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-rw-r--r--README.md1
-rw-r--r--examples/cairo_example.pngbin110829 -> 104949 bytes
-rw-r--r--examples/cairo_example.py19
-rw-r--r--gerber/cam.py10
-rw-r--r--gerber/common.py9
-rwxr-xr-xgerber/excellon.py22
-rw-r--r--gerber/exceptions.py31
-rw-r--r--gerber/render/cairo_backend.py180
-rw-r--r--gerber/render/render.py21
-rw-r--r--gerber/render/theme.py50
-rw-r--r--gerber/rs274x.py68
-rw-r--r--gerber/tests/test_common.py5
-rw-r--r--gerber/tests/test_excellon.py42
13 files changed, 317 insertions, 141 deletions
diff --git a/README.md b/README.md
index d33fa13..27764be 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ Rendering Examples:
-------------------
###Top Composite rendering
![Composite Top Image](examples/cairo_example.png)
+
Source code for this example can be found [here](examples/cairo_example.py).
diff --git a/examples/cairo_example.png b/examples/cairo_example.png
index 485586e..fc4536a 100644
--- a/examples/cairo_example.png
+++ b/examples/cairo_example.png
Binary files differ
diff --git a/examples/cairo_example.py b/examples/cairo_example.py
index a312e89..f2f6723 100644
--- a/examples/cairo_example.py
+++ b/examples/cairo_example.py
@@ -25,7 +25,7 @@ a .png file.
import os
from gerber import read
-from gerber.render import GerberCairoContext
+from gerber.render import GerberCairoContext, theme
GERBER_FOLDER = os.path.abspath(os.path.join(os.path.dirname(__file__), 'gerbers'))
@@ -40,25 +40,30 @@ drill = read(os.path.join(GERBER_FOLDER, 'ncdrill.DRD'))
# Create a new drawing context
ctx = GerberCairoContext()
+# Set opacity and color for copper layer
+ctx.alpha = 1.0
+ctx.color = theme.COLORS['hasl copper']
+
# Draw the copper layer
copper.render(ctx)
# Set opacity and color for soldermask layer
-ctx.alpha = 0.6
-ctx.color = (0.2, 0.2, 0.75)
+ctx.alpha = 0.75
+ctx.color = theme.COLORS['green soldermask']
# Draw the soldermask layer
-mask.render(ctx)
+mask.render(ctx, invert=True)
# Set opacity and color for silkscreen layer
-ctx.alpha = 0.85
-ctx.color = (1, 1, 1)
+ctx.alpha = 1.0
+ctx.color = theme.COLORS['white']
# Draw the silkscreen layer
silk.render(ctx)
# Set opacity for drill layer
-ctx.alpha = 1.
+ctx.alpha = 1.0
+ctx.color = theme.COLORS['black']
drill.render(ctx)
# Write output to png file
diff --git a/gerber/cam.py b/gerber/cam.py
index 8e31bf0..ae96474 100644
--- a/gerber/cam.py
+++ b/gerber/cam.py
@@ -248,7 +248,7 @@ class CamFile(object):
"""
pass
- def render(self, ctx, filename=None):
+ def render(self, ctx, invert=False, filename=None):
""" Generate image of layer.
Parameters
@@ -262,10 +262,14 @@ class CamFile(object):
ctx.set_bounds(self.bounds)
ctx._paint_background()
- if ctx.invert:
+ if invert:
+ ctx.invert = True
ctx._paint_inverted_layer()
-
for p in self.primitives:
ctx.render(p)
+ if invert:
+ ctx.invert = False
+ ctx._render_mask()
+
if filename is not None:
ctx.dump(filename)
diff --git a/gerber/common.py b/gerber/common.py
index 1659e3b..f8979dc 100644
--- a/gerber/common.py
+++ b/gerber/common.py
@@ -17,9 +17,11 @@
from . import rs274x
from . import excellon
+from .exceptions import ParseError
from .utils import detect_file_format
+
def read(filename):
""" Read a gerber or excellon file and return a representative object.
@@ -35,14 +37,15 @@ def read(filename):
ExcellonFile. Returns None if file is not an Excellon or Gerber file.
"""
with open(filename, 'rU') as f:
- data = f.read()
+ data = f.read()
fmt = detect_file_format(data)
if fmt == 'rs274x':
return rs274x.read(filename)
elif fmt == 'excellon':
return excellon.read(filename)
else:
- raise TypeError('Unable to detect file format')
+ raise ParseError('Unable to detect file format')
+
def loads(data):
""" Read gerber or excellon file contents from a string and return a
@@ -59,7 +62,7 @@ def loads(data):
CncFile object representing the file, either GerberFile or
ExcellonFile. Returns None if file is not an Excellon or Gerber file.
"""
-
+
fmt = detect_file_format(data)
if fmt == 'rs274x':
return rs274x.loads(data)
diff --git a/gerber/excellon.py b/gerber/excellon.py
index 430ee7d..a0bad4f 100755
--- a/gerber/excellon.py
+++ b/gerber/excellon.py
@@ -26,16 +26,18 @@ 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
-from .excellon_statements import *
-from .excellon_tool import ExcellonToolDefinitionParser
-from .cam import CamFile, FileSettings
-from .primitives import Drill, Slot
-from .utils import inch, metric
def read(filename):
@@ -56,8 +58,8 @@ def read(filename):
data = f.read()
settings = FileSettings(**detect_excellon_format(data))
return ExcellonParser(settings).parse(filename)
-
-def loads(data, settings = None, tools = None):
+
+def loads(data, settings = None, tools = None):
""" Read data from string and return an ExcellonFile
Parameters
----------
@@ -402,13 +404,13 @@ class ExcellonParser(object):
def parse_raw(self, data, filename=None):
for line in StringIO(data):
- self._parse(line.strip())
+ 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(self, line):
+ def _parse_line(self, line):
# skip empty lines
if not line.strip():
return
@@ -599,7 +601,7 @@ class ExcellonParser(object):
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)
diff --git a/gerber/exceptions.py b/gerber/exceptions.py
new file mode 100644
index 0000000..71defd1
--- /dev/null
+++ b/gerber/exceptions.py
@@ -0,0 +1,31 @@
+#! /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/render/cairo_backend.py b/gerber/render/cairo_backend.py
index 2b7c2ff..5a3c7a1 100644
--- a/gerber/render/cairo_backend.py
+++ b/gerber/render/cairo_backend.py
@@ -28,6 +28,7 @@ import tempfile
from ..primitives import *
+
class GerberCairoContext(GerberContext):
def __init__(self, scale=300):
GerberContext.__init__(self)
@@ -35,12 +36,17 @@ class GerberCairoContext(GerberContext):
self.surface = None
self.ctx = None
self.bg = False
-
+ self.mask = None
+ self.mask_ctx = None
+ self.origin_in_pixels = None
+ self.size_in_pixels = None
+
def set_bounds(self, bounds):
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 = map(mul, size_in_inch, self.scale)
-
+ self.origin_in_pixels = tuple(map(mul, origin_in_inch, self.scale)) if self.origin_in_pixels is None else self.origin_in_pixels
+ self.size_in_pixels = size_in_pixels if self.size_in_pixels is None else self.size_in_pixels
if self.surface is None:
self.surface_buffer = tempfile.NamedTemporaryFile()
self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1])
@@ -48,29 +54,38 @@ class GerberCairoContext(GerberContext):
self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
self.ctx.scale(1, -1)
self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1])
- # self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), -origin_in_inch[1]*self.scale[1])
+ self.mask = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1])
+ self.mask_ctx = cairo.Context(self.mask)
+ self.mask_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
+ self.mask_ctx.scale(1, -1)
+ self.mask_ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1])
def _render_line(self, line, color):
start = map(mul, line.start, self.scale)
end = map(mul, line.end, self.scale)
+ if not self.invert:
+ ctx = self.ctx
+ ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ ctx.set_operator(cairo.OPERATOR_OVER if line.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ else:
+ ctx = self.mask_ctx
+ ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_CLEAR)
if isinstance(line.aperture, Circle):
width = line.aperture.diameter
- self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
- self.ctx.set_line_width(width * self.scale[0])
- self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
- self.ctx.move_to(*start)
- self.ctx.line_to(*end)
- self.ctx.stroke()
+ ctx.set_line_width(width * self.scale[0])
+ ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+
+ ctx.move_to(*start)
+ ctx.line_to(*end)
+ ctx.stroke()
elif isinstance(line.aperture, Rectangle):
points = [tuple(map(mul, x, self.scale)) for x in line.vertices]
- self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
- self.ctx.set_line_width(0)
- self.ctx.move_to(*points[0])
+ ctx.set_line_width(0)
+ ctx.move_to(*points[0])
for point in points[1:]:
- self.ctx.line_to(*point)
- self.ctx.fill()
+ ctx.line_to(*point)
+ ctx.fill()
def _render_arc(self, arc, color):
center = map(mul, arc.center, self.scale)
@@ -86,27 +101,42 @@ class GerberCairoContext(GerberContext):
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_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert)else cairo.OPERATOR_CLEAR)
- self.ctx.set_line_width(width * self.scale[0])
- self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
- self.ctx.move_to(*start) # You actually have to do this...
+
+ if not self.invert:
+ ctx = self.ctx
+ ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ ctx.set_operator(cairo.OPERATOR_OVER if arc.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ else:
+ ctx = self.mask_ctx
+ ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_CLEAR)
+
+ ctx.set_line_width(width * self.scale[0])
+ ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ ctx.move_to(*start) # You actually have to do this...
if arc.direction == 'counterclockwise':
- self.ctx.arc(center[0], center[1], radius, angle1, angle2)
+ ctx.arc(center[0], center[1], radius, angle1, angle2)
else:
- self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2)
- self.ctx.move_to(*end) # ...lame
- self.ctx.stroke()
+ ctx.arc_negative(center[0], center[1], radius, angle1, angle2)
+ ctx.move_to(*end) # ...lame
+ ctx.stroke()
def _render_region(self, region, color):
- self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
- self.ctx.set_line_width(0)
- self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
- self.ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale)))
+ if not self.invert:
+ ctx = self.ctx
+ ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ ctx.set_operator(cairo.OPERATOR_OVER if region.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ else:
+ ctx = self.mask_ctx
+ ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_CLEAR)
+
+ ctx.set_line_width(0)
+ ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale)))
for p in region.primitives:
if isinstance(p, Line):
- self.ctx.line_to(*tuple(map(mul, p.end, self.scale)))
+ ctx.line_to(*tuple(map(mul, p.end, self.scale)))
else:
center = map(mul, p.center, self.scale)
start = map(mul, p.start, self.scale)
@@ -115,25 +145,40 @@ class GerberCairoContext(GerberContext):
angle1 = p.start_angle
angle2 = p.end_angle
if p.direction == 'counterclockwise':
- self.ctx.arc(center[0], center[1], radius, angle1, angle2)
+ ctx.arc(center[0], center[1], radius, angle1, angle2)
else:
- self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2)
- self.ctx.fill()
+ ctx.arc_negative(center[0], center[1], radius, angle1, angle2)
+ ctx.fill()
def _render_circle(self, circle, color):
center = tuple(map(mul, circle.position, self.scale))
- self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
- self.ctx.set_line_width(0)
- self.ctx.arc(center[0], center[1], circle.radius * self.scale[0], 0, 2 * math.pi)
- self.ctx.fill()
+ if not self.invert:
+ ctx = self.ctx
+ ctx.set_source_rgba(*color, alpha=self.alpha)
+ ctx.set_operator(cairo.OPERATOR_OVER if circle.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ else:
+ ctx = self.mask_ctx
+ ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_CLEAR)
+ ctx.set_line_width(0)
+ ctx.arc(center[0], center[1], radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi)
+ ctx.fill()
def _render_rectangle(self, rectangle, color):
ll = map(mul, rectangle.lower_left, self.scale)
width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale)))
+ if not self.invert:
+ ctx = self.ctx
+ ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ ctx.set_operator(cairo.OPERATOR_OVER if rectangle.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ else:
+ ctx = self.mask_ctx
+ ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_CLEAR)
+
if rectangle.rotation != 0:
- self.ctx.save()
+ ctx.save()
center = map(mul, rectangle.position, self.scale)
matrix = cairo.Matrix()
@@ -142,16 +187,14 @@ class GerberCairoContext(GerberContext):
ll[0] = ll[0] - center[0]
ll[1] = ll[1] - center[1]
matrix.rotate(rectangle.rotation)
- self.ctx.transform(matrix)
-
- self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
- self.ctx.set_line_width(0)
- self.ctx.rectangle(ll[0], ll[1], width, height)
- self.ctx.fill()
+ ctx.transform(matrix)
+
+ ctx.set_line_width(0)
+ ctx.rectangle(ll[0], ll[1], width, height)
+ ctx.fill()
if rectangle.rotation != 0:
- self.ctx.restore()
+ ctx.restore()
def _render_obround(self, obround, color):
self._render_circle(obround.subshapes['circle1'], color)
@@ -196,14 +239,21 @@ class GerberCairoContext(GerberContext):
end = map(mul, slot.end, self.scale)
width = slot.diameter
+
+ if not self.invert:
+ ctx = self.ctx
+ ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)
+ ctx.set_operator(cairo.OPERATOR_OVER if slot.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
+ else:
+ ctx = self.mask_ctx
+ ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
+ ctx.set_operator(cairo.OPERATOR_CLEAR)
- self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (slot.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
- self.ctx.set_line_width(width * self.scale[0])
- self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
- self.ctx.move_to(*start)
- self.ctx.line_to(*end)
- self.ctx.stroke()
+ ctx.set_line_width(width * self.scale[0])
+ ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ ctx.move_to(*start)
+ ctx.line_to(*end)
+ ctx.stroke()
def _render_amgroup(self, amgroup, color):
self.ctx.push_group()
@@ -217,17 +267,23 @@ class GerberCairoContext(GerberContext):
self.ctx.set_font_size(200)
self._render_circle(Circle(primitive.position, 0.01), color)
self.ctx.set_source_rgb(*color)
- self.ctx.set_operator(cairo.OPERATOR_OVER if (primitive.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
+ self.ctx.set_operator(cairo.OPERATOR_OVER if primitive.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
self.ctx.move_to(*[self.scale[0] * (coord + 0.01) for coord in primitive.position])
self.ctx.scale(1, -1)
self.ctx.show_text(primitive.net_name)
self.ctx.scale(1, -1)
- def _paint_inverted_layer(self):
- self.ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2])
+ def _paint_inverted_layer(self):
+ self.mask_ctx.set_operator(cairo.OPERATOR_OVER)
+ self.mask_ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=self.alpha)
+ self.mask_ctx.paint()
+
+ def _render_mask(self):
self.ctx.set_operator(cairo.OPERATOR_OVER)
+ ptn = cairo.SurfacePattern(self.mask)
+ ptn.set_matrix(cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], y0=self.size_in_pixels[1] + self.origin_in_pixels[1]))
+ self.ctx.set_source(ptn)
self.ctx.paint()
- self.ctx.set_operator(cairo.OPERATOR_CLEAR)
def _paint_background(self):
if not self.bg:
@@ -237,21 +293,17 @@ class GerberCairoContext(GerberContext):
def dump(self, filename):
is_svg = filename.lower().endswith(".svg")
-
if is_svg:
self.surface.finish()
self.surface_buffer.flush()
-
with open(filename, "w") as f:
self.surface_buffer.seek(0)
f.write(self.surface_buffer.read())
f.flush()
-
else:
self.surface.write_to_png(filename)
-
+
def dump_svg_str(self):
self.surface.finish()
self.surface_buffer.flush()
return self.surface_buffer.read()
-
diff --git a/gerber/render/render.py b/gerber/render/render.py
index 128496f..6ae9392 100644
--- a/gerber/render/render.py
+++ b/gerber/render/render.py
@@ -23,12 +23,13 @@ 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,
-)
+ QuadrantModeStmt,)
-from ..primitives import *
class GerberContext(object):
""" Gerber rendering context base class
@@ -213,3 +214,17 @@ class GerberContext(object):
def _render_test_record(self, primitive, color):
pass
+
+class Renderable(object):
+ def __init__(self, color=None, alpha=None, invert=False):
+ self.color = color
+ self.alpha = alpha
+ self.invert = invert
+
+ def to_render(self):
+ """ Override this in subclass. Should return a list of Primitives or Renderables
+ """
+ raise NotImplementedError('to_render() must be implemented in subclass')
+
+ def apply_theme(self, theme):
+ raise NotImplementedError('apply_theme() must be implemented in subclass')
diff --git a/gerber/render/theme.py b/gerber/render/theme.py
new file mode 100644
index 0000000..5d39bb6
--- /dev/null
+++ b/gerber/render/theme.py
@@ -0,0 +1,50 @@
+#! /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.
+
+
+COLORS = {
+ 'black': (0.0, 0.0, 0.0),
+ 'white': (1.0, 1.0, 1.0),
+ 'fr-4': (0.702, 0.655, 0.192),
+ 'green soldermask': (0.0, 0.612, 0.396),
+ 'blue soldermask': (0.059, 0.478, 0.651),
+ 'red soldermask': (0.968, 0.169, 0.165),
+ 'black soldermask': (0.298, 0.275, 0.282),
+ 'enig copper': (0.780, 0.588, 0.286),
+ 'hasl copper': (0.871, 0.851, 0.839)
+}
+
+
+class RenderSettings(object):
+ def __init__(self, color, alpha=1.0, invert=False):
+ self.color = color
+ self.alpha = alpha
+ self.invert = False
+
+
+class Theme(object):
+ def __init__(self, **kwargs):
+ self.background = kwargs.get('background', RenderSettings(COLORS['black'], 0.0))
+ self.topsilk = kwargs.get('topsilk', RenderSettings(COLORS['white']))
+ self.topsilk = kwargs.get('bottomsilk', RenderSettings(COLORS['white']))
+ self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], 0.8, True))
+ self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], 0.8, True))
+ self.top = kwargs.get('top', RenderSettings(COLORS['hasl copper']))
+ self.bottom = kwargs.get('top', RenderSettings(COLORS['hasl copper']))
+ self.drill = kwargs.get('drill', self.background)
+
+
diff --git a/gerber/rs274x.py b/gerber/rs274x.py
index 384d498..f8b3222 100644
--- a/gerber/rs274x.py
+++ b/gerber/rs274x.py
@@ -27,7 +27,7 @@ try:
from cStringIO import StringIO
except(ImportError):
from io import StringIO
-
+
from .gerber_statements import *
from .primitives import *
from .cam import CamFile, FileSettings
@@ -51,8 +51,21 @@ def read(filename):
def loads(data):
+ """ Generate a GerberFile object from rs274x data in memory
+
+ Parameters
+ ----------
+ data : string
+ string containing gerber file contents
+
+ Returns
+ -------
+ file : :class:`gerber.rs274x.GerberFile`
+ A GerberFile created from the specified file.
+ """
return GerberParser().parse_raw(data)
+
class GerberFile(CamFile):
""" A class representing a single gerber file
@@ -234,7 +247,7 @@ class GerberParser(object):
def parse(self, filename):
with open(filename, "rU") as fp:
data = fp.read()
- return self.parse_raw(data, filename=None)
+ return self.parse_raw(data, filename)
def parse_raw(self, data, filename=None):
for stmt in self._parse(self._split_commands(data)):
@@ -303,7 +316,6 @@ class GerberParser(object):
oldline = line
continue
-
did_something = True # make sure we do at least one loop
while did_something and len(line) > 0:
did_something = False
@@ -321,23 +333,7 @@ class GerberParser(object):
line = r
did_something = True
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
-
+
# aperture selection
(aperture, r) = _match_one(self.APERTURE_STMT, line)
if aperture:
@@ -346,14 +342,6 @@ class GerberParser(object):
line = r
continue
- # comment
- (comment, r) = _match_one(self.COMMENT_STMT, line)
- if comment:
- yield CommentStmt(comment["comment"])
- did_something = True
- line = r
- continue
-
# parameter
(param, r) = _match_one_from_many(self.PARAM_STMT, line)
@@ -406,6 +394,30 @@ class GerberParser(object):
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:
diff --git a/gerber/tests/test_common.py b/gerber/tests/test_common.py
index 7c66c0f..5991e5e 100644
--- a/gerber/tests/test_common.py
+++ b/gerber/tests/test_common.py
@@ -2,6 +2,7 @@
# -*- 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
@@ -31,12 +32,12 @@ def test_load_from_string():
top_copper = loads(f.read())
assert_true(isinstance(ncdrill, ExcellonFile))
assert_true(isinstance(top_copper, GerberFile))
-
+
def test_file_type_validation():
""" Test file format validation
"""
- assert_raises(TypeError, read, 'LICENSE')
+ assert_raises(ParseError, read, 'LICENSE')
diff --git a/gerber/tests/test_excellon.py b/gerber/tests/test_excellon.py
index afc2917..cd94b0f 100644
--- a/gerber/tests/test_excellon.py
+++ b/gerber/tests/test_excellon.py
@@ -99,60 +99,60 @@ def test_parser_hole_sizes():
def test_parse_whitespace():
p = ExcellonParser(FileSettings())
- assert_equal(p._parse(' '), None)
+ assert_equal(p._parse_line(' '), None)
def test_parse_comment():
p = ExcellonParser(FileSettings())
- p._parse(';A comment')
+ p._parse_line(';A comment')
assert_equal(p.statements[0].comment, 'A comment')
def test_parse_format_comment():
p = ExcellonParser(FileSettings())
- p._parse('; FILE_FORMAT=9:9 ')
+ p._parse_line('; FILE_FORMAT=9:9 ')
assert_equal(p.format, (9, 9))
def test_parse_header():
p = ExcellonParser(FileSettings())
- p._parse('M48 ')
+ p._parse_line('M48 ')
assert_equal(p.state, 'HEADER')
- p._parse('M95 ')
+ p._parse_line('M95 ')
assert_equal(p.state, 'DRILL')
def test_parse_rout():
p = ExcellonParser(FileSettings())
- p._parse('G00 ')
+ p._parse_line('G00 ')
assert_equal(p.state, 'ROUT')
- p._parse('G05 ')
+ p._parse_line('G05 ')
assert_equal(p.state, 'DRILL')
def test_parse_version():
p = ExcellonParser(FileSettings())
- p._parse('VER,1 ')
+ p._parse_line('VER,1 ')
assert_equal(p.statements[0].version, 1)
- p._parse('VER,2 ')
+ p._parse_line('VER,2 ')
assert_equal(p.statements[1].version, 2)
def test_parse_format():
p = ExcellonParser(FileSettings())
- p._parse('FMAT,1 ')
+ p._parse_line('FMAT,1 ')
assert_equal(p.statements[0].format, 1)
- p._parse('FMAT,2 ')
+ p._parse_line('FMAT,2 ')
assert_equal(p.statements[1].format, 2)
def test_parse_units():
settings = FileSettings(units='inch', zeros='trailing')
p = ExcellonParser(settings)
- p._parse(';METRIC,LZ')
+ p._parse_line(';METRIC,LZ')
assert_equal(p.units, 'inch')
assert_equal(p.zeros, 'trailing')
- p._parse('METRIC,LZ')
+ p._parse_line('METRIC,LZ')
assert_equal(p.units, 'metric')
assert_equal(p.zeros, 'leading')
@@ -161,9 +161,9 @@ def test_parse_incremental_mode():
settings = FileSettings(units='inch', zeros='trailing')
p = ExcellonParser(settings)
assert_equal(p.notation, 'absolute')
- p._parse('ICI,ON ')
+ p._parse_line('ICI,ON ')
assert_equal(p.notation, 'incremental')
- p._parse('ICI,OFF ')
+ p._parse_line('ICI,OFF ')
assert_equal(p.notation, 'absolute')
@@ -171,29 +171,29 @@ def test_parse_absolute_mode():
settings = FileSettings(units='inch', zeros='trailing')
p = ExcellonParser(settings)
assert_equal(p.notation, 'absolute')
- p._parse('ICI,ON ')
+ p._parse_line('ICI,ON ')
assert_equal(p.notation, 'incremental')
- p._parse('G90 ')
+ p._parse_line('G90 ')
assert_equal(p.notation, 'absolute')
def test_parse_repeat_hole():
p = ExcellonParser(FileSettings())
p.active_tool = ExcellonTool(FileSettings(), number=8)
- p._parse('R03X1.5Y1.5')
+ p._parse_line('R03X1.5Y1.5')
assert_equal(p.statements[0].count, 3)
def test_parse_incremental_position():
p = ExcellonParser(FileSettings(notation='incremental'))
- p._parse('X01Y01')
- p._parse('X01Y01')
+ p._parse_line('X01Y01')
+ p._parse_line('X01Y01')
assert_equal(p.pos, [2.,2.])
def test_parse_unknown():
p = ExcellonParser(FileSettings())
- p._parse('Not A Valid Statement')
+ p._parse_line('Not A Valid Statement')
assert_equal(p.statements[0].stmt, 'Not A Valid Statement')
generated by cgit (git 2.34.1) at 2024-11-02 21:47:29 +0000