ sqdist_start = sq_distance(start, test_center)
+ sqdist_end = sq_distance(end, test_center)
+ sqdist_diff = abs(sqdist_start - sqdist_end)
+
+ # Take the option with the lowest radius error from the set of
+ # options with a valid sweep angle
+ # In some rare cases, the sweep angle is numerically (10**-14) above pi/2
+ # So it is safer to compare the angles with some tolerance
+ is_lowest_radius_error = sqdist_diff < sqdist_diff_min
+ is_valid_sweep_angle = sweep_angle >= 0 and sweep_angle <= math.pi / 2.0 + 1e-6
+ if is_lowest_radius_error and is_valid_sweep_angle:
+ center = test_center
+ sqdist_diff_min = sqdist_diff
+ return center
+ else:
+ return (start[0] + offsets[0], start[1] + offsets[1])
+
+ def _evaluate_aperture(self, stmt):
+ self.aperture = stmt.d
+
+def _match_one(expr, data):
+ match = expr.match(data)
+ if match is None:
+ return ({}, None)
+ else:
+ return (match.groupdict(), data[match.end(0):])
+
+
+def _match_one_from_many(exprs, data):
+ for expr in exprs:
+ match = expr.match(data)
+ if match:
+ return (match.groupdict(), data[match.end(0):])
+
+ return ({}, None)
diff --git a/gerber/tests/__init__.py b/gerber/tests/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/gerber/tests/__init__.py
diff --git a/gerber/tests/golden/example_am_exposure_modifier.png b/gerber/tests/golden/example_am_exposure_modifier.png
new file mode 100644
index 0000000..dac951f
--- /dev/null
+++ b/gerber/tests/golden/example_am_exposure_modifier.png
Binary files differ
diff --git a/gerber/tests/golden/example_coincident_hole.png b/gerber/tests/golden/example_coincident_hole.png
new file mode 100644
index 0000000..9855b11
--- /dev/null
+++ b/gerber/tests/golden/example_coincident_hole.png
Binary files differ
diff --git a/gerber/tests/golden/example_cutin_multiple.png b/gerber/tests/golden/example_cutin_multiple.png
new file mode 100644
index 0000000..ebc1191
--- /dev/null
+++ b/gerber/tests/golden/example_cutin_multiple.png
Binary files differ
diff --git a/gerber/tests/golden/example_flash_circle.png b/gerber/tests/golden/example_flash_circle.png
new file mode 100644
index 0000000..0c407f6
--- /dev/null
+++ b/gerber/tests/golden/example_flash_circle.png
Binary files differ
diff --git a/gerber/tests/golden/example_flash_obround.png b/gerber/tests/golden/example_flash_obround.png
new file mode 100644
index 0000000..2fd4dc3
--- /dev/null
+++ b/gerber/tests/golden/example_flash_obround.png
Binary files differ
diff --git a/gerber/tests/golden/example_flash_polygon.png b/gerber/tests/golden/example_flash_polygon.png
new file mode 100644
index 0000000..89a964b
--- /dev/null
+++ b/gerber/tests/golden/example_flash_polygon.png
Binary files differ
diff --git a/gerber/tests/golden/example_flash_rectangle.png b/gerber/tests/golden/example_flash_rectangle.png
new file mode 100644
index 0000000..797e0c3
--- /dev/null
+++ b/gerber/tests/golden/example_flash_rectangle.png
Binary files differ
diff --git a/gerber/tests/golden/example_fully_coincident.png b/gerber/tests/golden/example_fully_coincident.png
new file mode 100644
index 0000000..4e522ff
--- /dev/null
+++ b/gerber/tests/golden/example_fully_coincident.png
Binary files differ
diff --git a/gerber/tests/golden/example_holes_dont_clear.png b/gerber/tests/golden/example_holes_dont_clear.png
new file mode 100644
index 0000000..7efb67b
--- /dev/null
+++ b/gerber/tests/golden/example_holes_dont_clear.png
Binary files differ
diff --git a/gerber/tests/golden/example_not_overlapping_contour.png b/gerber/tests/golden/example_not_overlapping_contour.png
new file mode 100644
index 0000000..4e522ff
--- /dev/null
+++ b/gerber/tests/golden/example_not_overlapping_contour.png
Binary files differ
diff --git a/gerber/tests/golden/example_not_overlapping_touching.png b/gerber/tests/golden/example_not_overlapping_touching.png
new file mode 100644
index 0000000..d485495
--- /dev/null
+++ b/gerber/tests/golden/example_not_overlapping_touching.png
Binary files differ
diff --git a/gerber/tests/golden/example_overlapping_contour.png b/gerber/tests/golden/example_overlapping_contour.png
new file mode 100644
index 0000000..7504311
--- /dev/null
+++ b/gerber/tests/golden/example_overlapping_contour.png
Binary files differ
diff --git a/gerber/tests/golden/example_overlapping_touching.png b/gerber/tests/golden/example_overlapping_touching.png
new file mode 100644
index 0000000..7504311
--- /dev/null
+++ b/gerber/tests/golden/example_overlapping_touching.png
Binary files differ
diff --git a/gerber/tests/golden/example_simple_contour.png b/gerber/tests/golden/example_simple_contour.png
new file mode 100644
index 0000000..564ae14
--- /dev/null
+++ b/gerber/tests/golden/example_simple_contour.png
Binary files differ
diff --git a/gerber/tests/golden/example_single_contour.png b/gerber/tests/golden/example_single_contour.png
new file mode 100644
index 0000000..3341638
--- /dev/null
+++ b/gerber/tests/golden/example_single_contour.png
Binary files differ
diff --git a/gerber/tests/golden/example_single_contour_3.png b/gerber/tests/golden/example_single_contour_3.png
new file mode 100644
index 0000000..1eecfee
--- /dev/null
+++ b/gerber/tests/golden/example_single_contour_3.png
Binary files differ
diff --git a/gerber/tests/golden/example_single_quadrant.gbr b/gerber/tests/golden/example_single_quadrant.gbr
new file mode 100644
index 0000000..b0a3166
--- /dev/null
+++ b/gerber/tests/golden/example_single_quadrant.gbr
@@ -0,0 +1,16 @@
+%FSLAX23Y23*%
+%MOIN*%
+%ADD10C,0.01*%
+G74*
+D10*
+%LPD*%
+G01X1100Y600D02*
+G03X700Y1000I-400J0D01*
+G03X300Y600I0J-400D01*
+G03X700Y200I400J0D01*
+G03X1100Y600I0J400D01*
+G01X300D02*
+X1100D01*
+X700Y200D02*
+Y1000D01*
+M02*
diff --git a/gerber/tests/golden/example_single_quadrant.png b/gerber/tests/golden/example_single_quadrant.png
new file mode 100644
index 0000000..89b763f
--- /dev/null
+++ b/gerber/tests/golden/example_single_quadrant.png
Binary files differ
diff --git a/gerber/tests/golden/example_two_square_boxes.gbr b/gerber/tests/golden/example_two_square_boxes.gbr
new file mode 100644
index 0000000..b5c60d1
--- /dev/null
+++ b/gerber/tests/golden/example_two_square_boxes.gbr
@@ -0,0 +1,16 @@
+%FSLAX25Y25*%
+%MOMM*%
+%ADD10C,0.01*%
+D10*
+%LPD*%
+G01X0Y0D02*
+X500000D01*
+Y500000D01*
+X0D01*
+Y0D01*
+X600000D02*
+X1100000D01*
+Y500000D01*
+X600000D01*
+Y0D01*
+M02*
diff --git a/gerber/tests/golden/example_two_square_boxes.png b/gerber/tests/golden/example_two_square_boxes.png
new file mode 100644
index 0000000..98d0518
--- /dev/null
+++ b/gerber/tests/golden/example_two_square_boxes.png
Binary files differ
diff --git a/gerber/tests/resources/board_outline.GKO b/gerber/tests/resources/board_outline.GKO
new file mode 100644
index 0000000..40b8c7d
--- /dev/null
+++ b/gerber/tests/resources/board_outline.GKO
@@ -0,0 +1,503 @@
+G75*
+%MOIN*%
+%OFA0B0*%
+%FSLAX24Y24*%
+%IPPOS*%
+%LPD*%
+%AMOC8*
+5,1,8,0,0,1.08239X$1,22.5*
+%
+%ADD10C,0.0000*%
+%ADD11C,0.0004*%
+D10*
+X000300Y003064D02*
+X000300Y018064D01*
+X022800Y018064D01*
+X022800Y003064D01*
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diff --git a/gerber/tests/resources/bottom_copper.GBL b/gerber/tests/resources/bottom_copper.GBL
new file mode 100644
index 0000000..0d98da3
--- /dev/null
+++ b/gerber/tests/resources/bottom_copper.GBL
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index 0000000..b06654f
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diff --git a/gerber/tests/resources/bottom_silk.GBO b/gerber/tests/resources/bottom_silk.GBO
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index 0000000..0e19197
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+X015430Y013064D03*
+X019250Y013034D03*
+X019250Y013024D03*
+X019250Y013014D03*
+X019250Y013004D03*
+X019250Y012994D03*
+X019250Y012984D03*
+X019250Y012974D03*
+X019250Y012964D03*
+X019260Y012954D03*
+X019260Y012944D03*
+X019260Y012934D03*
+X019260Y012924D03*
+X019260Y012914D03*
+X019270Y012904D03*
+X019270Y012894D03*
+X019280Y012874D03*
+X019290Y012854D03*
+D127*
+X020320Y011214D03*
+D128*
+X020160Y011254D03*
+D129*
+X020120Y011284D03*
+X020120Y013574D03*
+D130*
+X020110Y013564D03*
+X020110Y012584D03*
+X020110Y011294D03*
+D131*
+X020100Y011304D03*
+X020100Y012494D03*
+X020100Y012594D03*
+X015150Y012194D03*
+D132*
+X015150Y012164D03*
+X020090Y012484D03*
+X020090Y012614D03*
+X020090Y013534D03*
+X020090Y011314D03*
+D133*
+X020060Y011354D03*
+X020060Y012664D03*
+X020060Y013474D03*
+X015150Y012094D03*
+D134*
+X015150Y012064D03*
+X020050Y012434D03*
+X020050Y012684D03*
+X020050Y012694D03*
+X020050Y013444D03*
+X020050Y013454D03*
+X020050Y011374D03*
+D135*
+X020030Y011404D03*
+X020030Y012404D03*
+X020030Y013394D03*
+X015150Y012014D03*
+D136*
+X015150Y011994D03*
+X015150Y011984D03*
+X020020Y011424D03*
+X020020Y013354D03*
+X020020Y013364D03*
+D137*
+X020010Y013324D03*
+X020010Y013314D03*
+X020010Y012374D03*
+X020010Y012364D03*
+X020010Y011444D03*
+X015150Y011964D03*
+D138*
+X015150Y011944D03*
+X015150Y011934D03*
+X020000Y012344D03*
+X020000Y011474D03*
+X020000Y013284D03*
+D139*
+X019990Y012324D03*
+X019990Y011504D03*
+X019990Y011494D03*
+X015150Y011914D03*
+D140*
+X015155Y011904D03*
+X019985Y011514D03*
+X019985Y012314D03*
+D141*
+X019980Y012304D03*
+X019980Y011534D03*
+X019980Y011524D03*
+X015150Y011884D03*
+X015150Y011894D03*
+D142*
+X015155Y011874D03*
+X019975Y011554D03*
+X019975Y011544D03*
+X019975Y012294D03*
+D143*
+X019965Y011584D03*
+X019965Y011574D03*
+X015155Y011854D03*
+D144*
+X015150Y011844D03*
+X015150Y011834D03*
+X019960Y011604D03*
+X019960Y011594D03*
+D145*
+X019955Y011614D03*
+X019955Y011624D03*
+X015155Y011824D03*
+D146*
+X015155Y011774D03*
+D147*
+X015150Y011784D03*
+X015150Y011794D03*
+D148*
+X015150Y011804D03*
+X015150Y011814D03*
+D149*
+X015150Y012114D03*
+X020070Y012644D03*
+X020070Y013494D03*
+D150*
+X020080Y013514D03*
+X020080Y012624D03*
+X015150Y012144D03*
+D151*
+X012910Y012444D03*
+X012910Y012454D03*
+D152*
+X012915Y012464D03*
+X020245Y013674D03*
+D153*
+X020130Y012554D03*
+X020130Y012514D03*
+D154*
+X020140Y012524D03*
+X020140Y012544D03*
+D155*
+X020150Y012534D03*
+X020150Y013614D03*
+D156*
+X012940Y012544D03*
+X012940Y012534D03*
+D157*
+X012950Y012574D03*
+X020280Y013684D03*
+D158*
+X009595Y013684D03*
+X009595Y013674D03*
+X009595Y013664D03*
+X009595Y013654D03*
+X009595Y013644D03*
+X009595Y013634D03*
+X009595Y013624D03*
+X009595Y013614D03*
+X009595Y013604D03*
+X009595Y013594D03*
+X009595Y013584D03*
+X009595Y013574D03*
+X009595Y013564D03*
+X009595Y013554D03*
+X009595Y013544D03*
+X009595Y013534D03*
+X009595Y013524D03*
+X009595Y013514D03*
+X009595Y013504D03*
+X009595Y013494D03*
+X009595Y013484D03*
+X009595Y013474D03*
+X009595Y013464D03*
+X009595Y013454D03*
+X009595Y013444D03*
+X009595Y013434D03*
+X009595Y013424D03*
+X009595Y013414D03*
+X009595Y013404D03*
+X009595Y013394D03*
+X009595Y013384D03*
+X009595Y013374D03*
+X009595Y013364D03*
+X009595Y013354D03*
+X009595Y013344D03*
+X009595Y013334D03*
+X009595Y013324D03*
+X009595Y013314D03*
+X009595Y013304D03*
+X009595Y013294D03*
+X009595Y013284D03*
+X009595Y013274D03*
+X009595Y013264D03*
+D159*
+X020345Y013694D03*
+D160*
+X022869Y013789D02*
+X022869Y007639D01*
+M02*
diff --git a/gerber/tests/resources/example_am_exposure_modifier.gbr b/gerber/tests/resources/example_am_exposure_modifier.gbr
new file mode 100644
index 0000000..5f3f3dd
--- /dev/null
+++ b/gerber/tests/resources/example_am_exposure_modifier.gbr
@@ -0,0 +1,16 @@
+G04 Umaco example for exposure modifier and clearing area*
+%FSLAX26Y26*%
+%MOIN*%
+%AMSQUAREWITHHOLE*
+21,0.1,1,1,0,0,0*
+1,0,0.5,0,0*%
+%ADD10SQUAREWITHHOLE*%
+%ADD11C,1*%
+G01*
+%LPD*%
+D11*
+X-1000000Y-250000D02*
+X1000000Y250000D01*
+D10*
+X0Y0D03*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_coincident_hole.gbr b/gerber/tests/resources/example_coincident_hole.gbr
new file mode 100644
index 0000000..4f896ea
--- /dev/null
+++ b/gerber/tests/resources/example_coincident_hole.gbr
@@ -0,0 +1,24 @@
+G04 ex2: overlapping*
+%FSLAX24Y24*%
+%MOMM*%
+%SRX1Y1I0.000J0.000*%
+%ADD10C,1.00000*%
+G01*
+%LPD*%
+G36*
+X0Y50000D02*
+Y100000D01*
+X100000D01*
+Y0D01*
+X0D01*
+Y50000D01*
+G04 first fully coincident linear segment*
+X10000D01*
+X50000Y10000D01*
+X90000Y50000D01*
+X50000Y90000D01*
+X10000Y50000D01*
+G04 second fully coincident linear segment*
+X0D01*
+G37*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_cutin.gbr b/gerber/tests/resources/example_cutin.gbr
new file mode 100644
index 0000000..365e5e1
--- /dev/null
+++ b/gerber/tests/resources/example_cutin.gbr
@@ -0,0 +1,18 @@
+G04 Umaco uut-in example*
+%FSLAX24Y24*%
+G75*
+G36*
+X20000Y100000D02*
+G01*
+X120000D01*
+Y20000D01*
+X20000D01*
+Y60000D01*
+X50000D01*
+G03*
+X50000Y60000I30000J0D01*
+G01*
+X20000D01*
+Y100000D01*
+G37*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_cutin_multiple.gbr b/gerber/tests/resources/example_cutin_multiple.gbr
new file mode 100644
index 0000000..8e19429
--- /dev/null
+++ b/gerber/tests/resources/example_cutin_multiple.gbr
@@ -0,0 +1,28 @@
+G04 multiple cutins*
+%FSLAX24Y24*%
+%MOMM*%
+%SRX1Y1I0.000J0.000*%
+%ADD10C,1.00000*%
+%LPD*%
+G36*
+X1220000Y2570000D02*
+G01*
+Y2720000D01*
+X1310000D01*
+Y2570000D01*
+X1250000D01*
+Y2600000D01*
+X1290000D01*
+Y2640000D01*
+X1250000D01*
+Y2670000D01*
+X1290000D01*
+Y2700000D01*
+X1250000D01*
+Y2670000D01*
+Y2640000D01*
+Y2600000D01*
+Y2570000D01*
+X1220000D01*
+G37*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_flash_circle.gbr b/gerber/tests/resources/example_flash_circle.gbr
new file mode 100644
index 0000000..20b2566
--- /dev/null
+++ b/gerber/tests/resources/example_flash_circle.gbr
@@ -0,0 +1,10 @@
+G04 Flashes of circular apertures*
+%FSLAX24Y24*%
+%MOMM*%
+%ADD10C,0.5*%
+%ADD11C,0.5X0.25*%
+D10*
+X000000Y000000D03*
+D11*
+X010000D03*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_flash_obround.gbr b/gerber/tests/resources/example_flash_obround.gbr
new file mode 100644
index 0000000..5313f82
--- /dev/null
+++ b/gerber/tests/resources/example_flash_obround.gbr
@@ -0,0 +1,10 @@
+G04 Flashes of rectangular apertures*
+%FSLAX24Y24*%
+%MOMM*%
+%ADD10O,0.46X0.26*%
+%ADD11O,0.46X0.26X0.19*%
+D10*
+X000000Y000000D03*
+D11*
+X010000D03*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_flash_polygon.gbr b/gerber/tests/resources/example_flash_polygon.gbr
new file mode 100644
index 0000000..177cf9b
--- /dev/null
+++ b/gerber/tests/resources/example_flash_polygon.gbr
@@ -0,0 +1,10 @@
+G04 Flashes of rectangular apertures*
+%FSLAX24Y24*%
+%MOMM*%
+%ADD10P,.40X6*%
+%ADD11P,.40X6X0.0X0.19*%
+D10*
+X000000Y000000D03*
+D11*
+X010000D03*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_flash_rectangle.gbr b/gerber/tests/resources/example_flash_rectangle.gbr
new file mode 100644
index 0000000..8fde812
--- /dev/null
+++ b/gerber/tests/resources/example_flash_rectangle.gbr
@@ -0,0 +1,10 @@
+G04 Flashes of rectangular apertures*
+%FSLAX24Y24*%
+%MOMM*%
+%ADD10R,0.44X0.25*%
+%ADD11R,0.44X0.25X0.19*%
+D10*
+X000000Y000000D03*
+D11*
+X010000D03*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_fully_coincident.gbr b/gerber/tests/resources/example_fully_coincident.gbr
new file mode 100644
index 0000000..3764128
--- /dev/null
+++ b/gerber/tests/resources/example_fully_coincident.gbr
@@ -0,0 +1,23 @@
+G04 ex1: non overlapping*
+%FSLAX24Y24*%
+%MOMM*%
+%ADD10C,1.00000*%
+G01*
+%LPD*%
+G36*
+X0Y50000D02*
+Y100000D01*
+X100000D01*
+Y0D01*
+X0D01*
+Y50000D01*
+G04 first fully coincident linear segment*
+X-10000D01*
+X-50000Y10000D01*
+X-90000Y50000D01*
+X-50000Y90000D01*
+X-10000Y50000D01*
+G04 second fully coincident linear segment*
+X0D01*
+G37*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_guess_by_content.g0 b/gerber/tests/resources/example_guess_by_content.g0
new file mode 100644
index 0000000..5b26afe
--- /dev/null
+++ b/gerber/tests/resources/example_guess_by_content.g0
@@ -0,0 +1,166 @@
+G04 ULTIpost, Date: Nov. 01, 2017 09:40 *
+G04 Design file: C:\example_guess_by_content.g0 *
+G04 Layer name: Bottom *
+G04 Scale: 100 percent, Rotated: Yes, Reflected: No *
+G75*
+%MOIN*%
+%OFA0B0*%
+%FSLAX24Y24*%
+%IPPOS*%
+%LPD*%
+%AMOC8*
+5,1,8,0,0,1.08239X$1,22.5*
+%
+%ADD10R,0.0340X0.0880*%
+%ADD11R,0.0671X0.0237*%
+%ADD12R,0.4178X0.4332*%
+%ADD13R,0.0930X0.0500*%
+%ADD14R,0.0710X0.1655*%
+%ADD15R,0.0671X0.0592*%
+%ADD16R,0.0592X0.0671*%
+%ADD17R,0.0710X0.1615*%
+%ADD18R,0.1419X0.0828*%
+%ADD19C,0.0634*%
+%ADD20C,0.1360*%
+%ADD21R,0.0474X0.0580*%
+%ADD22C,0.0680*%
+%ADD23R,0.0552X0.0552*%
+%ADD24C,0.1340*%
+%ADD25C,0.0476*%
+D10*
+X005000Y010604D03*
+X005500Y010604D03*
+X006000Y010604D03*
+X006500Y010604D03*
+X006500Y013024D03*
+X006000Y013024D03*
+X005500Y013024D03*
+X005000Y013024D03*
+D11*
+X011423Y007128D03*
+X011423Y006872D03*
+X011423Y006616D03*
+X011423Y006360D03*
+X011423Y006104D03*
+X011423Y005848D03*
+X011423Y005592D03*
+X011423Y005336D03*
+X011423Y005080D03*
+X011423Y004825D03*
+X011423Y004569D03*
+X011423Y004313D03*
+X011423Y004057D03*
+X011423Y003801D03*
+X014277Y003801D03*
+X014277Y004057D03*
+X014277Y004313D03*
+X014277Y004569D03*
+X014277Y004825D03*
+X014277Y005080D03*
+X014277Y005336D03*
+X014277Y005592D03*
+X014277Y005848D03*
+X014277Y006104D03*
+X014277Y006360D03*
+X014277Y006616D03*
+X014277Y006872D03*
+X014277Y007128D03*
+D12*
+X009350Y010114D03*
+D13*
+X012630Y010114D03*
+X012630Y010784D03*
+X012630Y011454D03*
+X012630Y009444D03*
+X012630Y008774D03*
+D14*
+X010000Y013467D03*
+X010000Y016262D03*
+D15*
+X004150Y012988D03*
+X004150Y012240D03*
+X009900Y005688D03*
+X009900Y004940D03*
+X015000Y006240D03*
+X015000Y006988D03*
+D16*
+X014676Y008364D03*
+X015424Y008364D03*
+X017526Y004514D03*
+X018274Y004514D03*
+X010674Y004064D03*
+X009926Y004064D03*
+X004174Y009564D03*
+X003426Y009564D03*
+X005376Y014564D03*
+X006124Y014564D03*
+D17*
+X014250Y016088D03*
+X014250Y012741D03*
+D18*
+X014250Y010982D03*
+X014250Y009447D03*
+D19*
+X017200Y009464D03*
+X018200Y009964D03*
+X018200Y010964D03*
+X017200Y010464D03*
+X017200Y011464D03*
+X018200Y011964D03*
+D20*
+X020700Y012714D03*
+X020700Y008714D03*
+D21*
+X005004Y003814D03*
+X005004Y004864D03*
+X005004Y005864D03*
+X005004Y006914D03*
+X008696Y006914D03*
+X008696Y005864D03*
+X008696Y004864D03*
+X008696Y003814D03*
+D22*
+X001800Y008564D02*
+X001200Y008564D01*
+X001200Y009564D02*
+X001800Y009564D01*
+X001800Y010564D02*
+X001200Y010564D01*
+X001200Y011564D02*
+X001800Y011564D01*
+X001800Y012564D02*
+X001200Y012564D01*
+X005350Y016664D02*
+X005350Y017264D01*
+X006350Y017264D02*
+X006350Y016664D01*
+X007350Y016664D02*
+X007350Y017264D01*
+X017350Y017114D02*
+X017350Y016514D01*
+X018350Y016514D02*
+X018350Y017114D01*
+D23*
+X016613Y004514D03*
+X015787Y004514D03*
+D24*
+X020800Y005064D03*
+X020800Y016064D03*
+X002300Y016064D03*
+X002350Y005114D03*
+D25*
+X009250Y004064D03*
+X012100Y005314D03*
+X013500Y006864D03*
+X015650Y006264D03*
+X015200Y004514D03*
+X013550Y008764D03*
+X013350Y010114D03*
+X013300Y011464D03*
+X011650Y013164D03*
+X010000Y015114D03*
+X006500Y013714D03*
+X004150Y011564D03*
+X014250Y014964D03*
+X015850Y009914D03*
+M02*
diff --git a/gerber/tests/resources/example_holes_dont_clear.gbr b/gerber/tests/resources/example_holes_dont_clear.gbr
new file mode 100644
index 0000000..deeebd0
--- /dev/null
+++ b/gerber/tests/resources/example_holes_dont_clear.gbr
@@ -0,0 +1,13 @@
+G04 Demonstrates that apertures with holes do not clear the area - only the aperture hole*
+%FSLAX26Y26*%
+%MOIN*%
+%ADD10C,1X0.5*%
+%ADD11C,0.1*%
+G01*
+%LPD*%
+D11*
+X-1000000Y-250000D02*
+X1000000Y250000D01*
+D10*
+X0Y0D03*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_level_holes.gbr b/gerber/tests/resources/example_level_holes.gbr
new file mode 100644
index 0000000..1b4e189
--- /dev/null
+++ b/gerber/tests/resources/example_level_holes.gbr
@@ -0,0 +1,39 @@
+G04 This file illustrates how to use levels to create holes*
+%FSLAX25Y25*%
+%MOMM*%
+G01*
+G04 First level: big square - dark polarity*
+%LPD*%
+G36*
+X250000Y250000D02*
+X1750000D01*
+Y1750000D01*
+X250000D01*
+Y250000D01*
+G37*
+G04 Second level: big circle - clear polarity*
+%LPC*%
+G36*
+G75*
+X500000Y1000000D02*
+G03*
+X500000Y1000000I500000J0D01*
+G37*
+G04 Third level: small square - dark polarity*
+%LPD*%
+G36*
+X750000Y750000D02*
+X1250000D01*
+Y1250000D01*
+X750000D01*
+Y750000D01*
+G37*
+G04 Fourth level: small circle - clear polarity*
+%LPC*%
+G36*
+G75*
+X1150000Y1000000D02*
+G03*
+X1150000Y1000000I250000J0D01*
+G37*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_not_overlapping_contour.gbr b/gerber/tests/resources/example_not_overlapping_contour.gbr
new file mode 100644
index 0000000..e3ea631
--- /dev/null
+++ b/gerber/tests/resources/example_not_overlapping_contour.gbr
@@ -0,0 +1,20 @@
+G04 Non-overlapping contours*
+%FSLAX24Y24*%
+%MOMM*%
+%ADD10C,1.00000*%
+G01*
+%LPD*%
+G36*
+X0Y50000D02*
+Y100000D01*
+X100000D01*
+Y0D01*
+X0D01*
+Y50000D01*
+X-10000D02*
+X-50000Y10000D01*
+X-90000Y50000D01*
+X-50000Y90000D01*
+X-10000Y50000D01*
+G37*
+M02* \ No newline at end of file
diff --git a/gerber/tests/resources/example_not_overlapping_touching.gbr b/gerber/tests/resources/example_not_overlapping_touching.gbr
new file mode 100644
index 0000000..3b9b955
--- /dev/null
+++ b/gerber/tests/resources/example_not_overlapping_touching.gbr
@@ -0,0 +1,20 @@
+G04 Non-overlapping and touching*
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diff --git a/gerber/tests/resources/example_overlapping_contour.gbr b/gerber/tests/resources/example_overlapping_contour.gbr
new file mode 100644
index 0000000..74886a2
--- /dev/null
+++ b/gerber/tests/resources/example_overlapping_contour.gbr
@@ -0,0 +1,20 @@
+G04 Overlapping contours*
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diff --git a/gerber/tests/resources/example_overlapping_touching.gbr b/gerber/tests/resources/example_overlapping_touching.gbr
new file mode 100644
index 0000000..27fce15
--- /dev/null
+++ b/gerber/tests/resources/example_overlapping_touching.gbr
@@ -0,0 +1,20 @@
+G04 Overlapping and touching*
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diff --git a/gerber/tests/resources/example_simple_contour.gbr b/gerber/tests/resources/example_simple_contour.gbr
new file mode 100644
index 0000000..d851760
--- /dev/null
+++ b/gerber/tests/resources/example_simple_contour.gbr
@@ -0,0 +1,16 @@
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diff --git a/gerber/tests/resources/example_single_contour_1.gbr b/gerber/tests/resources/example_single_contour_1.gbr
new file mode 100644
index 0000000..e9f9a75
--- /dev/null
+++ b/gerber/tests/resources/example_single_contour_1.gbr
@@ -0,0 +1,15 @@
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diff --git a/gerber/tests/resources/example_single_contour_2.gbr b/gerber/tests/resources/example_single_contour_2.gbr
new file mode 100644
index 0000000..085c72c
--- /dev/null
+++ b/gerber/tests/resources/example_single_contour_2.gbr
@@ -0,0 +1,15 @@
+G04 Ucamco ex. 4.6.5: Single contour #2*
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diff --git a/gerber/tests/resources/example_single_contour_3.gbr b/gerber/tests/resources/example_single_contour_3.gbr
new file mode 100644
index 0000000..40de149
--- /dev/null
+++ b/gerber/tests/resources/example_single_contour_3.gbr
@@ -0,0 +1,15 @@
+G04 Ucamco ex. 4.6.5: Single contour #2*
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diff --git a/gerber/tests/resources/example_single_quadrant.gbr b/gerber/tests/resources/example_single_quadrant.gbr
new file mode 100644
index 0000000..c398601
--- /dev/null
+++ b/gerber/tests/resources/example_single_quadrant.gbr
@@ -0,0 +1,18 @@
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diff --git a/gerber/tests/resources/example_two_square_boxes.gbr b/gerber/tests/resources/example_two_square_boxes.gbr
new file mode 100644
index 0000000..54a8ac1
--- /dev/null
+++ b/gerber/tests/resources/example_two_square_boxes.gbr
@@ -0,0 +1,19 @@
+G04 Ucamco ex. 1: Two square boxes*
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diff --git a/gerber/tests/resources/ipc-d-356.ipc b/gerber/tests/resources/ipc-d-356.ipc
new file mode 100644
index 0000000..2ed3f49
--- /dev/null
+++ b/gerber/tests/resources/ipc-d-356.ipc
@@ -0,0 +1,115 @@
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diff --git a/gerber/tests/resources/multiline_read.ger b/gerber/tests/resources/multiline_read.ger
new file mode 100644
index 0000000..02242e4
--- /dev/null
+++ b/gerber/tests/resources/multiline_read.ger
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new file mode 100644
index 0000000..ced00ca
--- /dev/null
+++ b/gerber/tests/resources/ncdrill.DRD
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diff --git a/gerber/tests/resources/top_copper.GTL b/gerber/tests/resources/top_copper.GTL
new file mode 100644
index 0000000..01c848e
--- /dev/null
+++ b/gerber/tests/resources/top_copper.GTL
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diff --git a/gerber/tests/resources/top_mask.GTS b/gerber/tests/resources/top_mask.GTS
new file mode 100644
index 0000000..a3886f5
--- /dev/null
+++ b/gerber/tests/resources/top_mask.GTS
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diff --git a/gerber/tests/resources/top_silk.GTO b/gerber/tests/resources/top_silk.GTO
new file mode 100644
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diff --git a/gerber/tests/test_am_statements.py b/gerber/tests/test_am_statements.py
new file mode 100644
index 0000000..0d100b5
--- /dev/null
+++ b/gerber/tests/test_am_statements.py
@@ -0,0 +1,395 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+import pytest
+
+from ..am_statements import *
+from ..am_statements import inch, metric
+
+
+def test_AMPrimitive_ctor():
+ for exposure in ("on", "off", "ON", "OFF"):
+ for code in (0, 1, 2, 4, 5, 6, 7, 20, 21, 22):
+ p = AMPrimitive(code, exposure)
+ assert p.code == code
+ assert p.exposure == exposure.lower()
+
+
+def test_AMPrimitive_validation():
+ pytest.raises(TypeError, AMPrimitive, "1", "off")
+ pytest.raises(ValueError, AMPrimitive, 0, "exposed")
+ pytest.raises(ValueError, AMPrimitive, 3, "off")
+
+
+def test_AMPrimitive_conversion():
+ p = AMPrimitive(4, "on")
+ pytest.raises(NotImplementedError, p.to_inch)
+ pytest.raises(NotImplementedError, p.to_metric)
+
+
+def test_AMCommentPrimitive_ctor():
+ c = AMCommentPrimitive(0, " This is a comment *")
+ assert c.code == 0
+ assert c.comment == "This is a comment"
+
+
+def test_AMCommentPrimitive_validation():
+ pytest.raises(ValueError, AMCommentPrimitive, 1, "This is a comment")
+
+
+def test_AMCommentPrimitive_factory():
+ c = AMCommentPrimitive.from_gerber("0 Rectangle with rounded corners. *")
+ assert c.code == 0
+ assert c.comment == "Rectangle with rounded corners."
+
+
+def test_AMCommentPrimitive_dump():
+ c = AMCommentPrimitive(0, "Rectangle with rounded corners.")
+ assert c.to_gerber() == "0 Rectangle with rounded corners. *"
+
+
+def test_AMCommentPrimitive_conversion():
+ c = AMCommentPrimitive(0, "Rectangle with rounded corners.")
+ ci = c
+ cm = c
+ ci.to_inch()
+ cm.to_metric()
+ assert c == ci
+ assert c == cm
+
+
+def test_AMCommentPrimitive_string():
+ c = AMCommentPrimitive(0, "Test Comment")
+ assert str(c) == "<Aperture Macro Comment: Test Comment>"
+
+
+def test_AMCirclePrimitive_ctor():
+ test_cases = (
+ (1, "on", 0, (0, 0)),
+ (1, "off", 1, (0, 1)),
+ (1, "on", 2.5, (0, 2)),
+ (1, "off", 5.0, (3, 3)),
+ )
+ for code, exposure, diameter, position in test_cases:
+ c = AMCirclePrimitive(code, exposure, diameter, position)
+ assert c.code == code
+ assert c.exposure == exposure
+ assert c.diameter == diameter
+ assert c.position == position
+
+
+def test_AMCirclePrimitive_validation():
+ pytest.raises(ValueError, AMCirclePrimitive, 2, "on", 0, (0, 0))
+
+
+def test_AMCirclePrimitive_factory():
+ c = AMCirclePrimitive.from_gerber("1,0,5,0,0*")
+ assert c.code == 1
+ assert c.exposure == "off"
+ assert c.diameter == 5
+ assert c.position == (0, 0)
+
+
+def test_AMCirclePrimitive_dump():
+ c = AMCirclePrimitive(1, "off", 5, (0, 0))
+ assert c.to_gerber() == "1,0,5,0,0*"
+ c = AMCirclePrimitive(1, "on", 5, (0, 0))
+ assert c.to_gerber() == "1,1,5,0,0*"
+
+
+def test_AMCirclePrimitive_conversion():
+ c = AMCirclePrimitive(1, "off", 25.4, (25.4, 0))
+ c.to_inch()
+ assert c.diameter == 1
+ assert c.position == (1, 0)
+
+ c = AMCirclePrimitive(1, "off", 1, (1, 0))
+ c.to_metric()
+ assert c.diameter == 25.4
+ assert c.position == (25.4, 0)
+
+
+def test_AMVectorLinePrimitive_validation():
+ pytest.raises(
+ ValueError, AMVectorLinePrimitive, 3, "on", 0.1, (0, 0), (3.3, 5.4), 0
+ )
+
+
+def test_AMVectorLinePrimitive_factory():
+ l = AMVectorLinePrimitive.from_gerber("20,1,0.9,0,0.45,12,0.45,0*")
+ assert l.code == 20
+ assert l.exposure == "on"
+ assert l.width == 0.9
+ assert l.start == (0, 0.45)
+ assert l.end == (12, 0.45)
+ assert l.rotation == 0
+
+
+def test_AMVectorLinePrimitive_dump():
+ l = AMVectorLinePrimitive.from_gerber("20,1,0.9,0,0.45,12,0.45,0*")
+ assert l.to_gerber() == "20,1,0.9,0.0,0.45,12.0,0.45,0.0*"
+
+
+def test_AMVectorLinePrimtive_conversion():
+ l = AMVectorLinePrimitive(20, "on", 25.4, (0, 0), (25.4, 25.4), 0)
+ l.to_inch()
+ assert l.width == 1
+ assert l.start == (0, 0)
+ assert l.end == (1, 1)
+
+ l = AMVectorLinePrimitive(20, "on", 1, (0, 0), (1, 1), 0)
+ l.to_metric()
+ assert l.width == 25.4
+ assert l.start == (0, 0)
+ assert l.end == (25.4, 25.4)
+
+
+def test_AMOutlinePrimitive_validation():
+ pytest.raises(
+ ValueError,
+ AMOutlinePrimitive,
+ 7,
+ "on",
+ (0, 0),
+ [(3.3, 5.4), (4.0, 5.4), (0, 0)],
+ 0,
+ )
+ pytest.raises(
+ ValueError,
+ AMOutlinePrimitive,
+ 4,
+ "on",
+ (0, 0),
+ [(3.3, 5.4), (4.0, 5.4), (0, 1)],
+ 0,
+ )
+
+
+def test_AMOutlinePrimitive_factory():
+ o = AMOutlinePrimitive.from_gerber("4,1,3,0,0,3,3,3,0,0,0,0*")
+ assert o.code == 4
+ assert o.exposure == "on"
+ assert o.start_point == (0, 0)
+ assert o.points == [(3, 3), (3, 0), (0, 0)]
+ assert o.rotation == 0
+
+
+def test_AMOUtlinePrimitive_dump():
+ o = AMOutlinePrimitive(4, "on", (0, 0), [(3, 3), (3, 0), (0, 0)], 0)
+ # New lines don't matter for Gerber, but we insert them to make it easier to remove
+ # For test purposes we can ignore them
+ assert o.to_gerber().replace("\n", "") == "4,1,3,0,0,3,3,3,0,0,0,0*"
+
+
+def test_AMOutlinePrimitive_conversion():
+ o = AMOutlinePrimitive(4, "on", (0, 0), [(25.4, 25.4), (25.4, 0), (0, 0)], 0)
+ o.to_inch()
+ assert o.start_point == (0, 0)
+ assert o.points == ((1.0, 1.0), (1.0, 0.0), (0.0, 0.0))
+
+ o = AMOutlinePrimitive(4, "on", (0, 0), [(1, 1), (1, 0), (0, 0)], 0)
+ o.to_metric()
+ assert o.start_point == (0, 0)
+ assert o.points == ((25.4, 25.4), (25.4, 0), (0, 0))
+
+
+def test_AMPolygonPrimitive_validation():
+ pytest.raises(ValueError, AMPolygonPrimitive, 6, "on", 3, (3.3, 5.4), 3, 0)
+ pytest.raises(ValueError, AMPolygonPrimitive, 5, "on", 2, (3.3, 5.4), 3, 0)
+ pytest.raises(ValueError, AMPolygonPrimitive, 5, "on", 13, (3.3, 5.4), 3, 0)
+
+
+def test_AMPolygonPrimitive_factory():
+ p = AMPolygonPrimitive.from_gerber("5,1,3,3.3,5.4,3,0")
+ assert p.code == 5
+ assert p.exposure == "on"
+ assert p.vertices == 3
+ assert p.position == (3.3, 5.4)
+ assert p.diameter == 3
+ assert p.rotation == 0
+
+
+def test_AMPolygonPrimitive_dump():
+ p = AMPolygonPrimitive(5, "on", 3, (3.3, 5.4), 3, 0)
+ assert p.to_gerber() == "5,1,3,3.3,5.4,3,0*"
+
+
+def test_AMPolygonPrimitive_conversion():
+ p = AMPolygonPrimitive(5, "off", 3, (25.4, 0), 25.4, 0)
+ p.to_inch()
+ assert p.diameter == 1
+ assert p.position == (1, 0)
+
+ p = AMPolygonPrimitive(5, "off", 3, (1, 0), 1, 0)
+ p.to_metric()
+ assert p.diameter == 25.4
+ assert p.position == (25.4, 0)
+
+
+def test_AMMoirePrimitive_validation():
+ pytest.raises(
+ ValueError, AMMoirePrimitive, 7, (0, 0), 5.1, 0.2, 0.4, 6, 0.1, 6.1, 0
+ )
+
+
+def test_AMMoirePrimitive_factory():
+ m = AMMoirePrimitive.from_gerber("6,0,0,5,0.5,0.5,2,0.1,6,0*")
+ assert m.code == 6
+ assert m.position == (0, 0)
+ assert m.diameter == 5
+ assert m.ring_thickness == 0.5
+ assert m.gap == 0.5
+ assert m.max_rings == 2
+ assert m.crosshair_thickness == 0.1
+ assert m.crosshair_length == 6
+ assert m.rotation == 0
+
+
+def test_AMMoirePrimitive_dump():
+ m = AMMoirePrimitive.from_gerber("6,0,0,5,0.5,0.5,2,0.1,6,0*")
+ assert m.to_gerber() == "6,0,0,5.0,0.5,0.5,2,0.1,6.0,0.0*"
+
+
+def test_AMMoirePrimitive_conversion():
+ m = AMMoirePrimitive(6, (25.4, 25.4), 25.4, 25.4, 25.4, 6, 25.4, 25.4, 0)
+ m.to_inch()
+ assert m.position == (1.0, 1.0)
+ assert m.diameter == 1.0
+ assert m.ring_thickness == 1.0
+ assert m.gap == 1.0
+ assert m.crosshair_thickness == 1.0
+ assert m.crosshair_length == 1.0
+
+ m = AMMoirePrimitive(6, (1, 1), 1, 1, 1, 6, 1, 1, 0)
+ m.to_metric()
+ assert m.position == (25.4, 25.4)
+ assert m.diameter == 25.4
+ assert m.ring_thickness == 25.4
+ assert m.gap == 25.4
+ assert m.crosshair_thickness == 25.4
+ assert m.crosshair_length == 25.4
+
+
+def test_AMThermalPrimitive_validation():
+ pytest.raises(ValueError, AMThermalPrimitive, 8, (0.0, 0.0), 7, 5, 0.2, 0.0)
+ pytest.raises(TypeError, AMThermalPrimitive, 7, (0.0, "0"), 7, 5, 0.2, 0.0)
+
+
+def test_AMThermalPrimitive_factory():
+ t = AMThermalPrimitive.from_gerber("7,0,0,7,6,0.2,45*")
+ assert t.code == 7
+ assert t.position == (0, 0)
+ assert t.outer_diameter == 7
+ assert t.inner_diameter == 6
+ assert t.gap == 0.2
+ assert t.rotation == 45
+
+
+def test_AMThermalPrimitive_dump():
+ t = AMThermalPrimitive.from_gerber("7,0,0,7,6,0.2,30*")
+ assert t.to_gerber() == "7,0,0,7.0,6.0,0.2,30.0*"
+
+
+def test_AMThermalPrimitive_conversion():
+ t = AMThermalPrimitive(7, (25.4, 25.4), 25.4, 25.4, 25.4, 0.0)
+ t.to_inch()
+ assert t.position == (1.0, 1.0)
+ assert t.outer_diameter == 1.0
+ assert t.inner_diameter == 1.0
+ assert t.gap == 1.0
+
+ t = AMThermalPrimitive(7, (1, 1), 1, 1, 1, 0)
+ t.to_metric()
+ assert t.position == (25.4, 25.4)
+ assert t.outer_diameter == 25.4
+ assert t.inner_diameter == 25.4
+ assert t.gap == 25.4
+
+
+def test_AMCenterLinePrimitive_validation():
+ pytest.raises(ValueError, AMCenterLinePrimitive, 22, 1, 0.2, 0.5, (0, 0), 0)
+
+
+def test_AMCenterLinePrimtive_factory():
+ l = AMCenterLinePrimitive.from_gerber("21,1,6.8,1.2,3.4,0.6,0*")
+ assert l.code == 21
+ assert l.exposure == "on"
+ assert l.width == 6.8
+ assert l.height == 1.2
+ assert l.center == (3.4, 0.6)
+ assert l.rotation == 0
+
+
+def test_AMCenterLinePrimitive_dump():
+ l = AMCenterLinePrimitive.from_gerber("21,1,6.8,1.2,3.4,0.6,0*")
+ assert l.to_gerber() == "21,1,6.8,1.2,3.4,0.6,0.0*"
+
+
+def test_AMCenterLinePrimitive_conversion():
+ l = AMCenterLinePrimitive(21, "on", 25.4, 25.4, (25.4, 25.4), 0)
+ l.to_inch()
+ assert l.width == 1.0
+ assert l.height == 1.0
+ assert l.center == (1.0, 1.0)
+
+ l = AMCenterLinePrimitive(21, "on", 1, 1, (1, 1), 0)
+ l.to_metric()
+ assert l.width == 25.4
+ assert l.height == 25.4
+ assert l.center == (25.4, 25.4)
+
+
+def test_AMLowerLeftLinePrimitive_validation():
+ pytest.raises(ValueError, AMLowerLeftLinePrimitive, 23, 1, 0.2, 0.5, (0, 0), 0)
+
+
+def test_AMLowerLeftLinePrimtive_factory():
+ l = AMLowerLeftLinePrimitive.from_gerber("22,1,6.8,1.2,3.4,0.6,0*")
+ assert l.code == 22
+ assert l.exposure == "on"
+ assert l.width == 6.8
+ assert l.height == 1.2
+ assert l.lower_left == (3.4, 0.6)
+ assert l.rotation == 0
+
+
+def test_AMLowerLeftLinePrimitive_dump():
+ l = AMLowerLeftLinePrimitive.from_gerber("22,1,6.8,1.2,3.4,0.6,0*")
+ assert l.to_gerber() == "22,1,6.8,1.2,3.4,0.6,0.0*"
+
+
+def test_AMLowerLeftLinePrimitive_conversion():
+ l = AMLowerLeftLinePrimitive(22, "on", 25.4, 25.4, (25.4, 25.4), 0)
+ l.to_inch()
+ assert l.width == 1.0
+ assert l.height == 1.0
+ assert l.lower_left == (1.0, 1.0)
+
+ l = AMLowerLeftLinePrimitive(22, "on", 1, 1, (1, 1), 0)
+ l.to_metric()
+ assert l.width == 25.4
+ assert l.height == 25.4
+ assert l.lower_left == (25.4, 25.4)
+
+
+def test_AMUnsupportPrimitive():
+ u = AMUnsupportPrimitive.from_gerber("Test")
+ assert u.primitive == "Test"
+ u = AMUnsupportPrimitive("Test")
+ assert u.to_gerber() == "Test"
+
+
+def test_AMUnsupportPrimitive_smoketest():
+ u = AMUnsupportPrimitive.from_gerber("Test")
+ u.to_inch()
+ u.to_metric()
+
+
+def test_inch():
+ assert inch(25.4) == 1
+
+
+def test_metric():
+ assert metric(1) == 25.4
diff --git a/gerber/tests/test_cairo_backend.py b/gerber/tests/test_cairo_backend.py
new file mode 100644
index 0000000..51007a9
--- /dev/null
+++ b/gerber/tests/test_cairo_backend.py
@@ -0,0 +1,279 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Garret Fick <garret@ficksworkshop.com>
+import os
+import shutil
+import tempfile
+
+from ..render.cairo_backend import GerberCairoContext
+from ..rs274x import read
+
+
+def _DISABLED_test_render_two_boxes():
+ """Umaco exapmle of two boxes"""
+ _test_render(
+ "resources/example_two_square_boxes.gbr", "golden/example_two_square_boxes.png"
+ )
+
+
+def _DISABLED_test_render_single_quadrant():
+ """Umaco exapmle of a single quadrant arc"""
+ _test_render(
+ "resources/example_single_quadrant.gbr", "golden/example_single_quadrant.png"
+ )
+
+
+def _DISABLED_test_render_simple_contour():
+ """Umaco exapmle of a simple arrow-shaped contour"""
+ gerber = _test_render(
+ "resources/example_simple_contour.gbr", "golden/example_simple_contour.png"
+ )
+
+ # Check the resulting dimensions
+ assert ((2.0, 11.0), (1.0, 9.0)) == gerber.bounding_box
+
+
+def _DISABLED_test_render_single_contour_1():
+ """Umaco example of a single contour
+
+ The resulting image for this test is used by other tests because they must generate the same output."""
+ _test_render(
+ "resources/example_single_contour_1.gbr", "golden/example_single_contour.png"
+ )
+
+
+def _DISABLED_test_render_single_contour_2():
+ """Umaco exapmle of a single contour, alternate contour end order
+
+ The resulting image for this test is used by other tests because they must generate the same output."""
+ _test_render(
+ "resources/example_single_contour_2.gbr", "golden/example_single_contour.png"
+ )
+
+
+def _DISABLED_test_render_single_contour_3():
+ """Umaco exapmle of a single contour with extra line"""
+ _test_render(
+ "resources/example_single_contour_3.gbr", "golden/example_single_contour_3.png"
+ )
+
+
+def _DISABLED_test_render_not_overlapping_contour():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_not_overlapping_contour.gbr",
+ "golden/example_not_overlapping_contour.png",
+ )
+
+
+def _DISABLED_test_render_not_overlapping_touching():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_not_overlapping_touching.gbr",
+ "golden/example_not_overlapping_touching.png",
+ )
+
+
+def test_render_overlapping_touching():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_overlapping_touching.gbr",
+ "golden/example_overlapping_touching.png",
+ )
+
+
+def test_render_overlapping_contour():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_overlapping_contour.gbr",
+ "golden/example_overlapping_contour.png",
+ )
+
+
+def _DISABLED_test_render_level_holes():
+ """Umaco example of using multiple levels to create multiple holes"""
+
+ # TODO This is clearly rendering wrong. I'm temporarily checking this in because there are more
+ # rendering fixes in the related repository that may resolve these.
+ _test_render(
+ "resources/example_level_holes.gbr", "golden/example_overlapping_contour.png"
+ )
+
+
+def _DISABLED_test_render_cutin():
+ """Umaco example of using a cutin"""
+
+ # TODO This is clearly rendering wrong.
+ _test_render(
+ "resources/example_cutin.gbr",
+ "golden/example_cutin.png",
+ "/Users/ham/Desktop/cutin.png",
+ )
+
+
+def _DISABLED_test_render_fully_coincident():
+ """Umaco example of coincident lines rendering two contours"""
+
+ _test_render(
+ "resources/example_fully_coincident.gbr", "golden/example_fully_coincident.png"
+ )
+
+
+def _DISABLED_test_render_coincident_hole():
+ """Umaco example of coincident lines rendering a hole in the contour"""
+
+ _test_render(
+ "resources/example_coincident_hole.gbr", "golden/example_coincident_hole.png"
+ )
+
+
+def test_render_cutin_multiple():
+ """Umaco example of a region with multiple cutins"""
+
+ _test_render(
+ "resources/example_cutin_multiple.gbr", "golden/example_cutin_multiple.png"
+ )
+
+
+def _DISABLED_test_flash_circle():
+ """Umaco example a simple circular flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_circle.gbr",
+ "golden/example_flash_circle.png",
+ "/Users/ham/Desktop/flashcircle.png",
+ )
+
+
+def _DISABLED_test_flash_rectangle():
+ """Umaco example a simple rectangular flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_rectangle.gbr", "golden/example_flash_rectangle.png"
+ )
+
+
+def _DISABLED_test_flash_obround():
+ """Umaco example a simple obround flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_obround.gbr", "golden/example_flash_obround.png"
+ )
+
+
+def _DISABLED_test_flash_polygon():
+ """Umaco example a simple polygon flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_polygon.gbr", "golden/example_flash_polygon.png"
+ )
+
+
+def _DISABLED_test_holes_dont_clear():
+ """Umaco example that an aperture with a hole does not clear the area"""
+
+ _test_render(
+ "resources/example_holes_dont_clear.gbr", "golden/example_holes_dont_clear.png"
+ )
+
+
+def _DISABLED_test_render_am_exposure_modifier():
+ """Umaco example that an aperture macro with a hole does not clear the area"""
+
+ _test_render(
+ "resources/example_am_exposure_modifier.gbr",
+ "golden/example_am_exposure_modifier.png",
+ )
+
+
+def test_render_svg_simple_contour():
+ """Example of rendering to an SVG file"""
+ _test_simple_render_svg("resources/example_simple_contour.gbr")
+
+
+def _resolve_path(path):
+ return os.path.join(os.path.dirname(__file__), path)
+
+
+def _test_render(gerber_path, png_expected_path, create_output_path=None):
+ """Render the gerber file and compare to the expected PNG output.
+
+ Parameters
+ ----------
+ gerber_path : string
+ Path to Gerber file to open
+ png_expected_path : string
+ Path to the PNG file to compare to
+ create_output : string|None
+ If not None, write the generated PNG to the specified path.
+ This is primarily to help with
+ """
+
+ gerber_path = _resolve_path(gerber_path)
+ png_expected_path = _resolve_path(png_expected_path)
+ if create_output_path:
+ create_output_path = _resolve_path(create_output_path)
+
+ gerber = read(gerber_path)
+
+ # Create PNG image to the memory stream
+ ctx = GerberCairoContext()
+ gerber.render(ctx)
+
+ actual_bytes = ctx.dump(None)
+
+ # If we want to write the file bytes, do it now. This happens
+ if create_output_path:
+ with open(create_output_path, "wb") as out_file:
+ out_file.write(actual_bytes)
+ # Creating the output is dangerous - it could overwrite the expected result.
+ # So if we are creating the output, we make the test fail on purpose so you
+ # won't forget to disable this
+ assert not True, (
+ "Test created the output %s. This needs to be disabled to make sure the test behaves correctly"
+ % (create_output_path,)
+ )
+
+ # Read the expected PNG file
+
+ with open(png_expected_path, "rb") as expected_file:
+ expected_bytes = expected_file.read()
+
+ # Don't directly use assert_equal otherwise any failure pollutes the test results
+ equal = expected_bytes == actual_bytes
+ assert equal
+
+ return gerber
+
+
+def _test_simple_render_svg(gerber_path):
+ """Render the gerber file as SVG
+
+ Note: verifies only the header, not the full content.
+
+ Parameters
+ ----------
+ gerber_path : string
+ Path to Gerber file to open
+ """
+
+ gerber_path = _resolve_path(gerber_path)
+ gerber = read(gerber_path)
+
+ # Create SVG image to the memory stream
+ ctx = GerberCairoContext()
+ gerber.render(ctx)
+
+ temp_dir = tempfile.mkdtemp()
+ svg_temp_path = os.path.join(temp_dir, "output.svg")
+
+ assert not os.path.exists(svg_temp_path)
+ ctx.dump(svg_temp_path)
+ assert os.path.exists(svg_temp_path)
+
+ with open(svg_temp_path, "r") as expected_file:
+ expected_bytes = expected_file.read()
+ assert expected_bytes[:38] == '<?xml version="1.0" encoding="UTF-8"?>'
+
+ shutil.rmtree(temp_dir)
diff --git a/gerber/tests/test_cam.py b/gerber/tests/test_cam.py
new file mode 100644
index 0000000..8a71a32
--- /dev/null
+++ b/gerber/tests/test_cam.py
@@ -0,0 +1,151 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+import pytest
+
+from ..cam import CamFile, FileSettings
+
+
+def test_filesettings_defaults():
+ """ Test FileSettings default values
+ """
+ fs = FileSettings()
+ assert fs.format == (2, 5)
+ assert fs.notation == "absolute"
+ assert fs.zero_suppression == "trailing"
+ assert fs.units == "inch"
+
+
+def test_filesettings_dict():
+ """ Test FileSettings Dict
+ """
+ fs = FileSettings()
+ assert fs["format"] == (2, 5)
+ assert fs["notation"] == "absolute"
+ assert fs["zero_suppression"] == "trailing"
+ assert fs["units"] == "inch"
+
+
+def test_filesettings_assign():
+ """ Test FileSettings attribute assignment
+ """
+ fs = FileSettings()
+ fs.units = "test1"
+ fs.notation = "test2"
+ fs.zero_suppression = "test3"
+ fs.format = "test4"
+ assert fs.units == "test1"
+ assert fs.notation == "test2"
+ assert fs.zero_suppression == "test3"
+ assert fs.format == "test4"
+
+
+def test_filesettings_dict_assign():
+ """ Test FileSettings dict-style attribute assignment
+ """
+ fs = FileSettings()
+ fs["units"] = "metric"
+ fs["notation"] = "incremental"
+ fs["zero_suppression"] = "leading"
+ fs["format"] = (1, 2)
+ assert fs.units == "metric"
+ assert fs.notation == "incremental"
+ assert fs.zero_suppression == "leading"
+ assert fs.format == (1, 2)
+
+
+def test_camfile_init():
+ """ Smoke test CamFile test
+ """
+ cf = CamFile()
+
+
+def test_camfile_settings():
+ """ Test CamFile Default Settings
+ """
+ cf = CamFile()
+ assert cf.settings == FileSettings()
+
+
+def test_bounds_override_smoketest():
+ cf = CamFile()
+ cf.bounds
+
+
+def test_zeros():
+ """ Test zero/zero_suppression interaction
+ """
+ fs = FileSettings()
+ assert fs.zero_suppression == "trailing"
+ assert fs.zeros == "leading"
+
+ fs["zero_suppression"] = "leading"
+ assert fs.zero_suppression == "leading"
+ assert fs.zeros == "trailing"
+
+ fs.zero_suppression = "trailing"
+ assert fs.zero_suppression == "trailing"
+ assert fs.zeros == "leading"
+
+ fs["zeros"] = "trailing"
+ assert fs.zeros == "trailing"
+ assert fs.zero_suppression == "leading"
+
+ fs.zeros = "leading"
+ assert fs.zeros == "leading"
+ assert fs.zero_suppression == "trailing"
+
+ fs = FileSettings(zeros="leading")
+ assert fs.zeros == "leading"
+ assert fs.zero_suppression == "trailing"
+
+ fs = FileSettings(zero_suppression="leading")
+ assert fs.zeros == "trailing"
+ assert fs.zero_suppression == "leading"
+
+ fs = FileSettings(zeros="leading", zero_suppression="trailing")
+ assert fs.zeros == "leading"
+ assert fs.zero_suppression == "trailing"
+
+ fs = FileSettings(zeros="trailing", zero_suppression="leading")
+ assert fs.zeros == "trailing"
+ assert fs.zero_suppression == "leading"
+
+
+def test_filesettings_validation():
+ """ Test FileSettings constructor argument validation
+ """
+ # absolute-ish is not a valid notation
+ pytest.raises(ValueError, FileSettings, "absolute-ish", "inch", None, (2, 5), None)
+
+ # degrees kelvin isn't a valid unit for a CAM file
+ pytest.raises(
+ ValueError, FileSettings, "absolute", "degrees kelvin", None, (2, 5), None
+ )
+
+ pytest.raises(
+ ValueError, FileSettings, "absolute", "inch", "leading", (2, 5), "leading"
+ )
+
+ # Technnically this should be an error, but Eangle files often do this incorrectly so we
+ # allow it
+ # pytest.raises(ValueError, FileSettings, 'absolute',
+ # 'inch', 'following', (2, 5), None)
+
+ pytest.raises(
+ ValueError, FileSettings, "absolute", "inch", None, (2, 5), "following"
+ )
+ pytest.raises(ValueError, FileSettings, "absolute", "inch", None, (2, 5, 6), None)
+
+
+def test_key_validation():
+ fs = FileSettings()
+ pytest.raises(KeyError, fs.__getitem__, "octopus")
+ pytest.raises(KeyError, fs.__setitem__, "octopus", "do not care")
+ pytest.raises(ValueError, fs.__setitem__, "notation", "absolute-ish")
+ pytest.raises(ValueError, fs.__setitem__, "units", "degrees kelvin")
+ pytest.raises(ValueError, fs.__setitem__, "zero_suppression", "following")
+ pytest.raises(ValueError, fs.__setitem__, "zeros", "following")
+ pytest.raises(ValueError, fs.__setitem__, "format", (2, 5, 6))
diff --git a/gerber/tests/test_common.py b/gerber/tests/test_common.py
new file mode 100644
index 0000000..a6b1264
--- /dev/null
+++ b/gerber/tests/test_common.py
@@ -0,0 +1,38 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+from ..exceptions import ParseError
+from ..common import read, loads
+from ..excellon import ExcellonFile
+from ..rs274x import GerberFile
+import os
+import pytest
+
+
+NCDRILL_FILE = os.path.join(os.path.dirname(__file__), "resources/ncdrill.DRD")
+TOP_COPPER_FILE = os.path.join(os.path.dirname(__file__), "resources/top_copper.GTL")
+
+
+def test_file_type_detection():
+ """ Test file type detection
+ """
+ ncdrill = read(NCDRILL_FILE)
+ top_copper = read(TOP_COPPER_FILE)
+ assert isinstance(ncdrill, ExcellonFile)
+ assert isinstance(top_copper, GerberFile)
+
+
+def test_load_from_string():
+ with open(NCDRILL_FILE, "rU") as f:
+ ncdrill = loads(f.read())
+ with open(TOP_COPPER_FILE, "rU") as f:
+ top_copper = loads(f.read())
+ assert isinstance(ncdrill, ExcellonFile)
+ assert isinstance(top_copper, GerberFile)
+
+
+def test_file_type_validation():
+ """ Test file format validation
+ """
+ pytest.raises(ParseError, read, __file__)
diff --git a/gerber/tests/test_excellon.py b/gerber/tests/test_excellon.py
new file mode 100644
index 0000000..d6e83cc
--- /dev/null
+++ b/gerber/tests/test_excellon.py
@@ -0,0 +1,366 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+import os
+import pytest
+
+from ..cam import FileSettings
+from ..excellon import read, detect_excellon_format, ExcellonFile, ExcellonParser
+from ..excellon import DrillHit, DrillSlot
+from ..excellon_statements import ExcellonTool, RouteModeStmt
+
+
+NCDRILL_FILE = os.path.join(os.path.dirname(__file__), "resources/ncdrill.DRD")
+
+
+def test_format_detection():
+ """ Test file type detection
+ """
+ with open(NCDRILL_FILE, "rU") as f:
+ data = f.read()
+ settings = detect_excellon_format(data)
+ assert settings["format"] == (2, 4)
+ assert settings["zeros"] == "trailing"
+
+ settings = detect_excellon_format(filename=NCDRILL_FILE)
+ assert settings["format"] == (2, 4)
+ assert settings["zeros"] == "trailing"
+
+
+def test_read():
+ ncdrill = read(NCDRILL_FILE)
+ assert isinstance(ncdrill, ExcellonFile)
+
+
+def test_write():
+ ncdrill = read(NCDRILL_FILE)
+ ncdrill.write("test.ncd")
+ with open(NCDRILL_FILE, "rU") as src:
+ srclines = src.readlines()
+ with open("test.ncd", "rU") as res:
+ for idx, line in enumerate(res):
+ assert line.strip() == srclines[idx].strip()
+ os.remove("test.ncd")
+
+
+def test_read_settings():
+ ncdrill = read(NCDRILL_FILE)
+ assert ncdrill.settings["format"] == (2, 4)
+ assert ncdrill.settings["zeros"] == "trailing"
+
+
+def test_bounding_box():
+ ncdrill = read(NCDRILL_FILE)
+ xbound, ybound = ncdrill.bounding_box
+ pytest.approx(xbound, (0.1300, 2.1430))
+ pytest.approx(ybound, (0.3946, 1.7164))
+
+
+def test_report():
+ ncdrill = read(NCDRILL_FILE)
+ rprt = ncdrill.report()
+
+
+def test_conversion():
+ import copy
+
+ ncdrill = read(NCDRILL_FILE)
+ assert ncdrill.settings.units == "inch"
+ ncdrill_inch = copy.deepcopy(ncdrill)
+
+ ncdrill.to_metric()
+ assert ncdrill.settings.units == "metric"
+ for tool in iter(ncdrill_inch.tools.values()):
+ tool.to_metric()
+
+ for statement in ncdrill_inch.statements:
+ statement.to_metric()
+
+ for m_tool, i_tool in zip(
+ iter(ncdrill.tools.values()), iter(ncdrill_inch.tools.values())
+ ):
+ assert i_tool == m_tool
+
+ for m, i in zip(ncdrill.primitives, ncdrill_inch.primitives):
+
+ assert m.position == i.position, "%s not equal to %s" % (m, i)
+ assert m.diameter == i.diameter, "%s not equal to %s" % (m, i)
+
+
+def test_parser_hole_count():
+ settings = FileSettings(**detect_excellon_format(NCDRILL_FILE))
+ p = ExcellonParser(settings)
+ p.parse(NCDRILL_FILE)
+ assert p.hole_count == 36
+
+
+def test_parser_hole_sizes():
+ settings = FileSettings(**detect_excellon_format(NCDRILL_FILE))
+ p = ExcellonParser(settings)
+ p.parse(NCDRILL_FILE)
+ assert p.hole_sizes == [0.0236, 0.0354, 0.04, 0.126, 0.128]
+
+
+def test_parse_whitespace():
+ p = ExcellonParser(FileSettings())
+ assert p._parse_line(" ") == None
+
+
+def test_parse_comment():
+ p = ExcellonParser(FileSettings())
+ p._parse_line(";A comment")
+ assert p.statements[0].comment == "A comment"
+
+
+def test_parse_format_comment():
+ p = ExcellonParser(FileSettings())
+ p._parse_line("; FILE_FORMAT=9:9 ")
+ assert p.format == (9, 9)
+
+
+def test_parse_header():
+ p = ExcellonParser(FileSettings())
+ p._parse_line("M48 ")
+ assert p.state == "HEADER"
+ p._parse_line("M95 ")
+ assert p.state == "DRILL"
+
+
+def test_parse_rout():
+ p = ExcellonParser(FileSettings())
+ p._parse_line("G00X040944Y019842")
+ assert p.state == "ROUT"
+ p._parse_line("G05 ")
+ assert p.state == "DRILL"
+
+
+def test_parse_version():
+ p = ExcellonParser(FileSettings())
+ p._parse_line("VER,1 ")
+ assert p.statements[0].version == 1
+ p._parse_line("VER,2 ")
+ assert p.statements[1].version == 2
+
+
+def test_parse_format():
+ p = ExcellonParser(FileSettings())
+ p._parse_line("FMAT,1 ")
+ assert p.statements[0].format == 1
+ p._parse_line("FMAT,2 ")
+ assert p.statements[1].format == 2
+
+
+def test_parse_units():
+ settings = FileSettings(units="inch", zeros="trailing")
+ p = ExcellonParser(settings)
+ p._parse_line(";METRIC,LZ")
+ assert p.units == "inch"
+ assert p.zeros == "trailing"
+ p._parse_line("METRIC,LZ")
+ assert p.units == "metric"
+ assert p.zeros == "leading"
+
+
+def test_parse_incremental_mode():
+ settings = FileSettings(units="inch", zeros="trailing")
+ p = ExcellonParser(settings)
+ assert p.notation == "absolute"
+ p._parse_line("ICI,ON ")
+ assert p.notation == "incremental"
+ p._parse_line("ICI,OFF ")
+ assert p.notation == "absolute"
+
+
+def test_parse_absolute_mode():
+ settings = FileSettings(units="inch", zeros="trailing")
+ p = ExcellonParser(settings)
+ assert p.notation == "absolute"
+ p._parse_line("ICI,ON ")
+ assert p.notation == "incremental"
+ p._parse_line("G90 ")
+ assert p.notation == "absolute"
+
+
+def test_parse_repeat_hole():
+ p = ExcellonParser(FileSettings())
+ p.active_tool = ExcellonTool(FileSettings(), number=8)
+ p._parse_line("R03X1.5Y1.5")
+ assert p.statements[0].count == 3
+
+
+def test_parse_incremental_position():
+ p = ExcellonParser(FileSettings(notation="incremental"))
+ p._parse_line("X01Y01")
+ p._parse_line("X01Y01")
+ assert p.pos == [2.0, 2.0]
+
+
+def test_parse_unknown():
+ p = ExcellonParser(FileSettings())
+ p._parse_line("Not A Valid Statement")
+ assert p.statements[0].stmt == "Not A Valid Statement"
+
+
+def test_drill_hit_units_conversion():
+ """ Test unit conversion for drill hits
+ """
+ # Inch hit
+ settings = FileSettings(units="inch")
+ tool = ExcellonTool(settings, diameter=1.0)
+ hit = DrillHit(tool, (1.0, 1.0))
+
+ assert hit.tool.settings.units == "inch"
+ assert hit.tool.diameter == 1.0
+ assert hit.position == (1.0, 1.0)
+
+ # No Effect
+ hit.to_inch()
+
+ assert hit.tool.settings.units == "inch"
+ assert hit.tool.diameter == 1.0
+ assert hit.position == (1.0, 1.0)
+
+ # Should convert
+ hit.to_metric()
+
+ assert hit.tool.settings.units == "metric"
+ assert hit.tool.diameter == 25.4
+ assert hit.position == (25.4, 25.4)
+
+ # No Effect
+ hit.to_metric()
+
+ assert hit.tool.settings.units == "metric"
+ assert hit.tool.diameter == 25.4
+ assert hit.position == (25.4, 25.4)
+
+ # Convert back to inch
+ hit.to_inch()
+
+ assert hit.tool.settings.units == "inch"
+ assert hit.tool.diameter == 1.0
+ assert hit.position == (1.0, 1.0)
+
+
+def test_drill_hit_offset():
+ TEST_VECTORS = [
+ ((0.0, 0.0), (0.0, 1.0), (0.0, 1.0)),
+ ((0.0, 0.0), (1.0, 1.0), (1.0, 1.0)),
+ ((1.0, 1.0), (0.0, -1.0), (1.0, 0.0)),
+ ((1.0, 1.0), (-1.0, -1.0), (0.0, 0.0)),
+ ]
+ for position, offset, expected in TEST_VECTORS:
+ settings = FileSettings(units="inch")
+ tool = ExcellonTool(settings, diameter=1.0)
+ hit = DrillHit(tool, position)
+
+ assert hit.position == position
+
+ hit.offset(offset[0], offset[1])
+
+ assert hit.position == expected
+
+
+def test_drill_slot_units_conversion():
+ """ Test unit conversion for drill hits
+ """
+ # Inch hit
+ settings = FileSettings(units="inch")
+ tool = ExcellonTool(settings, diameter=1.0)
+ hit = DrillSlot(tool, (1.0, 1.0), (10.0, 10.0), DrillSlot.TYPE_ROUT)
+
+ assert hit.tool.settings.units == "inch"
+ assert hit.tool.diameter == 1.0
+ assert hit.start == (1.0, 1.0)
+ assert hit.end == (10.0, 10.0)
+
+ # No Effect
+ hit.to_inch()
+
+ assert hit.tool.settings.units == "inch"
+ assert hit.tool.diameter == 1.0
+ assert hit.start == (1.0, 1.0)
+ assert hit.end == (10.0, 10.0)
+
+ # Should convert
+ hit.to_metric()
+
+ assert hit.tool.settings.units == "metric"
+ assert hit.tool.diameter == 25.4
+ assert hit.start == (25.4, 25.4)
+ assert hit.end == (254.0, 254.0)
+
+ # No Effect
+ hit.to_metric()
+
+ assert hit.tool.settings.units == "metric"
+ assert hit.tool.diameter == 25.4
+ assert hit.start == (25.4, 25.4)
+ assert hit.end == (254.0, 254.0)
+
+ # Convert back to inch
+ hit.to_inch()
+
+ assert hit.tool.settings.units == "inch"
+ assert hit.tool.diameter == 1.0
+ assert hit.start == (1.0, 1.0)
+ assert hit.end == (10.0, 10.0)
+
+
+def test_drill_slot_offset():
+ TEST_VECTORS = [
+ ((0.0, 0.0), (1.0, 1.0), (0.0, 0.0), (0.0, 0.0), (1.0, 1.0)),
+ ((0.0, 0.0), (1.0, 1.0), (1.0, 0.0), (1.0, 0.0), (2.0, 1.0)),
+ ((0.0, 0.0), (1.0, 1.0), (1.0, 1.0), (1.0, 1.0), (2.0, 2.0)),
+ ((0.0, 0.0), (1.0, 1.0), (-1.0, 1.0), (-1.0, 1.0), (0.0, 2.0)),
+ ]
+ for start, end, offset, expected_start, expected_end in TEST_VECTORS:
+ settings = FileSettings(units="inch")
+ tool = ExcellonTool(settings, diameter=1.0)
+ slot = DrillSlot(tool, start, end, DrillSlot.TYPE_ROUT)
+
+ assert slot.start == start
+ assert slot.end == end
+
+ slot.offset(offset[0], offset[1])
+
+ assert slot.start == expected_start
+ assert slot.end == expected_end
+
+
+def test_drill_slot_bounds():
+ TEST_VECTORS = [
+ ((0.0, 0.0), (1.0, 1.0), 1.0, ((-0.5, 1.5), (-0.5, 1.5))),
+ ((0.0, 0.0), (1.0, 1.0), 0.5, ((-0.25, 1.25), (-0.25, 1.25))),
+ ]
+ for start, end, diameter, expected in TEST_VECTORS:
+ settings = FileSettings(units="inch")
+ tool = ExcellonTool(settings, diameter=diameter)
+ slot = DrillSlot(tool, start, end, DrillSlot.TYPE_ROUT)
+
+ assert slot.bounding_box == expected
+
+
+def test_handling_multi_line_g00_and_g1():
+ """Route Mode statements with coordinates on separate line are handled
+ """
+ test_data = """
+%
+M48
+M72
+T01C0.0236
+%
+T01
+G00
+X040944Y019842
+M15
+G01
+X040944Y020708
+M16
+"""
+ uut = ExcellonParser()
+ uut.parse_raw(test_data)
+ assert (
+ len([stmt for stmt in uut.statements if isinstance(stmt, RouteModeStmt)]) == 2
+ )
diff --git a/gerber/tests/test_excellon_statements.py b/gerber/tests/test_excellon_statements.py
new file mode 100644
index 0000000..41fe294
--- /dev/null
+++ b/gerber/tests/test_excellon_statements.py
@@ -0,0 +1,734 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+import pytest
+from ..excellon_statements import *
+from ..cam import FileSettings
+
+
+def test_excellon_statement_implementation():
+ stmt = ExcellonStatement()
+ pytest.raises(NotImplementedError, stmt.from_excellon, None)
+ pytest.raises(NotImplementedError, stmt.to_excellon)
+
+
+def test_excellontstmt():
+ """ Smoke test ExcellonStatement
+ """
+ stmt = ExcellonStatement()
+ stmt.to_inch()
+ stmt.to_metric()
+ stmt.offset()
+
+
+def test_excellontool_factory():
+ """ Test ExcellonTool factory methods
+ """
+ exc_line = "T8F01B02S00003H04Z05C0.12500"
+ settings = FileSettings(
+ format=(2, 5), zero_suppression="trailing", units="inch", notation="absolute"
+ )
+ tool = ExcellonTool.from_excellon(exc_line, settings)
+ assert tool.number == 8
+ assert tool.diameter == 0.125
+ assert tool.feed_rate == 1
+ assert tool.retract_rate == 2
+ assert tool.rpm == 3
+ assert tool.max_hit_count == 4
+ assert tool.depth_offset == 5
+
+ stmt = {
+ "number": 8,
+ "feed_rate": 1,
+ "retract_rate": 2,
+ "rpm": 3,
+ "diameter": 0.125,
+ "max_hit_count": 4,
+ "depth_offset": 5,
+ }
+ tool = ExcellonTool.from_dict(settings, stmt)
+ assert tool.number == 8
+ assert tool.diameter == 0.125
+ assert tool.feed_rate == 1
+ assert tool.retract_rate == 2
+ assert tool.rpm == 3
+ assert tool.max_hit_count == 4
+ assert tool.depth_offset == 5
+
+
+def test_excellontool_dump():
+ """ Test ExcellonTool to_excellon()
+ """
+ exc_lines = [
+ "T01F0S0C0.01200",
+ "T02F0S0C0.01500",
+ "T03F0S0C0.01968",
+ "T04F0S0C0.02800",
+ "T05F0S0C0.03300",
+ "T06F0S0C0.03800",
+ "T07F0S0C0.04300",
+ "T08F0S0C0.12500",
+ "T09F0S0C0.13000",
+ "T08B01F02H03S00003C0.12500Z04",
+ "T01F0S300.999C0.01200",
+ ]
+ settings = FileSettings(
+ format=(2, 5), zero_suppression="trailing", units="inch", notation="absolute"
+ )
+ for line in exc_lines:
+ tool = ExcellonTool.from_excellon(line, settings)
+ assert tool.to_excellon() == line
+
+
+def test_excellontool_order():
+ settings = FileSettings(
+ format=(2, 5), zero_suppression="trailing", units="inch", notation="absolute"
+ )
+ line = "T8F00S00C0.12500"
+ tool1 = ExcellonTool.from_excellon(line, settings)
+ line = "T8C0.12500F00S00"
+ tool2 = ExcellonTool.from_excellon(line, settings)
+ assert tool1.diameter == tool2.diameter
+ assert tool1.feed_rate == tool2.feed_rate
+ assert tool1.rpm == tool2.rpm
+
+
+def test_excellontool_conversion():
+ tool = ExcellonTool.from_dict(
+ FileSettings(units="metric"), {"number": 8, "diameter": 25.4}
+ )
+ tool.to_inch()
+ assert tool.diameter == 1.0
+ tool = ExcellonTool.from_dict(
+ FileSettings(units="inch"), {"number": 8, "diameter": 1.0}
+ )
+ tool.to_metric()
+ assert tool.diameter == 25.4
+
+ # Shouldn't change units if we're already using target units
+ tool = ExcellonTool.from_dict(
+ FileSettings(units="inch"), {"number": 8, "diameter": 25.4}
+ )
+ tool.to_inch()
+ assert tool.diameter == 25.4
+ tool = ExcellonTool.from_dict(
+ FileSettings(units="metric"), {"number": 8, "diameter": 1.0}
+ )
+ tool.to_metric()
+ assert tool.diameter == 1.0
+
+
+def test_excellontool_repr():
+ tool = ExcellonTool.from_dict(FileSettings(), {"number": 8, "diameter": 0.125})
+ assert str(tool) == "<ExcellonTool 08: 0.125in. dia.>"
+ tool = ExcellonTool.from_dict(
+ FileSettings(units="metric"), {"number": 8, "diameter": 0.125}
+ )
+ assert str(tool) == "<ExcellonTool 08: 0.125mm dia.>"
+
+
+def test_excellontool_equality():
+ t = ExcellonTool.from_dict(FileSettings(), {"number": 8, "diameter": 0.125})
+ t1 = ExcellonTool.from_dict(FileSettings(), {"number": 8, "diameter": 0.125})
+ assert t == t1
+ t1 = ExcellonTool.from_dict(
+ FileSettings(units="metric"), {"number": 8, "diameter": 0.125}
+ )
+ assert t != t1
+
+
+def test_toolselection_factory():
+ """ Test ToolSelectionStmt factory method
+ """
+ stmt = ToolSelectionStmt.from_excellon("T01")
+ assert stmt.tool == 1
+ assert stmt.compensation_index == None
+ stmt = ToolSelectionStmt.from_excellon("T0223")
+ assert stmt.tool == 2
+ assert stmt.compensation_index == 23
+ stmt = ToolSelectionStmt.from_excellon("T042")
+ assert stmt.tool == 42
+ assert stmt.compensation_index == None
+
+
+def test_toolselection_dump():
+ """ Test ToolSelectionStmt to_excellon()
+ """
+ lines = ["T01", "T0223", "T10", "T09", "T0000"]
+ for line in lines:
+ stmt = ToolSelectionStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_z_axis_infeed_rate_factory():
+ """ Test ZAxisInfeedRateStmt factory method
+ """
+ stmt = ZAxisInfeedRateStmt.from_excellon("F01")
+ assert stmt.rate == 1
+ stmt = ZAxisInfeedRateStmt.from_excellon("F2")
+ assert stmt.rate == 2
+ stmt = ZAxisInfeedRateStmt.from_excellon("F03")
+ assert stmt.rate == 3
+
+
+def test_z_axis_infeed_rate_dump():
+ """ Test ZAxisInfeedRateStmt to_excellon()
+ """
+ inputs = [("F01", "F01"), ("F2", "F02"), ("F00003", "F03")]
+ for input_rate, expected_output in inputs:
+ stmt = ZAxisInfeedRateStmt.from_excellon(input_rate)
+ assert stmt.to_excellon() == expected_output
+
+
+def test_coordinatestmt_factory():
+ """ Test CoordinateStmt factory method
+ """
+ settings = FileSettings(
+ format=(2, 5), zero_suppression="trailing", units="inch", notation="absolute"
+ )
+
+ line = "X0278207Y0065293"
+ stmt = CoordinateStmt.from_excellon(line, settings)
+ assert stmt.x == 2.78207
+ assert stmt.y == 0.65293
+
+ # line = 'X02945'
+ # stmt = CoordinateStmt.from_excellon(line)
+ # assert_equal(stmt.x, 2.945)
+
+ # line = 'Y00575'
+ # stmt = CoordinateStmt.from_excellon(line)
+ # assert_equal(stmt.y, 0.575)
+
+ settings = FileSettings(
+ format=(2, 4), zero_suppression="leading", units="inch", notation="absolute"
+ )
+
+ line = "X9660Y4639"
+ stmt = CoordinateStmt.from_excellon(line, settings)
+ assert stmt.x == 0.9660
+ assert stmt.y == 0.4639
+ assert stmt.to_excellon(settings) == "X9660Y4639"
+ assert stmt.units == "inch"
+
+ settings.units = "metric"
+ stmt = CoordinateStmt.from_excellon(line, settings)
+ assert stmt.units == "metric"
+
+
+def test_coordinatestmt_dump():
+ """ Test CoordinateStmt to_excellon()
+ """
+ lines = [
+ "X278207Y65293",
+ "X243795",
+ "Y82528",
+ "Y86028",
+ "X251295Y81528",
+ "X2525Y78",
+ "X255Y575",
+ "Y52",
+ "X2675",
+ "Y575",
+ "X2425",
+ "Y52",
+ "X23",
+ ]
+ settings = FileSettings(
+ format=(2, 4), zero_suppression="leading", units="inch", notation="absolute"
+ )
+ for line in lines:
+ stmt = CoordinateStmt.from_excellon(line, settings)
+ assert stmt.to_excellon(settings) == line
+
+
+def test_coordinatestmt_conversion():
+
+ settings = FileSettings()
+ settings.units = "metric"
+ stmt = CoordinateStmt.from_excellon("X254Y254", settings)
+
+ # No effect
+ stmt.to_metric()
+ assert stmt.x == 25.4
+ assert stmt.y == 25.4
+
+ stmt.to_inch()
+ assert stmt.units == "inch"
+ assert stmt.x == 1.0
+ assert stmt.y == 1.0
+
+ # No effect
+ stmt.to_inch()
+ assert stmt.x == 1.0
+ assert stmt.y == 1.0
+
+ settings.units = "inch"
+ stmt = CoordinateStmt.from_excellon("X01Y01", settings)
+
+ # No effect
+ stmt.to_inch()
+ assert stmt.x == 1.0
+ assert stmt.y == 1.0
+
+ stmt.to_metric()
+ assert stmt.units == "metric"
+ assert stmt.x == 25.4
+ assert stmt.y == 25.4
+
+ # No effect
+ stmt.to_metric()
+ assert stmt.x == 25.4
+ assert stmt.y == 25.4
+
+
+def test_coordinatestmt_offset():
+ stmt = CoordinateStmt.from_excellon("X01Y01", FileSettings())
+ stmt.offset()
+ assert stmt.x == 1
+ assert stmt.y == 1
+ stmt.offset(1, 0)
+ assert stmt.x == 2.0
+ assert stmt.y == 1.0
+ stmt.offset(0, 1)
+ assert stmt.x == 2.0
+ assert stmt.y == 2.0
+
+
+def test_coordinatestmt_string():
+ settings = FileSettings(
+ format=(2, 4), zero_suppression="leading", units="inch", notation="absolute"
+ )
+ stmt = CoordinateStmt.from_excellon("X9660Y4639", settings)
+ assert str(stmt) == "<Coordinate Statement: X: 0.966 Y: 0.4639 >"
+
+
+def test_repeathole_stmt_factory():
+ stmt = RepeatHoleStmt.from_excellon(
+ "R0004X015Y32", FileSettings(zeros="leading", units="inch")
+ )
+ assert stmt.count == 4
+ assert stmt.xdelta == 1.5
+ assert stmt.ydelta == 32
+ assert stmt.units == "inch"
+
+ stmt = RepeatHoleStmt.from_excellon(
+ "R0004X015Y32", FileSettings(zeros="leading", units="metric")
+ )
+ assert stmt.units == "metric"
+
+
+def test_repeatholestmt_dump():
+ line = "R4X015Y32"
+ stmt = RepeatHoleStmt.from_excellon(line, FileSettings())
+ assert stmt.to_excellon(FileSettings()) == line
+
+
+def test_repeatholestmt_conversion():
+ line = "R4X0254Y254"
+ settings = FileSettings()
+ settings.units = "metric"
+ stmt = RepeatHoleStmt.from_excellon(line, settings)
+
+ # No effect
+ stmt.to_metric()
+ assert stmt.xdelta == 2.54
+ assert stmt.ydelta == 25.4
+
+ stmt.to_inch()
+ assert stmt.units == "inch"
+ assert stmt.xdelta == 0.1
+ assert stmt.ydelta == 1.0
+
+ # no effect
+ stmt.to_inch()
+ assert stmt.xdelta == 0.1
+ assert stmt.ydelta == 1.0
+
+ line = "R4X01Y1"
+ settings.units = "inch"
+ stmt = RepeatHoleStmt.from_excellon(line, settings)
+
+ # no effect
+ stmt.to_inch()
+ assert stmt.xdelta == 1.0
+ assert stmt.ydelta == 10.0
+
+ stmt.to_metric()
+ assert stmt.units == "metric"
+ assert stmt.xdelta == 25.4
+ assert stmt.ydelta == 254.0
+
+ # No effect
+ stmt.to_metric()
+ assert stmt.xdelta == 25.4
+ assert stmt.ydelta == 254.0
+
+
+def test_repeathole_str():
+ stmt = RepeatHoleStmt.from_excellon("R4X015Y32", FileSettings())
+ assert str(stmt) == "<Repeat Hole: 4 times, offset X: 1.5 Y: 32>"
+
+
+def test_commentstmt_factory():
+ """ Test CommentStmt factory method
+ """
+ line = ";Layer_Color=9474304"
+ stmt = CommentStmt.from_excellon(line)
+ assert stmt.comment == line[1:]
+
+ line = ";FILE_FORMAT=2:5"
+ stmt = CommentStmt.from_excellon(line)
+ assert stmt.comment == line[1:]
+
+ line = ";TYPE=PLATED"
+ stmt = CommentStmt.from_excellon(line)
+ assert stmt.comment == line[1:]
+
+
+def test_commentstmt_dump():
+ """ Test CommentStmt to_excellon()
+ """
+ lines = [";Layer_Color=9474304", ";FILE_FORMAT=2:5", ";TYPE=PLATED"]
+ for line in lines:
+ stmt = CommentStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_header_begin_stmt():
+ stmt = HeaderBeginStmt()
+ assert stmt.to_excellon(None) == "M48"
+
+
+def test_header_end_stmt():
+ stmt = HeaderEndStmt()
+ assert stmt.to_excellon(None) == "M95"
+
+
+def test_rewindstop_stmt():
+ stmt = RewindStopStmt()
+ assert stmt.to_excellon(None) == "%"
+
+
+def test_z_axis_rout_position_stmt():
+ stmt = ZAxisRoutPositionStmt()
+ assert stmt.to_excellon(None) == "M15"
+
+
+def test_retract_with_clamping_stmt():
+ stmt = RetractWithClampingStmt()
+ assert stmt.to_excellon(None) == "M16"
+
+
+def test_retract_without_clamping_stmt():
+ stmt = RetractWithoutClampingStmt()
+ assert stmt.to_excellon(None) == "M17"
+
+
+def test_cutter_compensation_off_stmt():
+ stmt = CutterCompensationOffStmt()
+ assert stmt.to_excellon(None) == "G40"
+
+
+def test_cutter_compensation_left_stmt():
+ stmt = CutterCompensationLeftStmt()
+ assert stmt.to_excellon(None) == "G41"
+
+
+def test_cutter_compensation_right_stmt():
+ stmt = CutterCompensationRightStmt()
+ assert stmt.to_excellon(None) == "G42"
+
+
+def test_endofprogramstmt_factory():
+ settings = FileSettings(units="inch")
+ stmt = EndOfProgramStmt.from_excellon("M30X01Y02", settings)
+ assert stmt.x == 1.0
+ assert stmt.y == 2.0
+ assert stmt.units == "inch"
+ settings.units = "metric"
+ stmt = EndOfProgramStmt.from_excellon("M30X01", settings)
+ assert stmt.x == 1.0
+ assert stmt.y == None
+ assert stmt.units == "metric"
+ stmt = EndOfProgramStmt.from_excellon("M30Y02", FileSettings())
+ assert stmt.x == None
+ assert stmt.y == 2.0
+
+
+def test_endofprogramStmt_dump():
+ lines = ["M30X01Y02"]
+ for line in lines:
+ stmt = EndOfProgramStmt.from_excellon(line, FileSettings())
+ assert stmt.to_excellon(FileSettings()) == line
+
+
+def test_endofprogramstmt_conversion():
+ settings = FileSettings()
+ settings.units = "metric"
+ stmt = EndOfProgramStmt.from_excellon("M30X0254Y254", settings)
+ # No effect
+ stmt.to_metric()
+ assert stmt.x == 2.54
+ assert stmt.y == 25.4
+
+ stmt.to_inch()
+ assert stmt.units == "inch"
+ assert stmt.x == 0.1
+ assert stmt.y == 1.0
+
+ # No effect
+ stmt.to_inch()
+ assert stmt.x == 0.1
+ assert stmt.y == 1.0
+
+ settings.units = "inch"
+ stmt = EndOfProgramStmt.from_excellon("M30X01Y1", settings)
+
+ # No effect
+ stmt.to_inch()
+ assert stmt.x == 1.0
+ assert stmt.y == 10.0
+
+ stmt.to_metric()
+ assert stmt.units == "metric"
+ assert stmt.x == 25.4
+ assert stmt.y == 254.0
+
+ # No effect
+ stmt.to_metric()
+ assert stmt.x == 25.4
+ assert stmt.y == 254.0
+
+
+def test_endofprogramstmt_offset():
+ stmt = EndOfProgramStmt(1, 1)
+ stmt.offset()
+ assert stmt.x == 1
+ assert stmt.y == 1
+ stmt.offset(1, 0)
+ assert stmt.x == 2.0
+ assert stmt.y == 1.0
+ stmt.offset(0, 1)
+ assert stmt.x == 2.0
+ assert stmt.y == 2.0
+
+
+def test_unitstmt_factory():
+ """ Test UnitStmt factory method
+ """
+ line = "INCH,LZ"
+ stmt = UnitStmt.from_excellon(line)
+ assert stmt.units == "inch"
+ assert stmt.zeros == "leading"
+
+ line = "INCH,TZ"
+ stmt = UnitStmt.from_excellon(line)
+ assert stmt.units == "inch"
+ assert stmt.zeros == "trailing"
+
+ line = "METRIC,LZ"
+ stmt = UnitStmt.from_excellon(line)
+ assert stmt.units == "metric"
+ assert stmt.zeros == "leading"
+
+ line = "METRIC,TZ"
+ stmt = UnitStmt.from_excellon(line)
+ assert stmt.units == "metric"
+ assert stmt.zeros == "trailing"
+
+
+def test_unitstmt_dump():
+ """ Test UnitStmt to_excellon()
+ """
+ lines = ["INCH,LZ", "INCH,TZ", "METRIC,LZ", "METRIC,TZ"]
+ for line in lines:
+ stmt = UnitStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_unitstmt_conversion():
+ stmt = UnitStmt.from_excellon("METRIC,TZ")
+ stmt.to_inch()
+ assert stmt.units == "inch"
+
+ stmt = UnitStmt.from_excellon("INCH,TZ")
+ stmt.to_metric()
+ assert stmt.units == "metric"
+
+
+def test_incrementalmode_factory():
+ """ Test IncrementalModeStmt factory method
+ """
+ line = "ICI,ON"
+ stmt = IncrementalModeStmt.from_excellon(line)
+ assert stmt.mode == "on"
+
+ line = "ICI,OFF"
+ stmt = IncrementalModeStmt.from_excellon(line)
+ assert stmt.mode == "off"
+
+
+def test_incrementalmode_dump():
+ """ Test IncrementalModeStmt to_excellon()
+ """
+ lines = ["ICI,ON", "ICI,OFF"]
+ for line in lines:
+ stmt = IncrementalModeStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_incrementalmode_validation():
+ """ Test IncrementalModeStmt input validation
+ """
+ pytest.raises(ValueError, IncrementalModeStmt, "OFF-ISH")
+
+
+def test_versionstmt_factory():
+ """ Test VersionStmt factory method
+ """
+ line = "VER,1"
+ stmt = VersionStmt.from_excellon(line)
+ assert stmt.version == 1
+
+ line = "VER,2"
+ stmt = VersionStmt.from_excellon(line)
+ assert stmt.version == 2
+
+
+def test_versionstmt_dump():
+ """ Test VersionStmt to_excellon()
+ """
+ lines = ["VER,1", "VER,2"]
+ for line in lines:
+ stmt = VersionStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_versionstmt_validation():
+ """ Test VersionStmt input validation
+ """
+ pytest.raises(ValueError, VersionStmt, 3)
+
+
+def test_formatstmt_factory():
+ """ Test FormatStmt factory method
+ """
+ line = "FMAT,1"
+ stmt = FormatStmt.from_excellon(line)
+ assert stmt.format == 1
+
+ line = "FMAT,2"
+ stmt = FormatStmt.from_excellon(line)
+ assert stmt.format == 2
+
+
+def test_formatstmt_dump():
+ """ Test FormatStmt to_excellon()
+ """
+ lines = ["FMAT,1", "FMAT,2"]
+ for line in lines:
+ stmt = FormatStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_formatstmt_validation():
+ """ Test FormatStmt input validation
+ """
+ pytest.raises(ValueError, FormatStmt, 3)
+
+
+def test_linktoolstmt_factory():
+ """ Test LinkToolStmt factory method
+ """
+ line = "1/2/3/4"
+ stmt = LinkToolStmt.from_excellon(line)
+ assert stmt.linked_tools == [1, 2, 3, 4]
+
+ line = "01/02/03/04"
+ stmt = LinkToolStmt.from_excellon(line)
+ assert stmt.linked_tools == [1, 2, 3, 4]
+
+
+def test_linktoolstmt_dump():
+ """ Test LinkToolStmt to_excellon()
+ """
+ lines = ["1/2/3/4", "5/6/7"]
+ for line in lines:
+ stmt = LinkToolStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_measmodestmt_factory():
+ """ Test MeasuringModeStmt factory method
+ """
+ line = "M72"
+ stmt = MeasuringModeStmt.from_excellon(line)
+ assert stmt.units == "inch"
+
+ line = "M71"
+ stmt = MeasuringModeStmt.from_excellon(line)
+ assert stmt.units == "metric"
+
+
+def test_measmodestmt_dump():
+ """ Test MeasuringModeStmt to_excellon()
+ """
+ lines = ["M71", "M72"]
+ for line in lines:
+ stmt = MeasuringModeStmt.from_excellon(line)
+ assert stmt.to_excellon() == line
+
+
+def test_measmodestmt_validation():
+ """ Test MeasuringModeStmt input validation
+ """
+ pytest.raises(ValueError, MeasuringModeStmt.from_excellon, "M70")
+ pytest.raises(ValueError, MeasuringModeStmt, "millimeters")
+
+
+def test_measmodestmt_conversion():
+ line = "M72"
+ stmt = MeasuringModeStmt.from_excellon(line)
+ assert stmt.units == "inch"
+ stmt.to_metric()
+ assert stmt.units == "metric"
+
+ line = "M71"
+ stmt = MeasuringModeStmt.from_excellon(line)
+ assert stmt.units == "metric"
+ stmt.to_inch()
+ assert stmt.units == "inch"
+
+
+def test_routemode_stmt():
+ stmt = RouteModeStmt()
+ assert stmt.to_excellon(FileSettings()) == "G00"
+
+
+def test_linearmode_stmt():
+ stmt = LinearModeStmt()
+ assert stmt.to_excellon(FileSettings()) == "G01"
+
+
+def test_drillmode_stmt():
+ stmt = DrillModeStmt()
+ assert stmt.to_excellon(FileSettings()) == "G05"
+
+
+def test_absolutemode_stmt():
+ stmt = AbsoluteModeStmt()
+ assert stmt.to_excellon(FileSettings()) == "G90"
+
+
+def test_unknownstmt():
+ stmt = UnknownStmt("TEST")
+ assert stmt.stmt == "TEST"
+ assert str(stmt) == "<Unknown Statement: TEST>"
+
+
+def test_unknownstmt_dump():
+ stmt = UnknownStmt("TEST")
+ assert stmt.to_excellon(FileSettings()) == "TEST"
diff --git a/gerber/tests/test_gerber_statements.py b/gerber/tests/test_gerber_statements.py
new file mode 100644
index 0000000..140cbd1
--- /dev/null
+++ b/gerber/tests/test_gerber_statements.py
@@ -0,0 +1,959 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+import pytest
+from ..gerber_statements import *
+from ..cam import FileSettings
+
+
+def test_Statement_smoketest():
+ stmt = Statement("Test")
+ assert stmt.type == "Test"
+ stmt.to_metric()
+ assert "units=metric" in str(stmt)
+ stmt.to_inch()
+ assert "units=inch" in str(stmt)
+ stmt.to_metric()
+ stmt.offset(1, 1)
+ assert "type=Test" in str(stmt)
+
+
+def test_FSParamStmt_factory():
+ """ Test FSParamStruct factory
+ """
+ stmt = {"param": "FS", "zero": "L", "notation": "A", "x": "27"}
+ fs = FSParamStmt.from_dict(stmt)
+ assert fs.param == "FS"
+ assert fs.zero_suppression == "leading"
+ assert fs.notation == "absolute"
+ assert fs.format == (2, 7)
+
+ stmt = {"param": "FS", "zero": "T", "notation": "I", "x": "27"}
+ fs = FSParamStmt.from_dict(stmt)
+ assert fs.param == "FS"
+ assert fs.zero_suppression == "trailing"
+ assert fs.notation == "incremental"
+ assert fs.format == (2, 7)
+
+
+def test_FSParamStmt():
+ """ Test FSParamStmt initialization
+ """
+ param = "FS"
+ zeros = "trailing"
+ notation = "absolute"
+ fmt = (2, 5)
+ stmt = FSParamStmt(param, zeros, notation, fmt)
+ assert stmt.param == param
+ assert stmt.zero_suppression == zeros
+ assert stmt.notation == notation
+ assert stmt.format == fmt
+
+
+def test_FSParamStmt_dump():
+ """ Test FSParamStmt to_gerber()
+ """
+ stmt = {"param": "FS", "zero": "L", "notation": "A", "x": "27"}
+ fs = FSParamStmt.from_dict(stmt)
+ assert fs.to_gerber() == "%FSLAX27Y27*%"
+
+ stmt = {"param": "FS", "zero": "T", "notation": "I", "x": "25"}
+ fs = FSParamStmt.from_dict(stmt)
+ assert fs.to_gerber() == "%FSTIX25Y25*%"
+
+ settings = FileSettings(zero_suppression="leading", notation="absolute")
+ assert fs.to_gerber(settings) == "%FSLAX25Y25*%"
+
+
+def test_FSParamStmt_string():
+ """ Test FSParamStmt.__str__()
+ """
+ stmt = {"param": "FS", "zero": "L", "notation": "A", "x": "27"}
+ fs = FSParamStmt.from_dict(stmt)
+ assert str(fs) == "<Format Spec: 2:7 leading zero suppression absolute notation>"
+
+ stmt = {"param": "FS", "zero": "T", "notation": "I", "x": "25"}
+ fs = FSParamStmt.from_dict(stmt)
+ assert (
+ str(fs) == "<Format Spec: 2:5 trailing zero suppression incremental notation>"
+ )
+
+
+def test_MOParamStmt_factory():
+ """ Test MOParamStruct factory
+ """
+ stmts = [{"param": "MO", "mo": "IN"}, {"param": "MO", "mo": "in"}]
+ for stmt in stmts:
+ mo = MOParamStmt.from_dict(stmt)
+ assert mo.param == "MO"
+ assert mo.mode == "inch"
+
+ stmts = [{"param": "MO", "mo": "MM"}, {"param": "MO", "mo": "mm"}]
+ for stmt in stmts:
+ mo = MOParamStmt.from_dict(stmt)
+ assert mo.param == "MO"
+ assert mo.mode == "metric"
+
+ stmt = {"param": "MO"}
+ mo = MOParamStmt.from_dict(stmt)
+ assert mo.mode == None
+ stmt = {"param": "MO", "mo": "degrees kelvin"}
+ pytest.raises(ValueError, MOParamStmt.from_dict, stmt)
+
+
+def test_MOParamStmt():
+ """ Test MOParamStmt initialization
+ """
+ param = "MO"
+ mode = "inch"
+ stmt = MOParamStmt(param, mode)
+ assert stmt.param == param
+
+ for mode in ["inch", "metric"]:
+ stmt = MOParamStmt(param, mode)
+ assert stmt.mode == mode
+
+
+def test_MOParamStmt_dump():
+ """ Test MOParamStmt to_gerber()
+ """
+ stmt = {"param": "MO", "mo": "IN"}
+ mo = MOParamStmt.from_dict(stmt)
+ assert mo.to_gerber() == "%MOIN*%"
+
+ stmt = {"param": "MO", "mo": "MM"}
+ mo = MOParamStmt.from_dict(stmt)
+ assert mo.to_gerber() == "%MOMM*%"
+
+
+def test_MOParamStmt_conversion():
+ stmt = {"param": "MO", "mo": "MM"}
+ mo = MOParamStmt.from_dict(stmt)
+ mo.to_inch()
+ assert mo.mode == "inch"
+
+ stmt = {"param": "MO", "mo": "IN"}
+ mo = MOParamStmt.from_dict(stmt)
+ mo.to_metric()
+ assert mo.mode == "metric"
+
+
+def test_MOParamStmt_string():
+ """ Test MOParamStmt.__str__()
+ """
+ stmt = {"param": "MO", "mo": "IN"}
+ mo = MOParamStmt.from_dict(stmt)
+ assert str(mo) == "<Mode: inches>"
+
+ stmt = {"param": "MO", "mo": "MM"}
+ mo = MOParamStmt.from_dict(stmt)
+ assert str(mo) == "<Mode: millimeters>"
+
+
+def test_IPParamStmt_factory():
+ """ Test IPParamStruct factory
+ """
+ stmt = {"param": "IP", "ip": "POS"}
+ ip = IPParamStmt.from_dict(stmt)
+ assert ip.ip == "positive"
+
+ stmt = {"param": "IP", "ip": "NEG"}
+ ip = IPParamStmt.from_dict(stmt)
+ assert ip.ip == "negative"
+
+
+def test_IPParamStmt():
+ """ Test IPParamStmt initialization
+ """
+ param = "IP"
+ for ip in ["positive", "negative"]:
+ stmt = IPParamStmt(param, ip)
+ assert stmt.param == param
+ assert stmt.ip == ip
+
+
+def test_IPParamStmt_dump():
+ """ Test IPParamStmt to_gerber()
+ """
+ stmt = {"param": "IP", "ip": "POS"}
+ ip = IPParamStmt.from_dict(stmt)
+ assert ip.to_gerber() == "%IPPOS*%"
+
+ stmt = {"param": "IP", "ip": "NEG"}
+ ip = IPParamStmt.from_dict(stmt)
+ assert ip.to_gerber() == "%IPNEG*%"
+
+
+def test_IPParamStmt_string():
+ stmt = {"param": "IP", "ip": "POS"}
+ ip = IPParamStmt.from_dict(stmt)
+ assert str(ip) == "<Image Polarity: positive>"
+
+ stmt = {"param": "IP", "ip": "NEG"}
+ ip = IPParamStmt.from_dict(stmt)
+ assert str(ip) == "<Image Polarity: negative>"
+
+
+def test_IRParamStmt_factory():
+ stmt = {"param": "IR", "angle": "45"}
+ ir = IRParamStmt.from_dict(stmt)
+ assert ir.param == "IR"
+ assert ir.angle == 45
+
+
+def test_IRParamStmt_dump():
+ stmt = {"param": "IR", "angle": "45"}
+ ir = IRParamStmt.from_dict(stmt)
+ assert ir.to_gerber() == "%IR45*%"
+
+
+def test_IRParamStmt_string():
+ stmt = {"param": "IR", "angle": "45"}
+ ir = IRParamStmt.from_dict(stmt)
+ assert str(ir) == "<Image Angle: 45>"
+
+
+def test_OFParamStmt_factory():
+ """ Test OFParamStmt factory
+ """
+ stmt = {"param": "OF", "a": "0.1234567", "b": "0.1234567"}
+ of = OFParamStmt.from_dict(stmt)
+ assert of.a == 0.1234567
+ assert of.b == 0.1234567
+
+
+def test_OFParamStmt():
+ """ Test IPParamStmt initialization
+ """
+ param = "OF"
+ for val in [0.0, -3.4567]:
+ stmt = OFParamStmt(param, val, val)
+ assert stmt.param == param
+ assert stmt.a == val
+ assert stmt.b == val
+
+
+def test_OFParamStmt_dump():
+ """ Test OFParamStmt to_gerber()
+ """
+ stmt = {"param": "OF", "a": "0.123456", "b": "0.123456"}
+ of = OFParamStmt.from_dict(stmt)
+ assert of.to_gerber() == "%OFA0.12345B0.12345*%"
+
+
+def test_OFParamStmt_conversion():
+ stmt = {"param": "OF", "a": "2.54", "b": "25.4"}
+ of = OFParamStmt.from_dict(stmt)
+ of.units = "metric"
+
+ # No effect
+ of.to_metric()
+ assert of.a == 2.54
+ assert of.b == 25.4
+
+ of.to_inch()
+ assert of.units == "inch"
+ assert of.a == 0.1
+ assert of.b == 1.0
+
+ # No effect
+ of.to_inch()
+ assert of.a == 0.1
+ assert of.b == 1.0
+
+ stmt = {"param": "OF", "a": "0.1", "b": "1.0"}
+ of = OFParamStmt.from_dict(stmt)
+ of.units = "inch"
+
+ # No effect
+ of.to_inch()
+ assert of.a == 0.1
+ assert of.b == 1.0
+
+ of.to_metric()
+ assert of.units == "metric"
+ assert of.a == 2.54
+ assert of.b == 25.4
+
+ # No effect
+ of.to_metric()
+ assert of.a == 2.54
+ assert of.b == 25.4
+
+
+def test_OFParamStmt_offset():
+ s = OFParamStmt("OF", 0, 0)
+ s.offset(1, 0)
+ assert s.a == 1.0
+ assert s.b == 0.0
+ s.offset(0, 1)
+ assert s.a == 1.0
+ assert s.b == 1.0
+
+
+def test_OFParamStmt_string():
+ """ Test OFParamStmt __str__
+ """
+ stmt = {"param": "OF", "a": "0.123456", "b": "0.123456"}
+ of = OFParamStmt.from_dict(stmt)
+ assert str(of) == "<Offset: X: 0.123456 Y: 0.123456 >"
+
+
+def test_SFParamStmt_factory():
+ stmt = {"param": "SF", "a": "1.4", "b": "0.9"}
+ sf = SFParamStmt.from_dict(stmt)
+ assert sf.param == "SF"
+ assert sf.a == 1.4
+ assert sf.b == 0.9
+
+
+def test_SFParamStmt_dump():
+ stmt = {"param": "SF", "a": "1.4", "b": "0.9"}
+ sf = SFParamStmt.from_dict(stmt)
+ assert sf.to_gerber() == "%SFA1.4B0.9*%"
+
+
+def test_SFParamStmt_conversion():
+ stmt = {"param": "OF", "a": "2.54", "b": "25.4"}
+ of = SFParamStmt.from_dict(stmt)
+ of.units = "metric"
+ of.to_metric()
+
+ # No effect
+ assert of.a == 2.54
+ assert of.b == 25.4
+
+ of.to_inch()
+ assert of.units == "inch"
+ assert of.a == 0.1
+ assert of.b == 1.0
+
+ # No effect
+ of.to_inch()
+ assert of.a == 0.1
+ assert of.b == 1.0
+
+ stmt = {"param": "OF", "a": "0.1", "b": "1.0"}
+ of = SFParamStmt.from_dict(stmt)
+ of.units = "inch"
+
+ # No effect
+ of.to_inch()
+ assert of.a == 0.1
+ assert of.b == 1.0
+
+ of.to_metric()
+ assert of.units == "metric"
+ assert of.a == 2.54
+ assert of.b == 25.4
+
+ # No effect
+ of.to_metric()
+ assert of.a == 2.54
+ assert of.b == 25.4
+
+
+def test_SFParamStmt_offset():
+ s = SFParamStmt("OF", 0, 0)
+ s.offset(1, 0)
+ assert s.a == 1.0
+ assert s.b == 0.0
+ s.offset(0, 1)
+ assert s.a == 1.0
+ assert s.b == 1.0
+
+
+def test_SFParamStmt_string():
+ stmt = {"param": "SF", "a": "1.4", "b": "0.9"}
+ sf = SFParamStmt.from_dict(stmt)
+ assert str(sf) == "<Scale Factor: X: 1.4 Y: 0.9>"
+
+
+def test_LPParamStmt_factory():
+ """ Test LPParamStmt factory
+ """
+ stmt = {"param": "LP", "lp": "C"}
+ lp = LPParamStmt.from_dict(stmt)
+ assert lp.lp == "clear"
+
+ stmt = {"param": "LP", "lp": "D"}
+ lp = LPParamStmt.from_dict(stmt)
+ assert lp.lp == "dark"
+
+
+def test_LPParamStmt_dump():
+ """ Test LPParamStmt to_gerber()
+ """
+ stmt = {"param": "LP", "lp": "C"}
+ lp = LPParamStmt.from_dict(stmt)
+ assert lp.to_gerber() == "%LPC*%"
+
+ stmt = {"param": "LP", "lp": "D"}
+ lp = LPParamStmt.from_dict(stmt)
+ assert lp.to_gerber() == "%LPD*%"
+
+
+def test_LPParamStmt_string():
+ """ Test LPParamStmt.__str__()
+ """
+ stmt = {"param": "LP", "lp": "D"}
+ lp = LPParamStmt.from_dict(stmt)
+ assert str(lp) == "<Level Polarity: dark>"
+
+ stmt = {"param": "LP", "lp": "C"}
+ lp = LPParamStmt.from_dict(stmt)
+ assert str(lp) == "<Level Polarity: clear>"
+
+
+def test_AMParamStmt_factory():
+ name = "DONUTVAR"
+ macro = """0 Test Macro. *
+1,1,1.5,0,0*
+20,1,0.9,0,0.45,12,0.45,0*
+21,1,6.8,1.2,3.4,0.6,0*
+22,1,6.8,1.2,0,0,0*
+4,1,4,0.1,0.1,0.5,0.1,0.5,0.5,0.1,0.5,0.1,0.1,0*
+5,1,8,0,0,8,0*
+6,0,0,5,0.5,0.5,2,0.1,6,0*
+7,0,0,7,6,0.2,0*
+8,THIS IS AN UNSUPPORTED PRIMITIVE*
+"""
+ s = AMParamStmt.from_dict({"param": "AM", "name": name, "macro": macro})
+ s.build()
+ assert len(s.primitives) == 10
+ assert isinstance(s.primitives[0], AMCommentPrimitive)
+ assert isinstance(s.primitives[1], AMCirclePrimitive)
+ assert isinstance(s.primitives[2], AMVectorLinePrimitive)
+ assert isinstance(s.primitives[3], AMCenterLinePrimitive)
+ assert isinstance(s.primitives[4], AMLowerLeftLinePrimitive)
+ assert isinstance(s.primitives[5], AMOutlinePrimitive)
+ assert isinstance(s.primitives[6], AMPolygonPrimitive)
+ assert isinstance(s.primitives[7], AMMoirePrimitive)
+ assert isinstance(s.primitives[8], AMThermalPrimitive)
+ assert isinstance(s.primitives[9], AMUnsupportPrimitive)
+
+
+def testAMParamStmt_conversion():
+ name = "POLYGON"
+ macro = "5,1,8,25.4,25.4,25.4,0*"
+ s = AMParamStmt.from_dict({"param": "AM", "name": name, "macro": macro})
+
+ s.build()
+ s.units = "metric"
+
+ # No effect
+ s.to_metric()
+ assert s.primitives[0].position == (25.4, 25.4)
+ assert s.primitives[0].diameter == 25.4
+
+ s.to_inch()
+ assert s.units == "inch"
+ assert s.primitives[0].position == (1.0, 1.0)
+ assert s.primitives[0].diameter == 1.0
+
+ # No effect
+ s.to_inch()
+ assert s.primitives[0].position == (1.0, 1.0)
+ assert s.primitives[0].diameter == 1.0
+
+ macro = "5,1,8,1,1,1,0*"
+ s = AMParamStmt.from_dict({"param": "AM", "name": name, "macro": macro})
+ s.build()
+ s.units = "inch"
+
+ # No effect
+ s.to_inch()
+ assert s.primitives[0].position == (1.0, 1.0)
+ assert s.primitives[0].diameter == 1.0
+
+ s.to_metric()
+ assert s.units == "metric"
+ assert s.primitives[0].position == (25.4, 25.4)
+ assert s.primitives[0].diameter == 25.4
+
+ # No effect
+ s.to_metric()
+ assert s.primitives[0].position == (25.4, 25.4)
+ assert s.primitives[0].diameter == 25.4
+
+
+def test_AMParamStmt_dump():
+ name = "POLYGON"
+ macro = "5,1,8,25.4,25.4,25.4,0.0"
+ s = AMParamStmt.from_dict({"param": "AM", "name": name, "macro": macro})
+ s.build()
+ assert s.to_gerber() == "%AMPOLYGON*5,1,8,25.4,25.4,25.4,0.0*%"
+
+ # TODO - Store Equations and update on unit change...
+ s = AMParamStmt.from_dict(
+ {"param": "AM", "name": "OC8", "macro": "5,1,8,0,0,1.08239X$1,22.5"}
+ )
+ s.build()
+ # assert_equal(s.to_gerber(), '%AMOC8*5,1,8,0,0,1.08239X$1,22.5*%')
+ assert s.to_gerber() == "%AMOC8*5,1,8,0,0,0,22.5*%"
+
+
+def test_AMParamStmt_string():
+ name = "POLYGON"
+ macro = "5,1,8,25.4,25.4,25.4,0*"
+ s = AMParamStmt.from_dict({"param": "AM", "name": name, "macro": macro})
+ s.build()
+ assert str(s) == "<Aperture Macro POLYGON: 5,1,8,25.4,25.4,25.4,0*>"
+
+
+def test_ASParamStmt_factory():
+ stmt = {"param": "AS", "mode": "AXBY"}
+ s = ASParamStmt.from_dict(stmt)
+ assert s.param == "AS"
+ assert s.mode == "AXBY"
+
+
+def test_ASParamStmt_dump():
+ stmt = {"param": "AS", "mode": "AXBY"}
+ s = ASParamStmt.from_dict(stmt)
+ assert s.to_gerber() == "%ASAXBY*%"
+
+
+def test_ASParamStmt_string():
+ stmt = {"param": "AS", "mode": "AXBY"}
+ s = ASParamStmt.from_dict(stmt)
+ assert str(s) == "<Axis Select: AXBY>"
+
+
+def test_INParamStmt_factory():
+ """ Test INParamStmt factory
+ """
+ stmt = {"param": "IN", "name": "test"}
+ inp = INParamStmt.from_dict(stmt)
+ assert inp.name == "test"
+
+
+def test_INParamStmt_dump():
+ """ Test INParamStmt to_gerber()
+ """
+ stmt = {"param": "IN", "name": "test"}
+ inp = INParamStmt.from_dict(stmt)
+ assert inp.to_gerber() == "%INtest*%"
+
+
+def test_INParamStmt_string():
+ stmt = {"param": "IN", "name": "test"}
+ inp = INParamStmt.from_dict(stmt)
+ assert str(inp) == "<Image Name: test>"
+
+
+def test_LNParamStmt_factory():
+ """ Test LNParamStmt factory
+ """
+ stmt = {"param": "LN", "name": "test"}
+ lnp = LNParamStmt.from_dict(stmt)
+ assert lnp.name == "test"
+
+
+def test_LNParamStmt_dump():
+ """ Test LNParamStmt to_gerber()
+ """
+ stmt = {"param": "LN", "name": "test"}
+ lnp = LNParamStmt.from_dict(stmt)
+ assert lnp.to_gerber() == "%LNtest*%"
+
+
+def test_LNParamStmt_string():
+ stmt = {"param": "LN", "name": "test"}
+ lnp = LNParamStmt.from_dict(stmt)
+ assert str(lnp) == "<Level Name: test>"
+
+
+def test_comment_stmt():
+ """ Test comment statement
+ """
+ stmt = CommentStmt("A comment")
+ assert stmt.type == "COMMENT"
+ assert stmt.comment == "A comment"
+
+
+def test_comment_stmt_dump():
+ """ Test CommentStmt to_gerber()
+ """
+ stmt = CommentStmt("A comment")
+ assert stmt.to_gerber() == "G04A comment*"
+
+
+def test_comment_stmt_string():
+ stmt = CommentStmt("A comment")
+ assert str(stmt) == "<Comment: A comment>"
+
+
+def test_eofstmt():
+ """ Test EofStmt
+ """
+ stmt = EofStmt()
+ assert stmt.type == "EOF"
+
+
+def test_eofstmt_dump():
+ """ Test EofStmt to_gerber()
+ """
+ stmt = EofStmt()
+ assert stmt.to_gerber() == "M02*"
+
+
+def test_eofstmt_string():
+ assert str(EofStmt()) == "<EOF Statement>"
+
+
+def test_quadmodestmt_factory():
+ """ Test QuadrantModeStmt.from_gerber()
+ """
+ line = "G74*"
+ stmt = QuadrantModeStmt.from_gerber(line)
+ assert stmt.type == "QuadrantMode"
+ assert stmt.mode == "single-quadrant"
+
+ line = "G75*"
+ stmt = QuadrantModeStmt.from_gerber(line)
+ assert stmt.mode == "multi-quadrant"
+
+
+def test_quadmodestmt_validation():
+ """ Test QuadrantModeStmt input validation
+ """
+ line = "G76*"
+ pytest.raises(ValueError, QuadrantModeStmt.from_gerber, line)
+ pytest.raises(ValueError, QuadrantModeStmt, "quadrant-ful")
+
+
+def test_quadmodestmt_dump():
+ """ Test QuadrantModeStmt.to_gerber()
+ """
+ for line in ("G74*", "G75*"):
+ stmt = QuadrantModeStmt.from_gerber(line)
+ assert stmt.to_gerber() == line
+
+
+def test_regionmodestmt_factory():
+ """ Test RegionModeStmt.from_gerber()
+ """
+ line = "G36*"
+ stmt = RegionModeStmt.from_gerber(line)
+ assert stmt.type == "RegionMode"
+ assert stmt.mode == "on"
+
+ line = "G37*"
+ stmt = RegionModeStmt.from_gerber(line)
+ assert stmt.mode == "off"
+
+
+def test_regionmodestmt_validation():
+ """ Test RegionModeStmt input validation
+ """
+ line = "G38*"
+ pytest.raises(ValueError, RegionModeStmt.from_gerber, line)
+ pytest.raises(ValueError, RegionModeStmt, "off-ish")
+
+
+def test_regionmodestmt_dump():
+ """ Test RegionModeStmt.to_gerber()
+ """
+ for line in ("G36*", "G37*"):
+ stmt = RegionModeStmt.from_gerber(line)
+ assert stmt.to_gerber() == line
+
+
+def test_unknownstmt():
+ """ Test UnknownStmt
+ """
+ line = "G696969*"
+ stmt = UnknownStmt(line)
+ assert stmt.type == "UNKNOWN"
+ assert stmt.line == line
+
+
+def test_unknownstmt_dump():
+ """ Test UnknownStmt.to_gerber()
+ """
+ lines = ("G696969*", "M03*")
+ for line in lines:
+ stmt = UnknownStmt(line)
+ assert stmt.to_gerber() == line
+
+
+def test_statement_string():
+ """ Test Statement.__str__()
+ """
+ stmt = Statement("PARAM")
+ assert "type=PARAM" in str(stmt)
+ stmt.test = "PASS"
+ assert "test=PASS" in str(stmt)
+ assert "type=PARAM" in str(stmt)
+
+
+def test_ADParamStmt_factory():
+ """ Test ADParamStmt factory
+ """
+ stmt = {"param": "AD", "d": 0, "shape": "C"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert ad.d == 0
+ assert ad.shape == "C"
+
+ stmt = {"param": "AD", "d": 1, "shape": "R"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert ad.d == 1
+ assert ad.shape == "R"
+
+ stmt = {"param": "AD", "d": 1, "shape": "C", "modifiers": "1.42"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert ad.d == 1
+ assert ad.shape == "C"
+ assert ad.modifiers == [(1.42,)]
+
+ stmt = {"param": "AD", "d": 1, "shape": "C", "modifiers": "1.42X"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert ad.d == 1
+ assert ad.shape == "C"
+ assert ad.modifiers == [(1.42,)]
+
+ stmt = {"param": "AD", "d": 1, "shape": "R", "modifiers": "1.42X1.24"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert ad.d == 1
+ assert ad.shape == "R"
+ assert ad.modifiers == [(1.42, 1.24)]
+
+
+def test_ADParamStmt_conversion():
+ stmt = {"param": "AD", "d": 0, "shape": "C", "modifiers": "25.4X25.4,25.4X25.4"}
+ ad = ADParamStmt.from_dict(stmt)
+ ad.units = "metric"
+
+ # No effect
+ ad.to_metric()
+ assert ad.modifiers[0] == (25.4, 25.4)
+ assert ad.modifiers[1] == (25.4, 25.4)
+
+ ad.to_inch()
+ assert ad.units == "inch"
+ assert ad.modifiers[0] == (1.0, 1.0)
+ assert ad.modifiers[1] == (1.0, 1.0)
+
+ # No effect
+ ad.to_inch()
+ assert ad.modifiers[0] == (1.0, 1.0)
+ assert ad.modifiers[1] == (1.0, 1.0)
+
+ stmt = {"param": "AD", "d": 0, "shape": "C", "modifiers": "1X1,1X1"}
+ ad = ADParamStmt.from_dict(stmt)
+ ad.units = "inch"
+
+ # No effect
+ ad.to_inch()
+ assert ad.modifiers[0] == (1.0, 1.0)
+ assert ad.modifiers[1] == (1.0, 1.0)
+
+ ad.to_metric()
+ assert ad.modifiers[0] == (25.4, 25.4)
+ assert ad.modifiers[1] == (25.4, 25.4)
+
+ # No effect
+ ad.to_metric()
+ assert ad.modifiers[0] == (25.4, 25.4)
+ assert ad.modifiers[1] == (25.4, 25.4)
+
+
+def test_ADParamStmt_dump():
+ stmt = {"param": "AD", "d": 0, "shape": "C"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert ad.to_gerber() == "%ADD0C*%"
+ stmt = {"param": "AD", "d": 0, "shape": "C", "modifiers": "1X1,1X1"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert ad.to_gerber() == "%ADD0C,1X1,1X1*%"
+
+
+def test_ADPamramStmt_string():
+ stmt = {"param": "AD", "d": 0, "shape": "C"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert str(ad) == "<Aperture Definition: 0: circle>"
+
+ stmt = {"param": "AD", "d": 0, "shape": "R"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert str(ad) == "<Aperture Definition: 0: rectangle>"
+
+ stmt = {"param": "AD", "d": 0, "shape": "O"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert str(ad) == "<Aperture Definition: 0: obround>"
+
+ stmt = {"param": "AD", "d": 0, "shape": "test"}
+ ad = ADParamStmt.from_dict(stmt)
+ assert str(ad) == "<Aperture Definition: 0: test>"
+
+
+def test_MIParamStmt_factory():
+ stmt = {"param": "MI", "a": 1, "b": 1}
+ mi = MIParamStmt.from_dict(stmt)
+ assert mi.a == 1
+ assert mi.b == 1
+
+
+def test_MIParamStmt_dump():
+ stmt = {"param": "MI", "a": 1, "b": 1}
+ mi = MIParamStmt.from_dict(stmt)
+ assert mi.to_gerber() == "%MIA1B1*%"
+ stmt = {"param": "MI", "a": 1}
+ mi = MIParamStmt.from_dict(stmt)
+ assert mi.to_gerber() == "%MIA1B0*%"
+ stmt = {"param": "MI", "b": 1}
+ mi = MIParamStmt.from_dict(stmt)
+ assert mi.to_gerber() == "%MIA0B1*%"
+
+
+def test_MIParamStmt_string():
+ stmt = {"param": "MI", "a": 1, "b": 1}
+ mi = MIParamStmt.from_dict(stmt)
+ assert str(mi) == "<Image Mirror: A=1 B=1>"
+
+ stmt = {"param": "MI", "b": 1}
+ mi = MIParamStmt.from_dict(stmt)
+ assert str(mi) == "<Image Mirror: A=0 B=1>"
+
+ stmt = {"param": "MI", "a": 1}
+ mi = MIParamStmt.from_dict(stmt)
+ assert str(mi) == "<Image Mirror: A=1 B=0>"
+
+
+def test_coordstmt_ctor():
+ cs = CoordStmt("G04", 0.0, 0.1, 0.2, 0.3, "D01", FileSettings())
+ assert cs.function == "G04"
+ assert cs.x == 0.0
+ assert cs.y == 0.1
+ assert cs.i == 0.2
+ assert cs.j == 0.3
+ assert cs.op == "D01"
+
+
+def test_coordstmt_factory():
+ stmt = {
+ "function": "G04",
+ "x": "0",
+ "y": "001",
+ "i": "002",
+ "j": "003",
+ "op": "D01",
+ }
+ cs = CoordStmt.from_dict(stmt, FileSettings())
+ assert cs.function == "G04"
+ assert cs.x == 0.0
+ assert cs.y == 0.1
+ assert cs.i == 0.2
+ assert cs.j == 0.3
+ assert cs.op == "D01"
+
+
+def test_coordstmt_dump():
+ cs = CoordStmt("G04", 0.0, 0.1, 0.2, 0.3, "D01", FileSettings())
+ assert cs.to_gerber(FileSettings()) == "G04X0Y001I002J003D01*"
+
+
+def test_coordstmt_conversion():
+ cs = CoordStmt("G71", 25.4, 25.4, 25.4, 25.4, "D01", FileSettings())
+ cs.units = "metric"
+
+ # No effect
+ cs.to_metric()
+ assert cs.x == 25.4
+ assert cs.y == 25.4
+ assert cs.i == 25.4
+ assert cs.j == 25.4
+ assert cs.function == "G71"
+
+ cs.to_inch()
+ assert cs.units == "inch"
+ assert cs.x == 1.0
+ assert cs.y == 1.0
+ assert cs.i == 1.0
+ assert cs.j == 1.0
+ assert cs.function == "G70"
+
+ # No effect
+ cs.to_inch()
+ assert cs.x == 1.0
+ assert cs.y == 1.0
+ assert cs.i == 1.0
+ assert cs.j == 1.0
+ assert cs.function == "G70"
+
+ cs = CoordStmt("G70", 1.0, 1.0, 1.0, 1.0, "D01", FileSettings())
+ cs.units = "inch"
+
+ # No effect
+ cs.to_inch()
+ assert cs.x == 1.0
+ assert cs.y == 1.0
+ assert cs.i == 1.0
+ assert cs.j == 1.0
+ assert cs.function == "G70"
+
+ cs.to_metric()
+ assert cs.x == 25.4
+ assert cs.y == 25.4
+ assert cs.i == 25.4
+ assert cs.j == 25.4
+ assert cs.function == "G71"
+
+ # No effect
+ cs.to_metric()
+ assert cs.x == 25.4
+ assert cs.y == 25.4
+ assert cs.i == 25.4
+ assert cs.j == 25.4
+ assert cs.function == "G71"
+
+
+def test_coordstmt_offset():
+ c = CoordStmt("G71", 0, 0, 0, 0, "D01", FileSettings())
+ c.offset(1, 0)
+ assert c.x == 1.0
+ assert c.y == 0.0
+ assert c.i == 1.0
+ assert c.j == 0.0
+ c.offset(0, 1)
+ assert c.x == 1.0
+ assert c.y == 1.0
+ assert c.i == 1.0
+ assert c.j == 1.0
+
+
+def test_coordstmt_string():
+ cs = CoordStmt("G04", 0, 1, 2, 3, "D01", FileSettings())
+ assert (
+ str(cs) == "<Coordinate Statement: Fn: G04 X: 0 Y: 1 I: 2 J: 3 Op: Lights On>"
+ )
+ cs = CoordStmt("G04", None, None, None, None, "D02", FileSettings())
+ assert str(cs) == "<Coordinate Statement: Fn: G04 Op: Lights Off>"
+ cs = CoordStmt("G04", None, None, None, None, "D03", FileSettings())
+ assert str(cs) == "<Coordinate Statement: Fn: G04 Op: Flash>"
+ cs = CoordStmt("G04", None, None, None, None, "TEST", FileSettings())
+ assert str(cs) == "<Coordinate Statement: Fn: G04 Op: TEST>"
+
+
+def test_aperturestmt_ctor():
+ ast = ApertureStmt(3, False)
+ assert ast.d == 3
+ assert ast.deprecated == False
+ ast = ApertureStmt(4, True)
+ assert ast.d == 4
+ assert ast.deprecated == True
+ ast = ApertureStmt(4, 1)
+ assert ast.d == 4
+ assert ast.deprecated == True
+ ast = ApertureStmt(3)
+ assert ast.d == 3
+ assert ast.deprecated == False
+
+
+def test_aperturestmt_dump():
+ ast = ApertureStmt(3, False)
+ assert ast.to_gerber() == "D3*"
+ ast = ApertureStmt(3, True)
+ assert ast.to_gerber() == "G54D3*"
+ assert str(ast) == "<Aperture: 3>"
diff --git a/gerber/tests/test_ipc356.py b/gerber/tests/test_ipc356.py
new file mode 100644
index 0000000..77f0782
--- /dev/null
+++ b/gerber/tests/test_ipc356.py
@@ -0,0 +1,148 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+import pytest
+from ..ipc356 import *
+from ..cam import FileSettings
+
+import os
+
+IPC_D_356_FILE = os.path.join(os.path.dirname(__file__), "resources/ipc-d-356.ipc")
+
+
+def test_read():
+ ipcfile = read(IPC_D_356_FILE)
+ assert isinstance(ipcfile, IPCNetlist)
+
+
+def test_parser():
+ ipcfile = read(IPC_D_356_FILE)
+ assert ipcfile.settings.units == "inch"
+ assert ipcfile.settings.angle_units == "degrees"
+ assert len(ipcfile.comments) == 3
+ assert len(ipcfile.parameters) == 4
+ assert len(ipcfile.test_records) == 105
+ assert len(ipcfile.components) == 21
+ assert len(ipcfile.vias) == 14
+ assert ipcfile.test_records[-1].net_name == "A_REALLY_LONG_NET_NAME"
+ assert ipcfile.outlines[0].type == "BOARD_EDGE"
+ assert set(ipcfile.outlines[0].points) == {
+ (0.0, 0.0),
+ (2.25, 0.0),
+ (2.25, 1.5),
+ (0.0, 1.5),
+ (0.13, 0.024),
+ }
+
+
+def test_comment():
+ c = IPC356_Comment("Layer Stackup:")
+ assert c.comment == "Layer Stackup:"
+ c = IPC356_Comment.from_line("C Layer Stackup: ")
+ assert c.comment == "Layer Stackup:"
+ pytest.raises(ValueError, IPC356_Comment.from_line, "P JOB")
+ assert str(c) == "<IPC-D-356 Comment: Layer Stackup:>"
+
+
+def test_parameter():
+ p = IPC356_Parameter("VER", "IPC-D-356A")
+ assert p.parameter == "VER"
+ assert p.value == "IPC-D-356A"
+ p = IPC356_Parameter.from_line("P VER IPC-D-356A ")
+ assert p.parameter == "VER"
+ assert p.value == "IPC-D-356A"
+ pytest.raises(ValueError, IPC356_Parameter.from_line, "C Layer Stackup: ")
+ assert str(p) == "<IPC-D-356 Parameter: VER=IPC-D-356A>"
+
+
+def test_eof():
+ e = IPC356_EndOfFile()
+ assert e.to_netlist() == "999"
+ assert str(e) == "<IPC-D-356 EOF>"
+
+
+def test_outline():
+ type = "BOARD_EDGE"
+ points = [(0.01, 0.01), (2.0, 2.0), (4.0, 2.0), (4.0, 6.0)]
+ b = IPC356_Outline(type, points)
+ assert b.type == type
+ assert b.points == points
+ b = IPC356_Outline.from_line(
+ "389BOARD_EDGE X100Y100 X20000Y20000 X40000 Y60000",
+ FileSettings(units="inch"),
+ )
+ assert b.type == "BOARD_EDGE"
+ assert b.points == points
+
+
+def test_test_record():
+ pytest.raises(ValueError, IPC356_TestRecord.from_line, "P JOB", FileSettings())
+ record_string = (
+ "317+5VDC VIA - D0150PA00X 006647Y 012900X0000 S3"
+ )
+ r = IPC356_TestRecord.from_line(record_string, FileSettings(units="inch"))
+ assert r.feature_type == "through-hole"
+ assert r.net_name == "+5VDC"
+ assert r.id == "VIA"
+ pytest.approx(r.hole_diameter, 0.015)
+ assert r.plated
+ assert r.access == "both"
+ pytest.approx(r.x_coord, 0.6647)
+ pytest.approx(r.y_coord, 1.29)
+ assert r.rect_x == 0.0
+ assert r.soldermask_info == "both"
+ r = IPC356_TestRecord.from_line(record_string, FileSettings(units="metric"))
+ pytest.approx(r.hole_diameter, 0.15)
+ pytest.approx(r.x_coord, 6.647)
+ pytest.approx(r.y_coord, 12.9)
+ assert r.rect_x == 0.0
+ assert str(r) == "<IPC-D-356 +5VDC Test Record: through-hole>"
+
+ record_string = (
+ "327+3.3VDC R40 -1 PA01X 032100Y 007124X0236Y0315R180 S0"
+ )
+ r = IPC356_TestRecord.from_line(record_string, FileSettings(units="inch"))
+ assert r.feature_type == "smt"
+ assert r.net_name == "+3.3VDC"
+ assert r.id == "R40"
+ assert r.pin == "1"
+ assert r.plated
+ assert r.access == "top"
+ pytest.approx(r.x_coord, 3.21)
+ pytest.approx(r.y_coord, 0.7124)
+ pytest.approx(r.rect_x, 0.0236)
+ pytest.approx(r.rect_y, 0.0315)
+ assert r.rect_rotation == 180
+ assert r.soldermask_info == "none"
+ r = IPC356_TestRecord.from_line(record_string, FileSettings(units="metric"))
+ pytest.approx(r.x_coord, 32.1)
+ pytest.approx(r.y_coord, 7.124)
+ pytest.approx(r.rect_x, 0.236)
+ pytest.approx(r.rect_y, 0.315)
+
+ record_string = (
+ "317 J4 -M2 D0330PA00X 012447Y 008030X0000 S1"
+ )
+ r = IPC356_TestRecord.from_line(record_string, FileSettings(units="inch"))
+ assert r.feature_type == "through-hole"
+ assert r.id == "J4"
+ assert r.pin == "M2"
+ pytest.approx(r.hole_diameter, 0.033)
+ assert r.plated
+ assert r.access == "both"
+ pytest.approx(r.x_coord, 1.2447)
+ pytest.approx(r.y_coord, 0.8030)
+ pytest.approx(r.rect_x, 0.0)
+ assert r.soldermask_info == "primary side"
+
+ record_string = "317SCL COMMUNICATION-1 D 40PA00X 34000Y 20000X 600Y1200R270 "
+ r = IPC356_TestRecord.from_line(record_string, FileSettings(units="inch"))
+ assert r.feature_type == "through-hole"
+ assert r.net_name == "SCL"
+ assert r.id == "COMMUNICATION"
+ assert r.pin == "1"
+ pytest.approx(r.hole_diameter, 0.004)
+ assert r.plated
+ pytest.approx(r.x_coord, 3.4)
+ pytest.approx(r.y_coord, 2.0)
diff --git a/gerber/tests/test_layers.py b/gerber/tests/test_layers.py
new file mode 100644
index 0000000..2178787
--- /dev/null
+++ b/gerber/tests/test_layers.py
@@ -0,0 +1,158 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2016 Hamilton Kibbe <ham@hamiltonkib.be>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import os
+
+from ..layers import *
+from ..common import read
+
+NCDRILL_FILE = os.path.join(os.path.dirname(__file__), "resources/ncdrill.DRD")
+NETLIST_FILE = os.path.join(os.path.dirname(__file__), "resources/ipc-d-356.ipc")
+COPPER_FILE = os.path.join(os.path.dirname(__file__), "resources/top_copper.GTL")
+
+
+def test_guess_layer_class():
+ """ Test layer type inferred correctly from filename
+ """
+
+ # Add any specific test cases here (filename, layer_class)
+ test_vectors = [
+ (None, "unknown"),
+ ("NCDRILL.TXT", "unknown"),
+ ("example_board.gtl", "top"),
+ ("exampmle_board.sst", "topsilk"),
+ ("ipc-d-356.ipc", "ipc_netlist"),
+ ]
+
+ for hint in hints:
+ for ext in hint.ext:
+ assert hint.layer == guess_layer_class("board.{}".format(ext))
+ for name in hint.name:
+ assert hint.layer == guess_layer_class("{}.pho".format(name))
+
+ for filename, layer_class in test_vectors:
+ assert layer_class == guess_layer_class(filename)
+
+
+def test_guess_layer_class_regex():
+ """ Test regular expressions for layer matching
+ """
+
+ # Add any specific test case (filename, layer_class)
+ test_vectors = [("test - top copper.gbr", "top"), ("test - copper top.gbr", "top")]
+
+ # Add custom regular expressions
+ layer_hints = [
+ Hint(
+ layer="top",
+ ext=[],
+ name=[],
+ regex=r"(.*)(\scopper top|\stop copper).gbr",
+ content=[],
+ )
+ ]
+ hints.extend(layer_hints)
+
+ for filename, layer_class in test_vectors:
+ assert layer_class == guess_layer_class(filename)
+
+
+def test_guess_layer_class_by_content():
+ """ Test layer class by checking content
+ """
+
+ expected_layer_class = "bottom"
+ filename = os.path.join(
+ os.path.dirname(__file__), "resources/example_guess_by_content.g0"
+ )
+
+ layer_hints = [
+ Hint(
+ layer="bottom",
+ ext=[],
+ name=[],
+ regex="",
+ content=["G04 Layer name: Bottom"],
+ )
+ ]
+ hints.extend(layer_hints)
+
+ assert expected_layer_class == guess_layer_class_by_content(filename)
+
+
+def test_sort_layers():
+ """ Test layer ordering
+ """
+ layers = [
+ PCBLayer(layer_class="drawing"),
+ PCBLayer(layer_class="drill"),
+ PCBLayer(layer_class="bottompaste"),
+ PCBLayer(layer_class="bottomsilk"),
+ PCBLayer(layer_class="bottommask"),
+ PCBLayer(layer_class="bottom"),
+ PCBLayer(layer_class="internal"),
+ PCBLayer(layer_class="top"),
+ PCBLayer(layer_class="topmask"),
+ PCBLayer(layer_class="topsilk"),
+ PCBLayer(layer_class="toppaste"),
+ PCBLayer(layer_class="outline"),
+ ]
+
+ layer_order = [
+ "outline",
+ "toppaste",
+ "topsilk",
+ "topmask",
+ "top",
+ "internal",
+ "bottom",
+ "bottommask",
+ "bottomsilk",
+ "bottompaste",
+ "drill",
+ "drawing",
+ ]
+ bottom_order = list(reversed(layer_order[:10])) + layer_order[10:]
+ assert [l.layer_class for l in sort_layers(layers)] == layer_order
+ assert [l.layer_class for l in sort_layers(layers, from_top=False)] == bottom_order
+
+
+def test_PCBLayer_from_file():
+ layer = PCBLayer.from_cam(read(COPPER_FILE))
+ assert isinstance(layer, PCBLayer)
+ layer = PCBLayer.from_cam(read(NCDRILL_FILE))
+ assert isinstance(layer, DrillLayer)
+ layer = PCBLayer.from_cam(read(NETLIST_FILE))
+ assert isinstance(layer, PCBLayer)
+ assert layer.layer_class == "ipc_netlist"
+
+
+def test_PCBLayer_bounds():
+ source = read(COPPER_FILE)
+ layer = PCBLayer.from_cam(source)
+ assert source.bounds == layer.bounds
+
+
+def test_DrillLayer_from_cam():
+ no_exceptions = True
+ try:
+ layer = DrillLayer.from_cam(read(NCDRILL_FILE))
+ assert isinstance(layer, DrillLayer)
+ except:
+ no_exceptions = False
+ assert no_exceptions
diff --git a/gerber/tests/test_primitives.py b/gerber/tests/test_primitives.py
new file mode 100644
index 0000000..ad5b34f
--- /dev/null
+++ b/gerber/tests/test_primitives.py
@@ -0,0 +1,1429 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+import pytest
+from operator import add
+from ..primitives import *
+
+
+def test_primitive_smoketest():
+ p = Primitive()
+ try:
+ p.bounding_box
+ assert not True, "should have thrown the exception"
+ except NotImplementedError:
+ pass
+ # pytest.raises(NotImplementedError, p.bounding_box)
+
+ p.to_metric()
+ p.to_inch()
+ # try:
+ # p.offset(1, 1)
+ # assert_false(True, 'should have thrown the exception')
+ # except NotImplementedError:
+ # pass
+
+
+def test_line_angle():
+ """ Test Line primitive angle calculation
+ """
+ cases = [
+ ((0, 0), (1, 0), math.radians(0)),
+ ((0, 0), (1, 1), math.radians(45)),
+ ((0, 0), (0, 1), math.radians(90)),
+ ((0, 0), (-1, 1), math.radians(135)),
+ ((0, 0), (-1, 0), math.radians(180)),
+ ((0, 0), (-1, -1), math.radians(225)),
+ ((0, 0), (0, -1), math.radians(270)),
+ ((0, 0), (1, -1), math.radians(315)),
+ ]
+ for start, end, expected in cases:
+ l = Line(start, end, 0)
+ line_angle = (l.angle + 2 * math.pi) % (2 * math.pi)
+ pytest.approx(line_angle, expected)
+
+
+def test_line_bounds():
+ """ Test Line primitive bounding box calculation
+ """
+ cases = [
+ ((0, 0), (1, 1), ((-1, 2), (-1, 2))),
+ ((-1, -1), (1, 1), ((-2, 2), (-2, 2))),
+ ((1, 1), (-1, -1), ((-2, 2), (-2, 2))),
+ ((-1, 1), (1, -1), ((-2, 2), (-2, 2))),
+ ]
+
+ c = Circle((0, 0), 2)
+ r = Rectangle((0, 0), 2, 2)
+ for shape in (c, r):
+ for start, end, expected in cases:
+ l = Line(start, end, shape)
+ assert l.bounding_box == expected
+ # Test a non-square rectangle
+ r = Rectangle((0, 0), 3, 2)
+ cases = [
+ ((0, 0), (1, 1), ((-1.5, 2.5), (-1, 2))),
+ ((-1, -1), (1, 1), ((-2.5, 2.5), (-2, 2))),
+ ((1, 1), (-1, -1), ((-2.5, 2.5), (-2, 2))),
+ ((-1, 1), (1, -1), ((-2.5, 2.5), (-2, 2))),
+ ]
+ for start, end, expected in cases:
+ l = Line(start, end, r)
+ assert l.bounding_box == expected
+
+
+def test_line_vertices():
+ c = Circle((0, 0), 2)
+ l = Line((0, 0), (1, 1), c)
+ assert l.vertices == None
+
+ # All 4 compass points, all 4 quadrants and the case where start == end
+ test_cases = [
+ ((0, 0), (1, 0), ((-1, -1), (-1, 1), (2, 1), (2, -1))),
+ ((0, 0), (1, 1), ((-1, -1), (-1, 1), (0, 2), (2, 2), (2, 0), (1, -1))),
+ ((0, 0), (0, 1), ((-1, -1), (-1, 2), (1, 2), (1, -1))),
+ ((0, 0), (-1, 1), ((-1, -1), (-2, 0), (-2, 2), (0, 2), (1, 1), (1, -1))),
+ ((0, 0), (-1, 0), ((-2, -1), (-2, 1), (1, 1), (1, -1))),
+ ((0, 0), (-1, -1), ((-2, -2), (1, -1), (1, 1), (-1, 1), (-2, 0), (0, -2))),
+ ((0, 0), (0, -1), ((-1, -2), (-1, 1), (1, 1), (1, -2))),
+ ((0, 0), (1, -1), ((-1, -1), (0, -2), (2, -2), (2, 0), (1, 1), (-1, 1))),
+ ((0, 0), (0, 0), ((-1, -1), (-1, 1), (1, 1), (1, -1))),
+ ]
+ r = Rectangle((0, 0), 2, 2)
+
+ for start, end, vertices in test_cases:
+ l = Line(start, end, r)
+ assert set(vertices) == set(l.vertices)
+
+
+def test_line_conversion():
+ c = Circle((0, 0), 25.4, units="metric")
+ l = Line((2.54, 25.4), (254.0, 2540.0), c, units="metric")
+
+ # No effect
+ l.to_metric()
+ assert l.start == (2.54, 25.4)
+ assert l.end == (254.0, 2540.0)
+ assert l.aperture.diameter == 25.4
+
+ l.to_inch()
+ assert l.start == (0.1, 1.0)
+ assert l.end == (10.0, 100.0)
+ assert l.aperture.diameter == 1.0
+
+ # No effect
+ l.to_inch()
+ assert l.start == (0.1, 1.0)
+ assert l.end == (10.0, 100.0)
+ assert l.aperture.diameter == 1.0
+
+ c = Circle((0, 0), 1.0, units="inch")
+ l = Line((0.1, 1.0), (10.0, 100.0), c, units="inch")
+
+ # No effect
+ l.to_inch()
+ assert l.start == (0.1, 1.0)
+ assert l.end == (10.0, 100.0)
+ assert l.aperture.diameter == 1.0
+
+ l.to_metric()
+ assert l.start == (2.54, 25.4)
+ assert l.end == (254.0, 2540.0)
+ assert l.aperture.diameter == 25.4
+
+ # No effect
+ l.to_metric()
+ assert l.start == (2.54, 25.4)
+ assert l.end == (254.0, 2540.0)
+ assert l.aperture.diameter == 25.4
+
+ r = Rectangle((0, 0), 25.4, 254.0, units="metric")
+ l = Line((2.54, 25.4), (254.0, 2540.0), r, units="metric")
+ l.to_inch()
+ assert l.start == (0.1, 1.0)
+ assert l.end == (10.0, 100.0)
+ assert l.aperture.width == 1.0
+ assert l.aperture.height == 10.0
+
+ r = Rectangle((0, 0), 1.0, 10.0, units="inch")
+ l = Line((0.1, 1.0), (10.0, 100.0), r, units="inch")
+ l.to_metric()
+ assert l.start == (2.54, 25.4)
+ assert l.end == (254.0, 2540.0)
+ assert l.aperture.width == 25.4
+ assert l.aperture.height == 254.0
+
+
+def test_line_offset():
+ c = Circle((0, 0), 1)
+ l = Line((0, 0), (1, 1), c)
+ l.offset(1, 0)
+ assert l.start == (1.0, 0.0)
+ assert l.end == (2.0, 1.0)
+ l.offset(0, 1)
+ assert l.start == (1.0, 1.0)
+ assert l.end == (2.0, 2.0)
+
+
+def test_arc_radius():
+ """ Test Arc primitive radius calculation
+ """
+ cases = [((-3, 4), (5, 0), (0, 0), 5), ((0, 1), (1, 0), (0, 0), 1)]
+
+ for start, end, center, radius in cases:
+ a = Arc(start, end, center, "clockwise", 0, "single-quadrant")
+ assert a.radius == radius
+
+
+def test_arc_sweep_angle():
+ """ Test Arc primitive sweep angle calculation
+ """
+ cases = [
+ ((1, 0), (0, 1), (0, 0), "counterclockwise", math.radians(90)),
+ ((1, 0), (0, 1), (0, 0), "clockwise", math.radians(270)),
+ ((1, 0), (-1, 0), (0, 0), "clockwise", math.radians(180)),
+ ((1, 0), (-1, 0), (0, 0), "counterclockwise", math.radians(180)),
+ ]
+
+ for start, end, center, direction, sweep in cases:
+ c = Circle((0, 0), 1)
+ a = Arc(start, end, center, direction, c, "single-quadrant")
+ assert a.sweep_angle == sweep
+
+
+def test_arc_bounds():
+ """ Test Arc primitive bounding box calculation
+ """
+ cases = [
+ ((1, 0), (0, 1), (0, 0), "clockwise", ((-1.5, 1.5), (-1.5, 1.5))),
+ ((1, 0), (0, 1), (0, 0), "counterclockwise", ((-0.5, 1.5), (-0.5, 1.5))),
+ ((0, 1), (-1, 0), (0, 0), "clockwise", ((-1.5, 1.5), (-1.5, 1.5))),
+ ((0, 1), (-1, 0), (0, 0), "counterclockwise", ((-1.5, 0.5), (-0.5, 1.5))),
+ ((-1, 0), (0, -1), (0, 0), "clockwise", ((-1.5, 1.5), (-1.5, 1.5))),
+ ((-1, 0), (0, -1), (0, 0), "counterclockwise", ((-1.5, 0.5), (-1.5, 0.5))),
+ ((0, -1), (1, 0), (0, 0), "clockwise", ((-1.5, 1.5), (-1.5, 1.5))),
+ ((0, -1), (1, 0), (0, 0), "counterclockwise", ((-0.5, 1.5), (-1.5, 0.5))),
+ # Arcs with the same start and end point render a full circle
+ ((1, 0), (1, 0), (0, 0), "clockwise", ((-1.5, 1.5), (-1.5, 1.5))),
+ ((1, 0), (1, 0), (0, 0), "counterclockwise", ((-1.5, 1.5), (-1.5, 1.5))),
+ ]
+ for start, end, center, direction, bounds in cases:
+ c = Circle((0, 0), 1)
+ a = Arc(start, end, center, direction, c, "multi-quadrant")
+ assert a.bounding_box == bounds
+
+
+def test_arc_bounds_no_aperture():
+ """ Test Arc primitive bounding box calculation ignoring aperture
+ """
+ cases = [
+ ((1, 0), (0, 1), (0, 0), "clockwise", ((-1.0, 1.0), (-1.0, 1.0))),
+ ((1, 0), (0, 1), (0, 0), "counterclockwise", ((0.0, 1.0), (0.0, 1.0))),
+ ((0, 1), (-1, 0), (0, 0), "clockwise", ((-1.0, 1.0), (-1.0, 1.0))),
+ ((0, 1), (-1, 0), (0, 0), "counterclockwise", ((-1.0, 0.0), (0.0, 1.0))),
+ ((-1, 0), (0, -1), (0, 0), "clockwise", ((-1.0, 1.0), (-1.0, 1.0))),
+ ((-1, 0), (0, -1), (0, 0), "counterclockwise", ((-1.0, 0.0), (-1.0, 0.0))),
+ ((0, -1), (1, 0), (0, 0), "clockwise", ((-1.0, 1.0), (-1.0, 1.0))),
+ ((0, -1), (1, 0), (0, 0), "counterclockwise", ((-0.0, 1.0), (-1.0, 0.0))),
+ # Arcs with the same start and end point render a full circle
+ ((1, 0), (1, 0), (0, 0), "clockwise", ((-1.0, 1.0), (-1.0, 1.0))),
+ ((1, 0), (1, 0), (0, 0), "counterclockwise", ((-1.0, 1.0), (-1.0, 1.0))),
+ ]
+ for start, end, center, direction, bounds in cases:
+ c = Circle((0, 0), 1)
+ a = Arc(start, end, center, direction, c, "multi-quadrant")
+ assert a.bounding_box_no_aperture == bounds
+
+
+def test_arc_conversion():
+ c = Circle((0, 0), 25.4, units="metric")
+ a = Arc(
+ (2.54, 25.4),
+ (254.0, 2540.0),
+ (25400.0, 254000.0),
+ "clockwise",
+ c,
+ "single-quadrant",
+ units="metric",
+ )
+
+ # No effect
+ a.to_metric()
+ assert a.start == (2.54, 25.4)
+ assert a.end == (254.0, 2540.0)
+ assert a.center == (25400.0, 254000.0)
+ assert a.aperture.diameter == 25.4
+
+ a.to_inch()
+ assert a.start == (0.1, 1.0)
+ assert a.end == (10.0, 100.0)
+ assert a.center == (1000.0, 10000.0)
+ assert a.aperture.diameter == 1.0
+
+ # no effect
+ a.to_inch()
+ assert a.start == (0.1, 1.0)
+ assert a.end == (10.0, 100.0)
+ assert a.center == (1000.0, 10000.0)
+ assert a.aperture.diameter == 1.0
+
+ c = Circle((0, 0), 1.0, units="inch")
+ a = Arc(
+ (0.1, 1.0),
+ (10.0, 100.0),
+ (1000.0, 10000.0),
+ "clockwise",
+ c,
+ "single-quadrant",
+ units="inch",
+ )
+ a.to_metric()
+ assert a.start == (2.54, 25.4)
+ assert a.end == (254.0, 2540.0)
+ assert a.center == (25400.0, 254000.0)
+ assert a.aperture.diameter == 25.4
+
+
+def test_arc_offset():
+ c = Circle((0, 0), 1)
+ a = Arc((0, 0), (1, 1), (2, 2), "clockwise", c, "single-quadrant")
+ a.offset(1, 0)
+ assert a.start == (1.0, 0.0)
+ assert a.end == (2.0, 1.0)
+ assert a.center == (3.0, 2.0)
+ a.offset(0, 1)
+ assert a.start == (1.0, 1.0)
+ assert a.end == (2.0, 2.0)
+ assert a.center == (3.0, 3.0)
+
+
+def test_circle_radius():
+ """ Test Circle primitive radius calculation
+ """
+ c = Circle((1, 1), 2)
+ assert c.radius == 1
+
+
+def test_circle_hole_radius():
+ """ Test Circle primitive hole radius calculation
+ """
+ c = Circle((1, 1), 4, 2)
+ assert c.hole_radius == 1
+
+
+def test_circle_bounds():
+ """ Test Circle bounding box calculation
+ """
+ c = Circle((1, 1), 2)
+ assert c.bounding_box == ((0, 2), (0, 2))
+
+
+def test_circle_conversion():
+ """Circle conversion of units"""
+ # Circle initially metric, no hole
+ c = Circle((2.54, 25.4), 254.0, units="metric")
+
+ c.to_metric() # shouldn't do antyhing
+ assert c.position == (2.54, 25.4)
+ assert c.diameter == 254.0
+ assert c.hole_diameter == None
+
+ c.to_inch()
+ assert c.position == (0.1, 1.0)
+ assert c.diameter == 10.0
+ assert c.hole_diameter == None
+
+ # no effect
+ c.to_inch()
+ assert c.position == (0.1, 1.0)
+ assert c.diameter == 10.0
+ assert c.hole_diameter == None
+
+ # Circle initially metric, with hole
+ c = Circle((2.54, 25.4), 254.0, 127.0, units="metric")
+
+ c.to_metric() # shouldn't do antyhing
+ assert c.position == (2.54, 25.4)
+ assert c.diameter == 254.0
+ assert c.hole_diameter == 127.0
+
+ c.to_inch()
+ assert c.position == (0.1, 1.0)
+ assert c.diameter == 10.0
+ assert c.hole_diameter == 5.0
+
+ # no effect
+ c.to_inch()
+ assert c.position == (0.1, 1.0)
+ assert c.diameter == 10.0
+ assert c.hole_diameter == 5.0
+
+ # Circle initially inch, no hole
+ c = Circle((0.1, 1.0), 10.0, units="inch")
+ # No effect
+ c.to_inch()
+ assert c.position == (0.1, 1.0)
+ assert c.diameter == 10.0
+ assert c.hole_diameter == None
+
+ c.to_metric()
+ assert c.position == (2.54, 25.4)
+ assert c.diameter == 254.0
+ assert c.hole_diameter == None
+
+ # no effect
+ c.to_metric()
+ assert c.position == (2.54, 25.4)
+ assert c.diameter == 254.0
+ assert c.hole_diameter == None
+
+ c = Circle((0.1, 1.0), 10.0, 5.0, units="inch")
+ # No effect
+ c.to_inch()
+ assert c.position == (0.1, 1.0)
+ assert c.diameter == 10.0
+ assert c.hole_diameter == 5.0
+
+ c.to_metric()
+ assert c.position == (2.54, 25.4)
+ assert c.diameter == 254.0
+ assert c.hole_diameter == 127.0
+
+ # no effect
+ c.to_metric()
+ assert c.position == (2.54, 25.4)
+ assert c.diameter == 254.0
+ assert c.hole_diameter == 127.0
+
+
+def test_circle_offset():
+ c = Circle((0, 0), 1)
+ c.offset(1, 0)
+ assert c.position == (1.0, 0.0)
+ c.offset(0, 1)
+ assert c.position == (1.0, 1.0)
+
+
+def test_ellipse_ctor():
+ """ Test ellipse creation
+ """
+ e = Ellipse((2, 2), 3, 2)
+ assert e.position == (2, 2)
+ assert e.width == 3
+ assert e.height == 2
+
+
+def test_ellipse_bounds():
+ """ Test ellipse bounding box calculation
+ """
+ e = Ellipse((2, 2), 4, 2)
+ assert e.bounding_box == ((0, 4), (1, 3))
+ e = Ellipse((2, 2), 4, 2, rotation=90)
+ assert e.bounding_box == ((1, 3), (0, 4))
+ e = Ellipse((2, 2), 4, 2, rotation=180)
+ assert e.bounding_box == ((0, 4), (1, 3))
+ e = Ellipse((2, 2), 4, 2, rotation=270)
+ assert e.bounding_box == ((1, 3), (0, 4))
+
+
+def test_ellipse_conversion():
+ e = Ellipse((2.54, 25.4), 254.0, 2540.0, units="metric")
+
+ # No effect
+ e.to_metric()
+ assert e.position == (2.54, 25.4)
+ assert e.width == 254.0
+ assert e.height == 2540.0
+
+ e.to_inch()
+ assert e.position == (0.1, 1.0)
+ assert e.width == 10.0
+ assert e.height == 100.0
+
+ # No effect
+ e.to_inch()
+ assert e.position == (0.1, 1.0)
+ assert e.width == 10.0
+ assert e.height == 100.0
+
+ e = Ellipse((0.1, 1.0), 10.0, 100.0, units="inch")
+
+ # no effect
+ e.to_inch()
+ assert e.position == (0.1, 1.0)
+ assert e.width == 10.0
+ assert e.height == 100.0
+
+ e.to_metric()
+ assert e.position == (2.54, 25.4)
+ assert e.width == 254.0
+ assert e.height == 2540.0
+
+ # No effect
+ e.to_metric()
+ assert e.position == (2.54, 25.4)
+ assert e.width == 254.0
+ assert e.height == 2540.0
+
+
+def test_ellipse_offset():
+ e = Ellipse((0, 0), 1, 2)
+ e.offset(1, 0)
+ assert e.position == (1.0, 0.0)
+ e.offset(0, 1)
+ assert e.position == (1.0, 1.0)
+
+
+def test_rectangle_ctor():
+ """ Test rectangle creation
+ """
+ test_cases = (((0, 0), 1, 1), ((0, 0), 1, 2), ((1, 1), 1, 2))
+ for pos, width, height in test_cases:
+ r = Rectangle(pos, width, height)
+ assert r.position == pos
+ assert r.width == width
+ assert r.height == height
+
+
+def test_rectangle_hole_radius():
+ """ Test rectangle hole diameter calculation
+ """
+ r = Rectangle((0, 0), 2, 2)
+ assert 0 == r.hole_radius
+
+ r = Rectangle((0, 0), 2, 2, 1)
+ assert 0.5 == r.hole_radius
+
+
+def test_rectangle_bounds():
+ """ Test rectangle bounding box calculation
+ """
+ r = Rectangle((0, 0), 2, 2)
+ xbounds, ybounds = r.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+ r = Rectangle((0, 0), 2, 2, rotation=45)
+ xbounds, ybounds = r.bounding_box
+ pytest.approx(xbounds, (-math.sqrt(2), math.sqrt(2)))
+ pytest.approx(ybounds, (-math.sqrt(2), math.sqrt(2)))
+
+
+def test_rectangle_vertices():
+ sqrt2 = math.sqrt(2.0)
+ TEST_VECTORS = [
+ ((0, 0), 2.0, 2.0, 0.0, ((-1.0, -1.0), (-1.0, 1.0), (1.0, 1.0), (1.0, -1.0))),
+ ((0, 0), 2.0, 3.0, 0.0, ((-1.0, -1.5), (-1.0, 1.5), (1.0, 1.5), (1.0, -1.5))),
+ ((0, 0), 2.0, 2.0, 90.0, ((-1.0, -1.0), (-1.0, 1.0), (1.0, 1.0), (1.0, -1.0))),
+ ((0, 0), 3.0, 2.0, 90.0, ((-1.0, -1.5), (-1.0, 1.5), (1.0, 1.5), (1.0, -1.5))),
+ (
+ (0, 0),
+ 2.0,
+ 2.0,
+ 45.0,
+ ((-sqrt2, 0.0), (0.0, sqrt2), (sqrt2, 0), (0, -sqrt2)),
+ ),
+ ]
+ for pos, width, height, rotation, expected in TEST_VECTORS:
+ r = Rectangle(pos, width, height, rotation=rotation)
+ for test, expect in zip(sorted(r.vertices), sorted(expected)):
+ pytest.approx(test, expect)
+
+ r = Rectangle((0, 0), 2.0, 2.0, rotation=0.0)
+ r.rotation = 45.0
+ for test, expect in zip(
+ sorted(r.vertices),
+ sorted(((-sqrt2, 0.0), (0.0, sqrt2), (sqrt2, 0), (0, -sqrt2))),
+ ):
+ pytest.approx(test, expect)
+
+
+def test_rectangle_segments():
+
+ r = Rectangle((0, 0), 2.0, 2.0)
+ expected = [vtx for segment in r.segments for vtx in segment]
+ for vertex in r.vertices:
+ assert vertex in expected
+
+
+def test_rectangle_conversion():
+ """Test converting rectangles between units"""
+
+ # Initially metric no hole
+ r = Rectangle((2.54, 25.4), 254.0, 2540.0, units="metric")
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+
+ # Initially metric with hole
+ r = Rectangle((2.54, 25.4), 254.0, 2540.0, 127.0, units="metric")
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.hole_diameter == 127.0
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.hole_diameter == 5.0
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.hole_diameter == 5.0
+
+ # Initially inch, no hole
+ r = Rectangle((0.1, 1.0), 10.0, 100.0, units="inch")
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+
+ # Initially inch with hole
+ r = Rectangle((0.1, 1.0), 10.0, 100.0, 5.0, units="inch")
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.hole_diameter == 5.0
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.hole_diameter == 127.0
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.hole_diameter == 127.0
+
+
+def test_rectangle_offset():
+ r = Rectangle((0, 0), 1, 2)
+ r.offset(1, 0)
+ assert r.position == (1.0, 0.0)
+ r.offset(0, 1)
+ assert r.position == (1.0, 1.0)
+
+
+def test_diamond_ctor():
+ """ Test diamond creation
+ """
+ test_cases = (((0, 0), 1, 1), ((0, 0), 1, 2), ((1, 1), 1, 2))
+ for pos, width, height in test_cases:
+ d = Diamond(pos, width, height)
+ assert d.position == pos
+ assert d.width == width
+ assert d.height == height
+
+
+def test_diamond_bounds():
+ """ Test diamond bounding box calculation
+ """
+ d = Diamond((0, 0), 2, 2)
+ xbounds, ybounds = d.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+ d = Diamond((0, 0), math.sqrt(2), math.sqrt(2), rotation=45)
+ xbounds, ybounds = d.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+
+
+def test_diamond_conversion():
+ d = Diamond((2.54, 25.4), 254.0, 2540.0, units="metric")
+
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.width == 254.0
+ assert d.height == 2540.0
+
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.width == 10.0
+ assert d.height == 100.0
+
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.width == 10.0
+ assert d.height == 100.0
+
+ d = Diamond((0.1, 1.0), 10.0, 100.0, units="inch")
+
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.width == 10.0
+ assert d.height == 100.0
+
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.width == 254.0
+ assert d.height == 2540.0
+
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.width == 254.0
+ assert d.height == 2540.0
+
+
+def test_diamond_offset():
+ d = Diamond((0, 0), 1, 2)
+ d.offset(1, 0)
+ assert d.position == (1.0, 0.0)
+ d.offset(0, 1)
+ assert d.position == (1.0, 1.0)
+
+
+def test_chamfer_rectangle_ctor():
+ """ Test chamfer rectangle creation
+ """
+ test_cases = (
+ ((0, 0), 1, 1, 0.2, (True, True, False, False)),
+ ((0, 0), 1, 2, 0.3, (True, True, True, True)),
+ ((1, 1), 1, 2, 0.4, (False, False, False, False)),
+ )
+ for pos, width, height, chamfer, corners in test_cases:
+ r = ChamferRectangle(pos, width, height, chamfer, corners)
+ assert r.position == pos
+ assert r.width == width
+ assert r.height == height
+ assert r.chamfer == chamfer
+ pytest.approx(r.corners, corners)
+
+
+def test_chamfer_rectangle_bounds():
+ """ Test chamfer rectangle bounding box calculation
+ """
+ r = ChamferRectangle((0, 0), 2, 2, 0.2, (True, True, False, False))
+ xbounds, ybounds = r.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+ r = ChamferRectangle((0, 0), 2, 2, 0.2, (True, True, False, False), rotation=45)
+ xbounds, ybounds = r.bounding_box
+ pytest.approx(xbounds, (-math.sqrt(2), math.sqrt(2)))
+ pytest.approx(ybounds, (-math.sqrt(2), math.sqrt(2)))
+
+
+def test_chamfer_rectangle_conversion():
+ r = ChamferRectangle(
+ (2.54, 25.4), 254.0, 2540.0, 0.254, (True, True, False, False), units="metric"
+ )
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.chamfer == 0.254
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.chamfer == 0.01
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.chamfer == 0.01
+
+ r = ChamferRectangle(
+ (0.1, 1.0), 10.0, 100.0, 0.01, (True, True, False, False), units="inch"
+ )
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.chamfer == 0.01
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.chamfer == 0.254
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.chamfer == 0.254
+
+
+def test_chamfer_rectangle_offset():
+ r = ChamferRectangle((0, 0), 1, 2, 0.01, (True, True, False, False))
+ r.offset(1, 0)
+ assert r.position == (1.0, 0.0)
+ r.offset(0, 1)
+ assert r.position == (1.0, 1.0)
+
+
+def test_chamfer_rectangle_vertices():
+ TEST_VECTORS = [
+ (
+ 1.0,
+ (True, True, True, True),
+ (
+ (-2.5, -1.5),
+ (-2.5, 1.5),
+ (-1.5, 2.5),
+ (1.5, 2.5),
+ (2.5, 1.5),
+ (2.5, -1.5),
+ (1.5, -2.5),
+ (-1.5, -2.5),
+ ),
+ ),
+ (
+ 1.0,
+ (True, False, False, False),
+ ((-2.5, -2.5), (-2.5, 2.5), (1.5, 2.5), (2.5, 1.5), (2.5, -2.5)),
+ ),
+ (
+ 1.0,
+ (False, True, False, False),
+ ((-2.5, -2.5), (-2.5, 1.5), (-1.5, 2.5), (2.5, 2.5), (2.5, -2.5)),
+ ),
+ (
+ 1.0,
+ (False, False, True, False),
+ ((-2.5, -1.5), (-2.5, 2.5), (2.5, 2.5), (2.5, -2.5), (-1.5, -2.5)),
+ ),
+ (
+ 1.0,
+ (False, False, False, True),
+ ((-2.5, -2.5), (-2.5, 2.5), (2.5, 2.5), (2.5, -1.5), (1.5, -2.5)),
+ ),
+ ]
+ for chamfer, corners, expected in TEST_VECTORS:
+ r = ChamferRectangle((0, 0), 5, 5, chamfer, corners)
+ assert set(r.vertices) == set(expected)
+
+
+def test_round_rectangle_ctor():
+ """ Test round rectangle creation
+ """
+ test_cases = (
+ ((0, 0), 1, 1, 0.2, (True, True, False, False)),
+ ((0, 0), 1, 2, 0.3, (True, True, True, True)),
+ ((1, 1), 1, 2, 0.4, (False, False, False, False)),
+ )
+ for pos, width, height, radius, corners in test_cases:
+ r = RoundRectangle(pos, width, height, radius, corners)
+ assert r.position == pos
+ assert r.width == width
+ assert r.height == height
+ assert r.radius == radius
+ pytest.approx(r.corners, corners)
+
+
+def test_round_rectangle_bounds():
+ """ Test round rectangle bounding box calculation
+ """
+ r = RoundRectangle((0, 0), 2, 2, 0.2, (True, True, False, False))
+ xbounds, ybounds = r.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+ r = RoundRectangle((0, 0), 2, 2, 0.2, (True, True, False, False), rotation=45)
+ xbounds, ybounds = r.bounding_box
+ pytest.approx(xbounds, (-math.sqrt(2), math.sqrt(2)))
+ pytest.approx(ybounds, (-math.sqrt(2), math.sqrt(2)))
+
+
+def test_round_rectangle_conversion():
+ r = RoundRectangle(
+ (2.54, 25.4), 254.0, 2540.0, 0.254, (True, True, False, False), units="metric"
+ )
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.radius == 0.254
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.radius == 0.01
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.radius == 0.01
+
+ r = RoundRectangle(
+ (0.1, 1.0), 10.0, 100.0, 0.01, (True, True, False, False), units="inch"
+ )
+
+ r.to_inch()
+ assert r.position == (0.1, 1.0)
+ assert r.width == 10.0
+ assert r.height == 100.0
+ assert r.radius == 0.01
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.radius == 0.254
+
+ r.to_metric()
+ assert r.position == (2.54, 25.4)
+ assert r.width == 254.0
+ assert r.height == 2540.0
+ assert r.radius == 0.254
+
+
+def test_round_rectangle_offset():
+ r = RoundRectangle((0, 0), 1, 2, 0.01, (True, True, False, False))
+ r.offset(1, 0)
+ assert r.position == (1.0, 0.0)
+ r.offset(0, 1)
+ assert r.position == (1.0, 1.0)
+
+
+def test_obround_ctor():
+ """ Test obround creation
+ """
+ test_cases = (((0, 0), 1, 1), ((0, 0), 1, 2), ((1, 1), 1, 2))
+ for pos, width, height in test_cases:
+ o = Obround(pos, width, height)
+ assert o.position == pos
+ assert o.width == width
+ assert o.height == height
+
+
+def test_obround_bounds():
+ """ Test obround bounding box calculation
+ """
+ o = Obround((2, 2), 2, 4)
+ xbounds, ybounds = o.bounding_box
+ pytest.approx(xbounds, (1, 3))
+ pytest.approx(ybounds, (0, 4))
+ o = Obround((2, 2), 4, 2)
+ xbounds, ybounds = o.bounding_box
+ pytest.approx(xbounds, (0, 4))
+ pytest.approx(ybounds, (1, 3))
+
+
+def test_obround_orientation():
+ o = Obround((0, 0), 2, 1)
+ assert o.orientation == "horizontal"
+ o = Obround((0, 0), 1, 2)
+ assert o.orientation == "vertical"
+
+
+def test_obround_subshapes():
+ o = Obround((0, 0), 1, 4)
+ ss = o.subshapes
+ pytest.approx(ss["rectangle"].position, (0, 0))
+ pytest.approx(ss["circle1"].position, (0, 1.5))
+ pytest.approx(ss["circle2"].position, (0, -1.5))
+ o = Obround((0, 0), 4, 1)
+ ss = o.subshapes
+ pytest.approx(ss["rectangle"].position, (0, 0))
+ pytest.approx(ss["circle1"].position, (1.5, 0))
+ pytest.approx(ss["circle2"].position, (-1.5, 0))
+
+
+def test_obround_conversion():
+ o = Obround((2.54, 25.4), 254.0, 2540.0, units="metric")
+
+ # No effect
+ o.to_metric()
+ assert o.position == (2.54, 25.4)
+ assert o.width == 254.0
+ assert o.height == 2540.0
+
+ o.to_inch()
+ assert o.position == (0.1, 1.0)
+ assert o.width == 10.0
+ assert o.height == 100.0
+
+ # No effect
+ o.to_inch()
+ assert o.position == (0.1, 1.0)
+ assert o.width == 10.0
+ assert o.height == 100.0
+
+ o = Obround((0.1, 1.0), 10.0, 100.0, units="inch")
+
+ # No effect
+ o.to_inch()
+ assert o.position == (0.1, 1.0)
+ assert o.width == 10.0
+ assert o.height == 100.0
+
+ o.to_metric()
+ assert o.position == (2.54, 25.4)
+ assert o.width == 254.0
+ assert o.height == 2540.0
+
+ # No effect
+ o.to_metric()
+ assert o.position == (2.54, 25.4)
+ assert o.width == 254.0
+ assert o.height == 2540.0
+
+
+def test_obround_offset():
+ o = Obround((0, 0), 1, 2)
+ o.offset(1, 0)
+ assert o.position == (1.0, 0.0)
+ o.offset(0, 1)
+ assert o.position == (1.0, 1.0)
+
+
+def test_polygon_ctor():
+ """ Test polygon creation
+ """
+ test_cases = (((0, 0), 3, 5, 0), ((0, 0), 5, 6, 0), ((1, 1), 7, 7, 45))
+ for pos, sides, radius, hole_diameter in test_cases:
+ p = Polygon(pos, sides, radius, hole_diameter)
+ assert p.position == pos
+ assert p.sides == sides
+ assert p.radius == radius
+ assert p.hole_diameter == hole_diameter
+
+
+def test_polygon_bounds():
+ """ Test polygon bounding box calculation
+ """
+ p = Polygon((2, 2), 3, 2, 0)
+ xbounds, ybounds = p.bounding_box
+ pytest.approx(xbounds, (0, 4))
+ pytest.approx(ybounds, (0, 4))
+ p = Polygon((2, 2), 3, 4, 0)
+ xbounds, ybounds = p.bounding_box
+ pytest.approx(xbounds, (-2, 6))
+ pytest.approx(ybounds, (-2, 6))
+
+
+def test_polygon_conversion():
+ p = Polygon((2.54, 25.4), 3, 254.0, 0, units="metric")
+
+ # No effect
+ p.to_metric()
+ assert p.position == (2.54, 25.4)
+ assert p.radius == 254.0
+
+ p.to_inch()
+ assert p.position == (0.1, 1.0)
+ assert p.radius == 10.0
+
+ # No effect
+ p.to_inch()
+ assert p.position == (0.1, 1.0)
+ assert p.radius == 10.0
+
+ p = Polygon((0.1, 1.0), 3, 10.0, 0, units="inch")
+
+ # No effect
+ p.to_inch()
+ assert p.position == (0.1, 1.0)
+ assert p.radius == 10.0
+
+ p.to_metric()
+ assert p.position == (2.54, 25.4)
+ assert p.radius == 254.0
+
+ # No effect
+ p.to_metric()
+ assert p.position == (2.54, 25.4)
+ assert p.radius == 254.0
+
+
+def test_polygon_offset():
+ p = Polygon((0, 0), 5, 10, 0)
+ p.offset(1, 0)
+ assert p.position == (1.0, 0.0)
+ p.offset(0, 1)
+ assert p.position == (1.0, 1.0)
+
+
+def test_region_ctor():
+ """ Test Region creation
+ """
+ apt = Circle((0, 0), 0)
+ lines = (
+ Line((0, 0), (1, 0), apt),
+ Line((1, 0), (1, 1), apt),
+ Line((1, 1), (0, 1), apt),
+ Line((0, 1), (0, 0), apt),
+ )
+ points = ((0, 0), (1, 0), (1, 1), (0, 1))
+ r = Region(lines)
+ for i, p in enumerate(lines):
+ assert r.primitives[i] == p
+
+
+def test_region_bounds():
+ """ Test region bounding box calculation
+ """
+ apt = Circle((0, 0), 0)
+ lines = (
+ Line((0, 0), (1, 0), apt),
+ Line((1, 0), (1, 1), apt),
+ Line((1, 1), (0, 1), apt),
+ Line((0, 1), (0, 0), apt),
+ )
+ r = Region(lines)
+ xbounds, ybounds = r.bounding_box
+ pytest.approx(xbounds, (0, 1))
+ pytest.approx(ybounds, (0, 1))
+
+
+def test_region_offset():
+ apt = Circle((0, 0), 0)
+ lines = (
+ Line((0, 0), (1, 0), apt),
+ Line((1, 0), (1, 1), apt),
+ Line((1, 1), (0, 1), apt),
+ Line((0, 1), (0, 0), apt),
+ )
+ r = Region(lines)
+ xlim, ylim = r.bounding_box
+ r.offset(0, 1)
+ new_xlim, new_ylim = r.bounding_box
+ pytest.approx(new_xlim, xlim)
+ pytest.approx(new_ylim, tuple([y + 1 for y in ylim]))
+
+
+def test_round_butterfly_ctor():
+ """ Test round butterfly creation
+ """
+ test_cases = (((0, 0), 3), ((0, 0), 5), ((1, 1), 7))
+ for pos, diameter in test_cases:
+ b = RoundButterfly(pos, diameter)
+ assert b.position == pos
+ assert b.diameter == diameter
+ assert b.radius == diameter / 2.0
+
+
+def test_round_butterfly_ctor_validation():
+ """ Test RoundButterfly argument validation
+ """
+ pytest.raises(TypeError, RoundButterfly, 3, 5)
+ pytest.raises(TypeError, RoundButterfly, (3, 4, 5), 5)
+
+
+def test_round_butterfly_conversion():
+ b = RoundButterfly((2.54, 25.4), 254.0, units="metric")
+
+ # No Effect
+ b.to_metric()
+ assert b.position == (2.54, 25.4)
+ assert b.diameter == (254.0)
+
+ b.to_inch()
+ assert b.position == (0.1, 1.0)
+ assert b.diameter == 10.0
+
+ # No effect
+ b.to_inch()
+ assert b.position == (0.1, 1.0)
+ assert b.diameter == 10.0
+
+ b = RoundButterfly((0.1, 1.0), 10.0, units="inch")
+
+ # No effect
+ b.to_inch()
+ assert b.position == (0.1, 1.0)
+ assert b.diameter == 10.0
+
+ b.to_metric()
+ assert b.position == (2.54, 25.4)
+ assert b.diameter == (254.0)
+
+ # No Effect
+ b.to_metric()
+ assert b.position == (2.54, 25.4)
+ assert b.diameter == (254.0)
+
+
+def test_round_butterfly_offset():
+ b = RoundButterfly((0, 0), 1)
+ b.offset(1, 0)
+ assert b.position == (1.0, 0.0)
+ b.offset(0, 1)
+ assert b.position == (1.0, 1.0)
+
+
+def test_round_butterfly_bounds():
+ """ Test RoundButterfly bounding box calculation
+ """
+ b = RoundButterfly((0, 0), 2)
+ xbounds, ybounds = b.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+
+
+def test_square_butterfly_ctor():
+ """ Test SquareButterfly creation
+ """
+ test_cases = (((0, 0), 3), ((0, 0), 5), ((1, 1), 7))
+ for pos, side in test_cases:
+ b = SquareButterfly(pos, side)
+ assert b.position == pos
+ assert b.side == side
+
+
+def test_square_butterfly_ctor_validation():
+ """ Test SquareButterfly argument validation
+ """
+ pytest.raises(TypeError, SquareButterfly, 3, 5)
+ pytest.raises(TypeError, SquareButterfly, (3, 4, 5), 5)
+
+
+def test_square_butterfly_bounds():
+ """ Test SquareButterfly bounding box calculation
+ """
+ b = SquareButterfly((0, 0), 2)
+ xbounds, ybounds = b.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+
+
+def test_squarebutterfly_conversion():
+ b = SquareButterfly((2.54, 25.4), 254.0, units="metric")
+
+ # No effect
+ b.to_metric()
+ assert b.position == (2.54, 25.4)
+ assert b.side == (254.0)
+
+ b.to_inch()
+ assert b.position == (0.1, 1.0)
+ assert b.side == 10.0
+
+ # No effect
+ b.to_inch()
+ assert b.position == (0.1, 1.0)
+ assert b.side == 10.0
+
+ b = SquareButterfly((0.1, 1.0), 10.0, units="inch")
+
+ # No effect
+ b.to_inch()
+ assert b.position == (0.1, 1.0)
+ assert b.side == 10.0
+
+ b.to_metric()
+ assert b.position == (2.54, 25.4)
+ assert b.side == (254.0)
+
+ # No effect
+ b.to_metric()
+ assert b.position == (2.54, 25.4)
+ assert b.side == (254.0)
+
+
+def test_square_butterfly_offset():
+ b = SquareButterfly((0, 0), 1)
+ b.offset(1, 0)
+ assert b.position == (1.0, 0.0)
+ b.offset(0, 1)
+ assert b.position == (1.0, 1.0)
+
+
+def test_donut_ctor():
+ """ Test Donut primitive creation
+ """
+ test_cases = (
+ ((0, 0), "round", 3, 5),
+ ((0, 0), "square", 5, 7),
+ ((1, 1), "hexagon", 7, 9),
+ ((2, 2), "octagon", 9, 11),
+ )
+ for pos, shape, in_d, out_d in test_cases:
+ d = Donut(pos, shape, in_d, out_d)
+ assert d.position == pos
+ assert d.shape == shape
+ assert d.inner_diameter == in_d
+ assert d.outer_diameter == out_d
+
+
+def test_donut_ctor_validation():
+ pytest.raises(TypeError, Donut, 3, "round", 5, 7)
+ pytest.raises(TypeError, Donut, (3, 4, 5), "round", 5, 7)
+ pytest.raises(ValueError, Donut, (0, 0), "triangle", 3, 5)
+ pytest.raises(ValueError, Donut, (0, 0), "round", 5, 3)
+
+
+def test_donut_bounds():
+ d = Donut((0, 0), "round", 0.0, 2.0)
+ xbounds, ybounds = d.bounding_box
+ assert xbounds == (-1.0, 1.0)
+ assert ybounds == (-1.0, 1.0)
+
+
+def test_donut_conversion():
+ d = Donut((2.54, 25.4), "round", 254.0, 2540.0, units="metric")
+
+ # No effect
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.inner_diameter == 254.0
+ assert d.outer_diameter == 2540.0
+
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.inner_diameter == 10.0
+ assert d.outer_diameter == 100.0
+
+ # No effect
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.inner_diameter == 10.0
+ assert d.outer_diameter == 100.0
+
+ d = Donut((0.1, 1.0), "round", 10.0, 100.0, units="inch")
+
+ # No effect
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.inner_diameter == 10.0
+ assert d.outer_diameter == 100.0
+
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.inner_diameter == 254.0
+ assert d.outer_diameter == 2540.0
+
+ # No effect
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.inner_diameter == 254.0
+ assert d.outer_diameter == 2540.0
+
+
+def test_donut_offset():
+ d = Donut((0, 0), "round", 1, 10)
+ d.offset(1, 0)
+ assert d.position == (1.0, 0.0)
+ d.offset(0, 1)
+ assert d.position == (1.0, 1.0)
+
+
+def test_drill_ctor():
+ """ Test drill primitive creation
+ """
+ test_cases = (((0, 0), 2), ((1, 1), 3), ((2, 2), 5))
+ for position, diameter in test_cases:
+ d = Drill(position, diameter)
+ assert d.position == position
+ assert d.diameter == diameter
+ assert d.radius == diameter / 2.0
+
+
+def test_drill_ctor_validation():
+ """ Test drill argument validation
+ """
+ pytest.raises(TypeError, Drill, 3, 5)
+ pytest.raises(TypeError, Drill, (3, 4, 5), 5)
+
+
+def test_drill_bounds():
+ d = Drill((0, 0), 2)
+ xbounds, ybounds = d.bounding_box
+ pytest.approx(xbounds, (-1, 1))
+ pytest.approx(ybounds, (-1, 1))
+ d = Drill((1, 2), 2)
+ xbounds, ybounds = d.bounding_box
+ pytest.approx(xbounds, (0, 2))
+ pytest.approx(ybounds, (1, 3))
+
+
+def test_drill_conversion():
+ d = Drill((2.54, 25.4), 254.0, units="metric")
+
+ # No effect
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.diameter == 254.0
+
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.diameter == 10.0
+
+ # No effect
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.diameter == 10.0
+
+ d = Drill((0.1, 1.0), 10.0, units="inch")
+
+ # No effect
+ d.to_inch()
+ assert d.position == (0.1, 1.0)
+ assert d.diameter == 10.0
+
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.diameter == 254.0
+
+ # No effect
+ d.to_metric()
+ assert d.position == (2.54, 25.4)
+ assert d.diameter == 254.0
+
+
+def test_drill_offset():
+ d = Drill((0, 0), 1.0)
+ d.offset(1, 0)
+ assert d.position == (1.0, 0.0)
+ d.offset(0, 1)
+ assert d.position == (1.0, 1.0)
+
+
+def test_drill_equality():
+ d = Drill((2.54, 25.4), 254.0)
+ d1 = Drill((2.54, 25.4), 254.0)
+ assert d == d1
+ d1 = Drill((2.54, 25.4), 254.2)
+ assert d != d1
+
+
+def test_slot_bounds():
+ """ Test Slot primitive bounding box calculation
+ """
+ cases = [
+ ((0, 0), (1, 1), ((-1, 2), (-1, 2))),
+ ((-1, -1), (1, 1), ((-2, 2), (-2, 2))),
+ ((1, 1), (-1, -1), ((-2, 2), (-2, 2))),
+ ((-1, 1), (1, -1), ((-2, 2), (-2, 2))),
+ ]
+
+ for start, end, expected in cases:
+ s = Slot(start, end, 2.0)
+ assert s.bounding_box == expected
diff --git a/gerber/tests/test_rs274x.py b/gerber/tests/test_rs274x.py
new file mode 100644
index 0000000..e7baf11
--- /dev/null
+++ b/gerber/tests/test_rs274x.py
@@ -0,0 +1,55 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+import os
+import pytest
+
+from ..rs274x import read, GerberFile
+
+
+TOP_COPPER_FILE = os.path.join(os.path.dirname(__file__), "resources/top_copper.GTL")
+
+MULTILINE_READ_FILE = os.path.join(
+ os.path.dirname(__file__), "resources/multiline_read.ger"
+)
+
+
+def test_read():
+ top_copper = read(TOP_COPPER_FILE)
+ assert isinstance(top_copper, GerberFile)
+
+
+def test_multiline_read():
+ multiline = read(MULTILINE_READ_FILE)
+ assert isinstance(multiline, GerberFile)
+ assert 10 == len(multiline.statements)
+
+
+def test_comments_parameter():
+ top_copper = read(TOP_COPPER_FILE)
+ assert top_copper.comments[0] == "This is a comment,:"
+
+
+def test_size_parameter():
+ top_copper = read(TOP_COPPER_FILE)
+ size = top_copper.size
+ pytest.approx(size[0], 2.256900, 6)
+ pytest.approx(size[1], 1.500000, 6)
+
+
+def test_conversion():
+ top_copper = read(TOP_COPPER_FILE)
+ assert top_copper.units == "inch"
+ top_copper_inch = read(TOP_COPPER_FILE)
+ top_copper.to_metric()
+ for statement in top_copper_inch.statements:
+ statement.to_metric()
+ for primitive in top_copper_inch.primitives:
+ primitive.to_metric()
+ assert top_copper.units == "metric"
+ for i, m in zip(top_copper.statements, top_copper_inch.statements):
+ assert i == m
+
+ for i, m in zip(top_copper.primitives, top_copper_inch.primitives):
+ assert i == m
diff --git a/gerber/tests/test_rs274x_backend.py b/gerber/tests/test_rs274x_backend.py
new file mode 100644
index 0000000..13347c5
--- /dev/null
+++ b/gerber/tests/test_rs274x_backend.py
@@ -0,0 +1,232 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Garret Fick <garret@ficksworkshop.com>
+
+import os
+
+from ..render.rs274x_backend import Rs274xContext
+from ..rs274x import read
+
+
+def test_render_two_boxes():
+ """Umaco exapmle of two boxes"""
+ _test_render(
+ "resources/example_two_square_boxes.gbr", "golden/example_two_square_boxes.gbr"
+ )
+
+
+def _test_render_single_quadrant():
+ """Umaco exapmle of a single quadrant arc"""
+
+ # TODO there is probably a bug here
+ _test_render(
+ "resources/example_single_quadrant.gbr", "golden/example_single_quadrant.gbr"
+ )
+
+
+def _test_render_simple_contour():
+ """Umaco exapmle of a simple arrow-shaped contour"""
+ _test_render(
+ "resources/example_simple_contour.gbr", "golden/example_simple_contour.gbr"
+ )
+
+
+def _test_render_single_contour_1():
+ """Umaco example of a single contour
+
+ The resulting image for this test is used by other tests because they must generate the same output."""
+ _test_render(
+ "resources/example_single_contour_1.gbr", "golden/example_single_contour.gbr"
+ )
+
+
+def _test_render_single_contour_2():
+ """Umaco exapmle of a single contour, alternate contour end order
+
+ The resulting image for this test is used by other tests because they must generate the same output."""
+ _test_render(
+ "resources/example_single_contour_2.gbr", "golden/example_single_contour.gbr"
+ )
+
+
+def _test_render_single_contour_3():
+ """Umaco exapmle of a single contour with extra line"""
+ _test_render(
+ "resources/example_single_contour_3.gbr", "golden/example_single_contour_3.gbr"
+ )
+
+
+def _test_render_not_overlapping_contour():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_not_overlapping_contour.gbr",
+ "golden/example_not_overlapping_contour.gbr",
+ )
+
+
+def _test_render_not_overlapping_touching():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_not_overlapping_touching.gbr",
+ "golden/example_not_overlapping_touching.gbr",
+ )
+
+
+def _test_render_overlapping_touching():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_overlapping_touching.gbr",
+ "golden/example_overlapping_touching.gbr",
+ )
+
+
+def _test_render_overlapping_contour():
+ """Umaco example of D02 staring a second contour"""
+ _test_render(
+ "resources/example_overlapping_contour.gbr",
+ "golden/example_overlapping_contour.gbr",
+ )
+
+
+def _DISABLED_test_render_level_holes():
+ """Umaco example of using multiple levels to create multiple holes"""
+
+ # TODO This is clearly rendering wrong. I'm temporarily checking this in because there are more
+ # rendering fixes in the related repository that may resolve these.
+ _test_render(
+ "resources/example_level_holes.gbr", "golden/example_overlapping_contour.gbr"
+ )
+
+
+def _DISABLED_test_render_cutin():
+ """Umaco example of using a cutin"""
+
+ # TODO This is clearly rendering wrong.
+ _test_render("resources/example_cutin.gbr", "golden/example_cutin.gbr")
+
+
+def _test_render_fully_coincident():
+ """Umaco example of coincident lines rendering two contours"""
+
+ _test_render(
+ "resources/example_fully_coincident.gbr", "golden/example_fully_coincident.gbr"
+ )
+
+
+def _test_render_coincident_hole():
+ """Umaco example of coincident lines rendering a hole in the contour"""
+
+ _test_render(
+ "resources/example_coincident_hole.gbr", "golden/example_coincident_hole.gbr"
+ )
+
+
+def _test_render_cutin_multiple():
+ """Umaco example of a region with multiple cutins"""
+
+ _test_render(
+ "resources/example_cutin_multiple.gbr", "golden/example_cutin_multiple.gbr"
+ )
+
+
+def _test_flash_circle():
+ """Umaco example a simple circular flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_circle.gbr", "golden/example_flash_circle.gbr"
+ )
+
+
+def _test_flash_rectangle():
+ """Umaco example a simple rectangular flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_rectangle.gbr", "golden/example_flash_rectangle.gbr"
+ )
+
+
+def _test_flash_obround():
+ """Umaco example a simple obround flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_obround.gbr", "golden/example_flash_obround.gbr"
+ )
+
+
+def _test_flash_polygon():
+ """Umaco example a simple polygon flash with and without a hole"""
+
+ _test_render(
+ "resources/example_flash_polygon.gbr", "golden/example_flash_polygon.gbr"
+ )
+
+
+def _test_holes_dont_clear():
+ """Umaco example that an aperture with a hole does not clear the area"""
+
+ _test_render(
+ "resources/example_holes_dont_clear.gbr", "golden/example_holes_dont_clear.gbr"
+ )
+
+
+def _test_render_am_exposure_modifier():
+ """Umaco example that an aperture macro with a hole does not clear the area"""
+
+ _test_render(
+ "resources/example_am_exposure_modifier.gbr",
+ "golden/example_am_exposure_modifier.gbr",
+ )
+
+
+def _resolve_path(path):
+ return os.path.join(os.path.dirname(__file__), path)
+
+
+def _test_render(gerber_path, png_expected_path, create_output_path=None):
+ """Render the gerber file and compare to the expected PNG output.
+
+ Parameters
+ ----------
+ gerber_path : string
+ Path to Gerber file to open
+ png_expected_path : string
+ Path to the PNG file to compare to
+ create_output : string|None
+ If not None, write the generated PNG to the specified path.
+ This is primarily to help with
+ """
+
+ gerber_path = _resolve_path(gerber_path)
+ png_expected_path = _resolve_path(png_expected_path)
+ if create_output_path:
+ create_output_path = _resolve_path(create_output_path)
+
+ gerber = read(gerber_path)
+
+ # Create GBR output from the input file
+ ctx = Rs274xContext(gerber.settings)
+ gerber.render(ctx)
+
+ actual_contents = ctx.dump()
+
+ # If we want to write the file bytes, do it now. This happens
+ if create_output_path:
+ with open(create_output_path, "wb") as out_file:
+ out_file.write(actual_contents.getvalue())
+ # Creating the output is dangerous - it could overwrite the expected result.
+ # So if we are creating the output, we make the test fail on purpose so you
+ # won't forget to disable this
+ assert not True, (
+ "Test created the output %s. This needs to be disabled to make sure the test behaves correctly"
+ % (create_output_path,)
+ )
+
+ # Read the expected PNG file
+
+ with open(png_expected_path, "r") as expected_file:
+ expected_contents = expected_file.read()
+
+ assert expected_contents == actual_contents.getvalue()
+
+ return gerber
diff --git a/gerber/tests/test_utils.py b/gerber/tests/test_utils.py
new file mode 100644
index 0000000..68484d1
--- /dev/null
+++ b/gerber/tests/test_utils.py
@@ -0,0 +1,167 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+import pytest
+from ..utils import *
+
+
+def test_zero_suppression():
+ """ Test gerber value parser and writer handle zero suppression correctly.
+ """
+ # Default format
+ fmt = (2, 5)
+
+ # Test leading zero suppression
+ zero_suppression = "leading"
+ test_cases = [
+ ("1", 0.00001),
+ ("10", 0.0001),
+ ("100", 0.001),
+ ("1000", 0.01),
+ ("10000", 0.1),
+ ("100000", 1.0),
+ ("1000000", 10.0),
+ ("-1", -0.00001),
+ ("-10", -0.0001),
+ ("-100", -0.001),
+ ("-1000", -0.01),
+ ("-10000", -0.1),
+ ("-100000", -1.0),
+ ("-1000000", -10.0),
+ ("0", 0.0),
+ ]
+ for string, value in test_cases:
+ assert value == parse_gerber_value(string, fmt, zero_suppression)
+ assert string == write_gerber_value(value, fmt, zero_suppression)
+
+ # Test trailing zero suppression
+ zero_suppression = "trailing"
+ test_cases = [
+ ("1", 10.0),
+ ("01", 1.0),
+ ("001", 0.1),
+ ("0001", 0.01),
+ ("00001", 0.001),
+ ("000001", 0.0001),
+ ("0000001", 0.00001),
+ ("-1", -10.0),
+ ("-01", -1.0),
+ ("-001", -0.1),
+ ("-0001", -0.01),
+ ("-00001", -0.001),
+ ("-000001", -0.0001),
+ ("-0000001", -0.00001),
+ ("0", 0.0),
+ ]
+ for string, value in test_cases:
+ assert value == parse_gerber_value(string, fmt, zero_suppression)
+ assert string == write_gerber_value(value, fmt, zero_suppression)
+
+ assert write_gerber_value(0.000000001, fmt, "leading") == "0"
+ assert write_gerber_value(0.000000001, fmt, "trailing") == "0"
+
+
+def test_format():
+ """ Test gerber value parser and writer handle format correctly
+ """
+ zero_suppression = "leading"
+ test_cases = [
+ ((2, 7), "1", 0.0000001),
+ ((2, 6), "1", 0.000001),
+ ((2, 5), "1", 0.00001),
+ ((2, 4), "1", 0.0001),
+ ((2, 3), "1", 0.001),
+ ((2, 2), "1", 0.01),
+ ((2, 1), "1", 0.1),
+ ((2, 7), "-1", -0.0000001),
+ ((2, 6), "-1", -0.000001),
+ ((2, 5), "-1", -0.00001),
+ ((2, 4), "-1", -0.0001),
+ ((2, 3), "-1", -0.001),
+ ((2, 2), "-1", -0.01),
+ ((2, 1), "-1", -0.1),
+ ((2, 6), "0", 0),
+ ]
+ for fmt, string, value in test_cases:
+ assert value == parse_gerber_value(string, fmt, zero_suppression)
+ assert string == write_gerber_value(value, fmt, zero_suppression)
+
+ zero_suppression = "trailing"
+ test_cases = [
+ ((6, 5), "1", 100000.0),
+ ((5, 5), "1", 10000.0),
+ ((4, 5), "1", 1000.0),
+ ((3, 5), "1", 100.0),
+ ((2, 5), "1", 10.0),
+ ((1, 5), "1", 1.0),
+ ((6, 5), "-1", -100000.0),
+ ((5, 5), "-1", -10000.0),
+ ((4, 5), "-1", -1000.0),
+ ((3, 5), "-1", -100.0),
+ ((2, 5), "-1", -10.0),
+ ((1, 5), "-1", -1.0),
+ ((2, 5), "0", 0),
+ ]
+ for fmt, string, value in test_cases:
+ assert value == parse_gerber_value(string, fmt, zero_suppression)
+ assert string == write_gerber_value(value, fmt, zero_suppression)
+
+
+def test_decimal_truncation():
+ """ Test decimal_string truncates value to the correct precision
+ """
+ value = 1.123456789
+ for x in range(10):
+ result = decimal_string(value, precision=x)
+ calculated = "1." + "".join(str(y) for y in range(1, x + 1))
+ assert result == calculated
+
+
+def test_decimal_padding():
+ """ Test decimal_string padding
+ """
+ value = 1.123
+ assert decimal_string(value, precision=3, padding=True) == "1.123"
+ assert decimal_string(value, precision=4, padding=True) == "1.1230"
+ assert decimal_string(value, precision=5, padding=True) == "1.12300"
+ assert decimal_string(value, precision=6, padding=True) == "1.123000"
+ assert decimal_string(0, precision=6, padding=True) == "0.000000"
+
+
+def test_parse_format_validation():
+ """ Test parse_gerber_value() format validation
+ """
+ pytest.raises(ValueError, parse_gerber_value, "00001111", (7, 5))
+ pytest.raises(ValueError, parse_gerber_value, "00001111", (5, 8))
+ pytest.raises(ValueError, parse_gerber_value, "00001111", (13, 1))
+
+
+def test_write_format_validation():
+ """ Test write_gerber_value() format validation
+ """
+ pytest.raises(ValueError, write_gerber_value, 69.0, (7, 5))
+ pytest.raises(ValueError, write_gerber_value, 69.0, (5, 8))
+ pytest.raises(ValueError, write_gerber_value, 69.0, (13, 1))
+
+
+def test_detect_format_with_short_file():
+ """ Verify file format detection works with short files
+ """
+ assert "unknown" == detect_file_format("gerber/tests/__init__.py")
+
+
+def test_validate_coordinates():
+ pytest.raises(TypeError, validate_coordinates, 3)
+ pytest.raises(TypeError, validate_coordinates, 3.1)
+ pytest.raises(TypeError, validate_coordinates, "14")
+ pytest.raises(TypeError, validate_coordinates, (0,))
+ pytest.raises(TypeError, validate_coordinates, (0, 1, 2))
+ pytest.raises(TypeError, validate_coordinates, (0, "string"))
+
+
+def test_convex_hull():
+ points = [(0, 0), (1, 0), (1, 1), (0.5, 0.5), (0, 1), (0, 0)]
+ expected = [(0, 0), (1, 0), (1, 1), (0, 1), (0, 0)]
+ assert set(convex_hull(points)) == set(expected)
diff --git a/gerber/utils.py b/gerber/utils.py
new file mode 100644
index 0000000..3d39df9
--- /dev/null
+++ b/gerber/utils.py
@@ -0,0 +1,458 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+gerber.utils
+============
+**Gerber and Excellon file handling utilities**
+
+This module provides utility functions for working with Gerber and Excellon
+files.
+"""
+
+import os
+from math import radians, sin, cos, sqrt, atan2, pi
+
+MILLIMETERS_PER_INCH = 25.4
+
+
+def parse_gerber_value(value, format=(2, 5), zero_suppression='trailing'):
+ """ Convert gerber/excellon formatted string to floating-point number
+
+ .. note::
+ Format and zero suppression are configurable. Note that the Excellon
+ and Gerber formats use opposite terminology with respect to leading
+ and trailing zeros. The Gerber format specifies which zeros are
+ suppressed, while the Excellon format specifies which zeros are
+ included. This function uses the Gerber-file convention, so an
+ Excellon file in LZ (leading zeros) mode would use
+ `zero_suppression='trailing'`
+
+
+ Parameters
+ ----------
+ value : string
+ A Gerber/Excellon-formatted string representing a numerical value.
+
+ format : tuple (int,int)
+ Gerber/Excellon precision format expressed as a tuple containing:
+ (number of integer-part digits, number of decimal-part digits)
+
+ zero_suppression : string
+ Zero-suppression mode. May be 'leading', 'trailing' or 'none'
+
+ Returns
+ -------
+ value : float
+ The specified value as a floating-point number.
+
+ """
+ # Handle excellon edge case with explicit decimal. "That was easy!"
+ if '.' in value:
+ return float(value)
+
+ # Format precision
+ integer_digits, decimal_digits = format
+ MAX_DIGITS = integer_digits + decimal_digits
+
+ # Absolute maximum number of digits supported. This will handle up to
+ # 6:7 format, which is somewhat supported, even though the gerber spec
+ # only allows up to 6:6
+ if MAX_DIGITS > 13 or integer_digits > 6 or decimal_digits > 7:
+ raise ValueError('Parser only supports precision up to 6:7 format')
+
+ # Remove extraneous information
+ value = value.lstrip('+')
+ negative = '-' in value
+ if negative:
+ value = value.lstrip('-')
+
+ missing_digits = MAX_DIGITS - len(value)
+
+ if zero_suppression == 'trailing':
+ digits = list(value + ('0' * missing_digits))
+ elif zero_suppression == 'leading':
+ digits = list(('0' * missing_digits) + value)
+ else:
+ digits = list(value)
+
+ result = float(
+ ''.join(digits[:integer_digits] + ['.'] + digits[integer_digits:]))
+ return -result if negative else result
+
+
+def write_gerber_value(value, format=(2, 5), zero_suppression='trailing'):
+ """ Convert a floating point number to a Gerber/Excellon-formatted string.
+
+ .. note::
+ Format and zero suppression are configurable. Note that the Excellon
+ and Gerber formats use opposite terminology with respect to leading
+ and trailing zeros. The Gerber format specifies which zeros are
+ suppressed, while the Excellon format specifies which zeros are
+ included. This function uses the Gerber-file convention, so an
+ Excellon file in LZ (leading zeros) mode would use
+ `zero_suppression='trailing'`
+
+ Parameters
+ ----------
+ value : float
+ A floating point value.
+
+ format : tuple (n=2)
+ Gerber/Excellon precision format expressed as a tuple containing:
+ (number of integer-part digits, number of decimal-part digits)
+
+ zero_suppression : string
+ Zero-suppression mode. May be 'leading', 'trailing' or 'none'
+
+ Returns
+ -------
+ value : string
+ The specified value as a Gerber/Excellon-formatted string.
+ """
+
+ if format[0] == float:
+ return "%f" %value
+
+ # Format precision
+ integer_digits, decimal_digits = format
+ MAX_DIGITS = integer_digits + decimal_digits
+
+ if MAX_DIGITS > 13 or integer_digits > 6 or decimal_digits > 7:
+ raise ValueError('Parser only supports precision up to 6:7 format')
+
+ # Edge case... (per Gerber spec we should return 0 in all cases, see page
+ # 77)
+ if value == 0:
+ return '0'
+
+ # negative sign affects padding, so deal with it at the end...
+ negative = value < 0.0
+ if negative:
+ value = -1.0 * value
+
+ # Format string for padding out in both directions
+ fmtstring = '%%0%d.0%df' % (MAX_DIGITS + 1, decimal_digits)
+ digits = [val for val in fmtstring % value if val != '.']
+
+ # If all the digits are 0, return '0'.
+ digit_sum = sum([int(digit) for digit in digits])
+ if digit_sum == 0:
+ return '0'
+
+ # Suppression...
+ if zero_suppression == 'trailing':
+ while digits and digits[-1] == '0':
+ digits.pop()
+ elif zero_suppression == 'leading':
+ while digits and digits[0] == '0':
+ digits.pop(0)
+
+ if not digits:
+ return '0'
+
+ return ''.join(digits) if not negative else ''.join(['-'] + digits)
+
+
+def decimal_string(value, precision=6, padding=False):
+ """ Convert float to string with limited precision
+
+ Parameters
+ ----------
+ value : float
+ A floating point value.
+
+ precision :
+ Maximum number of decimal places to print
+
+ Returns
+ -------
+ value : string
+ The specified value as a string.
+
+ """
+ floatstr = '%0.10g' % value
+ integer = None
+ decimal = None
+ if '.' in floatstr:
+ integer, decimal = floatstr.split('.')
+ elif ',' in floatstr:
+ integer, decimal = floatstr.split(',')
+ else:
+ integer, decimal = floatstr, "0"
+
+ if len(decimal) > precision:
+ decimal = decimal[:precision]
+ elif padding:
+ decimal = decimal + (precision - len(decimal)) * '0'
+
+ if integer or decimal:
+ return ''.join([integer, '.', decimal])
+ else:
+ return int(floatstr)
+
+
+def detect_file_format(data):
+ """ Determine format of a file
+
+ Parameters
+ ----------
+ data : string
+ string containing file data.
+
+ Returns
+ -------
+ format : string
+ File format. 'excellon' or 'rs274x' or 'unknown'
+ """
+ lines = data.split('\n')
+ for line in lines:
+ if 'M48' in line:
+ return 'excellon'
+ elif '%FS' in line:
+ return 'rs274x'
+ elif ((len(line.split()) >= 2) and
+ (line.split()[0] == 'P') and (line.split()[1] == 'JOB')):
+ return 'ipc_d_356'
+ return 'unknown'
+
+
+def validate_coordinates(position):
+ if position is not None:
+ if len(position) != 2:
+ raise TypeError('Position must be a tuple (n=2) of coordinates')
+ else:
+ for coord in position:
+ if not (isinstance(coord, int) or isinstance(coord, float)):
+ raise TypeError('Coordinates must be integers or floats')
+
+
+def metric(value):
+ """ Convert inch value to millimeters
+
+ Parameters
+ ----------
+ value : float
+ A value in inches.
+
+ Returns
+ -------
+ value : float
+ The equivalent value expressed in millimeters.
+ """
+ return value * MILLIMETERS_PER_INCH
+
+
+def inch(value):
+ """ Convert millimeter value to inches
+
+ Parameters
+ ----------
+ value : float
+ A value in millimeters.
+
+ Returns
+ -------
+ value : float
+ The equivalent value expressed in inches.
+ """
+ return value / MILLIMETERS_PER_INCH
+
+
+def rotate_point(point, angle, center=(0.0, 0.0)):
+ """ Rotate a point about another point.
+
+ Parameters
+ -----------
+ point : tuple(<float>, <float>)
+ Point to rotate about origin or center point
+
+ angle : float
+ Angle to rotate the point [degrees]
+
+ center : tuple(<float>, <float>)
+ Coordinates about which the point is rotated. Defaults to the origin.
+
+ Returns
+ -------
+ rotated_point : tuple(<float>, <float>)
+ `point` rotated about `center` by `angle` degrees.
+ """
+ angle = radians(angle)
+
+ cos_angle = cos(angle)
+ sin_angle = sin(angle)
+
+ return (
+ cos_angle * (point[0] - center[0]) - sin_angle * (point[1] - center[1]) + center[0],
+ sin_angle * (point[0] - center[0]) + cos_angle * (point[1] - center[1]) + center[1])
+
+def nearly_equal(point1, point2, ndigits = 6):
+ '''Are the points nearly equal'''
+
+ return round(point1[0] - point2[0], ndigits) == 0 and round(point1[1] - point2[1], ndigits) == 0
+
+
+def sq_distance(point1, point2):
+
+ diff1 = point1[0] - point2[0]
+ diff2 = point1[1] - point2[1]
+ return diff1 * diff1 + diff2 * diff2
+
+
+def listdir(directory, ignore_hidden=True, ignore_os=True):
+ """ List files in given directory.
+ Differs from os.listdir() in that hidden and OS-generated files are ignored
+ by default.
+
+ Parameters
+ ----------
+ directory : str
+ path to the directory for which to list files.
+
+ ignore_hidden : bool
+ If True, ignore files beginning with a leading '.'
+
+ ignore_os : bool
+ If True, ignore OS-generated files, e.g. Thumbs.db
+
+ Returns
+ -------
+ files : list
+ list of files in specified directory
+ """
+ os_files = ('.DS_Store', 'Thumbs.db', 'ethumbs.db')
+ files = os.listdir(directory)
+ if ignore_hidden:
+ files = [f for f in files if not f.startswith('.')]
+ if ignore_os:
+ files = [f for f in files if not f in os_files]
+ return files
+
+def ConvexHull_qh(points):
+ #a hull must be a planar shape with nonzero area, so there must be at least 3 points
+ if(len(points)<3):
+ raise Exception("not a planar shape")
+ #find points with lowest and highest X coordinates
+ minxp=0;
+ maxxp=0;
+ for i in range(len(points)):
+ if(points[i][0]<points[minxp][0]):
+ minxp=i;
+ if(points[i][0]>points[maxxp][0]):
+ maxxp=i;
+ if minxp==maxxp:
+ #all points are collinear
+ raise Exception("not a planar shape")
+ #separate points into those above and those below the minxp-maxxp line
+ lpoints=[]
+ rpoints=[]
+ #to detemine if point X is on the left or right of dividing line A-B, compare slope of A-B to slope of A-X
+ #slope is (By-Ay)/(Bx-Ax)
+ a=points[minxp]
+ b=points[maxxp]
+ slopeab=atan2(b[1]-a[1],b[0]-a[0])
+ for i in range(len(points)):
+ p=points[i]
+ if i == minxp or i == maxxp:
+ continue
+ slopep=atan2(p[1]-a[1],p[0]-a[0])
+ sdiff=slopep-slopeab
+ if(sdiff<pi):sdiff+=2*pi
+ if(sdiff>pi):sdiff-=2*pi
+ if(sdiff>0):
+ lpoints+=[i]
+ if(sdiff<0):
+ rpoints+=[i]
+ hull=[minxp]+_findhull(rpoints, maxxp, minxp, points)+[maxxp]+_findhull(lpoints, minxp, maxxp, points)
+ hullo=_optimize(hull,points)
+ return hullo
+
+def _optimize(hull,points):
+ #find triplets that are collinear and remove middle point
+ toremove=[]
+ newhull=hull[:]
+ l=len(hull)
+ for i in range(l):
+ p1=hull[i]
+ p2=hull[(i+1)%l]
+ p3=hull[(i+2)%l]
+ #(p1.y-p2.y)*(p1.x-p3.x)==(p1.y-p3.y)*(p1.x-p2.x)
+ if (points[p1][1]-points[p2][1])*(points[p1][0]-points[p3][0])==(points[p1][1]-points[p3][1])*(points[p1][0]-points[p2][0]):
+ toremove+=[p2]
+ for i in toremove:
+ newhull.remove(i)
+ return newhull
+
+def _distance(a, b, x):
+ #find the distance between point x and line a-b
+ return abs((b[1]-a[1])*x[0]-(b[0]-a[0])*x[1]+b[0]*a[1]-a[0]*b[1])/sqrt((b[1]-a[1])**2 + (b[0]-a[0])**2 );
+
+def _findhull(idxp, a_i, b_i, points):
+ #if no points in input, return no points in output
+ if(len(idxp)==0):
+ return [];
+ #find point c furthest away from line a-b
+ farpoint=-1
+ fdist=-1.0;
+ for i in idxp:
+ d=_distance(points[a_i], points[b_i], points[i])
+ if(d>fdist):
+ fdist=d;
+ farpoint=i
+ if(fdist<=0):
+ #none of the points have a positive distance from line, bad things have happened
+ return []
+ #separate points into those inside triangle, those outside triangle left of far point, and those outside triangle right of far point
+ a=points[a_i]
+ b=points[b_i]
+ c=points[farpoint]
+ slopeac=atan2(c[1]-a[1],c[0]-a[0])
+ slopecb=atan2(b[1]-c[1],b[0]-c[0])
+ lpoints=[]
+ rpoints=[]
+ for i in idxp:
+ if i==farpoint:
+ #ignore triangle vertex
+ continue
+ x=points[i]
+ #if point x is left of line a-c it's in left set
+ slopeax=atan2(x[1]-a[1],x[0]-a[0])
+ if slopeac==slopeax:
+ continue
+ sdiff=slopeac-slopeax
+ if(sdiff<-pi):sdiff+=2*pi
+ if(sdiff>pi):sdiff-=2*pi
+ if(sdiff<0):
+ lpoints+=[i]
+ else:
+ #if point x is right of line b-c it's in right set, otherwise it's inside triangle and can be ignored
+ slopecx=atan2(x[1]-c[1],x[0]-c[0])
+ if slopecx==slopecb:
+ continue
+ sdiff=slopecx-slopecb
+ if(sdiff<-pi):sdiff+=2*pi
+ if(sdiff>pi):sdiff-=2*pi
+ if(sdiff>0):
+ rpoints+=[i]
+ #the hull segment between points a and b consists of the hull segment between a and c, the point c, and the hull segment between c and b
+ ret=_findhull(rpoints, farpoint, b_i, points)+[farpoint]+_findhull(lpoints, a_i, farpoint, points)
+ return ret
+
+
+def convex_hull(points):
+ vertices = ConvexHull_qh(points)
+ return [points[idx] for idx in vertices]