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diff --git a/gerberex/rs274x.py b/gerberex/rs274x.py
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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com>
+
+from gerber.cam import FileSettings
+import gerber.rs274x
+from gerber.gerber_statements import *
+from gerberex.gerber_statements import AMParamStmt, AMParamStmtEx, ADParamStmtEx
+from gerberex.utility import rotate
+import re
+
+def loads(data, filename=None):
+ cls = gerber.rs274x.GerberParser
+ cls.SF = \
+ r"(?P<param>SF)(A(?P<a>{decimal}))?(B(?P<b>{decimal}))?".format(decimal=cls.DECIMAL)
+ cls.PARAMS = (cls.FS, cls.MO, cls.LP, cls.AD_CIRCLE,
+ cls.AD_RECT, cls.AD_OBROUND, cls.AD_POLY,
+ cls.AD_MACRO, cls.AM, cls.AS, cls.IF, cls.IN,
+ cls.IP, cls.IR, cls.MI, cls.OF, cls.SF, cls.LN)
+ cls.PARAM_STMT = [re.compile(r"%?{0}\*%?".format(p)) for p in cls.PARAMS]
+ return cls().parse_raw(data, filename)
+
+def write_gerber_header(file, settings):
+ file.write('%s\n%s\n%%IPPOS*%%\n' % (
+ MOParamStmt('MO', settings.units).to_gerber(settings),
+ FSParamStmt('FS', settings.zero_suppression,
+ settings.notation, settings.format).to_gerber(settings)))
+
+class GerberFile(gerber.rs274x.GerberFile):
+ @classmethod
+ def from_gerber_file(cls, gerber_file):
+ if not isinstance(gerber_file, gerber.rs274x.GerberFile):
+ raise Exception('only gerber.rs274x.GerberFile object is specified')
+
+ return cls(gerber_file.statements, gerber_file.settings, gerber_file.primitives,\
+ gerber_file.apertures, gerber_file.filename)
+
+ def __init__(self, statements, settings, primitives, apertures, filename=None):
+ super(GerberFile, self).__init__(statements, settings, primitives, apertures, filename)
+ self.context = GerberContext.from_settings(self.settings)
+ self.aperture_macros = {}
+ self.aperture_defs = []
+ self.main_statements = []
+ for stmt in self.statements:
+ type, stmts = self.context.normalize_statement(stmt)
+ if type == self.context.TYPE_AM:
+ for mdef in stmts:
+ self.aperture_macros[mdef.name] = mdef
+ elif type == self.context.TYPE_AD:
+ self.aperture_defs.extend(stmts)
+ elif type == self.context.TYPE_MAIN:
+ self.main_statements.extend(stmts)
+ if self.context.angle != 0:
+ self.rotate(self.context.angle)
+ if self.context.is_negative:
+ self.nagate_polarity()
+ self.context.notation = 'absolute'
+ self.context.zeros = 'trailing'
+
+ def write(self, filename=None):
+ self.context.notation = 'absolute'
+ self.context.zeros = 'trailing'
+ self.context.format = self.format
+ self.units = self.units
+ filename=filename if filename is not None else self.filename
+ with open(filename, 'w') as f:
+ write_gerber_header(f, self.context)
+ for macro in self.aperture_macros:
+ f.write(self.aperture_macros[macro].to_gerber(self.context) + '\n')
+ for aperture in self.aperture_defs:
+ f.write(aperture.to_gerber(self.context) + '\n')
+ for statement in self.main_statements:
+ f.write(statement.to_gerber(self.context) + '\n')
+ f.write('M02*\n')
+
+ def to_inch(self):
+ if self.units == 'metric':
+ for macro in self.aperture_macros:
+ self.aperture_macros[macro].to_inch()
+ for aperture in self.aperture_defs:
+ aperture.to_inch()
+ for statement in self.statements:
+ statement.to_inch()
+ self.units = 'inch'
+ self.context.units = 'inch'
+
+ def to_metric(self):
+ if self.units == 'inch':
+ for macro in self.aperture_macros:
+ self.aperture_macros[macro].to_metric()
+ for aperture in self.aperture_defs:
+ aperture.to_metric()
+ for statement in self.statements:
+ statement.to_metric()
+ self.units='metric'
+ self.context.units='metric'
+
+ def offset(self, x_offset=0, y_offset=0):
+ for statement in self.main_statements:
+ if isinstance(statement, CoordStmt):
+ if statement.x is not None:
+ statement.x += x_offset
+ if statement.y is not None:
+ statement.y += y_offset
+ for primitive in self.primitives:
+ primitive.offset(x_offset, y_offset)
+
+ def rotate(self, angle, center=(0,0)):
+ if angle % 360 == 0:
+ return
+ self._generalize_aperture()
+ last_x = 0
+ last_y = 0
+ last_rx = 0
+ last_ry = 0
+ for name in self.aperture_macros:
+ self.aperture_macros[name].rotate(angle, center)
+ for statement in self.main_statements:
+ if isinstance(statement, CoordStmt) and statement.x != None and statement.y != None:
+ if statement.i != None and statement.j != None:
+ cx = last_x + statement.i
+ cy = last_y + statement.j
+ cx, cy = rotate(cx, cy, angle, center)
+ statement.i = cx - last_rx
+ statement.j = cy - last_ry
+ last_x = statement.x
+ last_y = statement.y
+ last_rx, last_ry = rotate(statement.x, statement.y, angle, center)
+ statement.x = last_rx
+ statement.y = last_ry
+
+ def nagate_polarity(self):
+ for statement in self.main_statements:
+ if isinstance(statement, LPParamStmt):
+ statement.lp = 'dark' if statement.lp == 'clear' else 'clear'
+
+ def _generalize_aperture(self):
+ RECTANGLE = 0
+ LANDSCAPE_OBROUND = 1
+ PORTRATE_OBROUND = 2
+ POLYGON = 3
+ macro_defs = [
+ ('MACR', AMParamStmtEx.rectangle),
+ ('MACLO', AMParamStmtEx.landscape_obround),
+ ('MACPO', AMParamStmtEx.portrate_obround),
+ ('MACP', AMParamStmtEx.polygon)
+ ]
+
+ need_to_change = False
+ for statement in self.aperture_defs:
+ if isinstance(statement, ADParamStmt) and statement.shape in ['R', 'O', 'P']:
+ need_to_change = True
+
+ if need_to_change:
+ for idx in range(0, len(macro_defs)):
+ macro_def = macro_defs[idx]
+ name = macro_def[0]
+ num = 1
+ while name in self.aperture_macros:
+ name = '%s_%d' % (macro_def[0], num)
+ num += 1
+ self.aperture_macros[name] = macro_def[1](name, self.units)
+ macro_defs[idx] = (name, macro_def[1])
+ for statement in self.aperture_defs:
+ if isinstance(statement, ADParamStmt):
+ if statement.shape == 'R':
+ statement.shape = macro_defs[RECTANGLE][0]
+ elif statement.shape == 'O':
+ x = statement.modifiers[0][0] \
+ if len(statement.modifiers[0]) > 0 else 0
+ y = statement.modifiers[0][1] \
+ if len(statement.modifiers[0]) > 1 else 0
+ statement.shape = macro_defs[LANDSCAPE_OBROUND][0] \
+ if x > y else macro_defs[PORTRATE_OBROUND][0]
+ elif statement.shape == 'P':
+ statement.shape = macro_defs[POLYGON][0]
+
+class GerberContext(FileSettings):
+ TYPE_NONE = 'none'
+ TYPE_AM = 'am'
+ TYPE_AD = 'ad'
+ TYPE_MAIN = 'main'
+ IP_LINEAR = 'lenear'
+ IP_ARC = 'arc'
+ DIR_CLOCKWISE = 'cw'
+ DIR_COUNTERCLOCKWISE = 'ccw'
+
+ ignored_stmt = ('FSParamStmt', 'MOParamStmt', 'ASParamStmt',
+ 'INParamStmt', 'IPParamStmt', 'IRParamStmt',
+ 'MIParamStmt', 'OFParamStmt', 'SFParamStmt',
+ 'LNParamStmt', 'CommentStmt', 'EofStmt',)
+
+ @classmethod
+ def from_settings(cls, settings):
+ return cls(settings.notation, settings.units, settings.zero_suppression,
+ settings.format, settings.zeros, settings.angle_units)
+
+ def __init__(self, notation='absolute', units='inch',
+ zero_suppression=None, format=(2, 5), zeros=None,
+ angle_units='degrees',
+ name=None,
+ mirror=(False, False), offset=(0., 0.), scale=(1., 1.),
+ angle=0., axis='xy'):
+ super(GerberContext, self).__init__(notation, units, zero_suppression,
+ format, zeros, angle_units)
+ self.name = name
+ self.mirror = mirror
+ self.offset = offset
+ self.scale = scale
+ self.angle = angle
+ self.axis = axis
+
+ self.matrix = (1, 0,
+ 1, 0,
+ 1, 1)
+
+ self.is_negative = False
+ self.is_first_coordinate = True
+ self.no_polarity = True
+ self.in_single_quadrant_mode = False
+ self.op = None
+ self.interpolation = self.IP_LINEAR
+ self.direction = self.DIR_CLOCKWISE
+ self.x = 0.
+ self.y = 0.
+
+ def normalize_statement(self, stmt):
+ additional_stmts = None
+ if isinstance(stmt, INParamStmt):
+ self.name = stmt.name
+ elif isinstance(stmt, MIParamStmt):
+ self.mirror = (stmt.a, stmt.b)
+ self._update_matrix()
+ elif isinstance(stmt, OFParamStmt):
+ self.offset = (stmt.a, stmt.b)
+ self._update_matrix()
+ elif isinstance(stmt, SFParamStmt):
+ self.scale = (stmt.a, stmt.b)
+ self._update_matrix()
+ elif isinstance(stmt, ASParamStmt):
+ self.axis = 'yx' if stmt.mode == 'AYBX' else 'xy'
+ self._update_matrix()
+ elif isinstance(stmt, IRParamStmt):
+ self.angle = stmt.angle
+ elif isinstance(stmt, AMParamStmt) and not isinstance(stmt, AMParamStmtEx):
+ stmt = AMParamStmtEx.from_stmt(stmt)
+ return (self.TYPE_AM, [stmt])
+ elif isinstance(stmt, ADParamStmt) and not isinstance(stmt, AMParamStmtEx):
+ stmt = ADParamStmtEx.from_stmt(stmt)
+ return (self.TYPE_AD, [stmt])
+ elif isinstance(stmt, QuadrantModeStmt):
+ self.in_single_quadrant_mode = stmt.mode == 'single-quadrant'
+ stmt.mode = 'multi-quadrant'
+ elif isinstance(stmt, IPParamStmt):
+ self.is_negative = stmt.ip == 'negative'
+ elif isinstance(stmt, LPParamStmt):
+ self.no_polarity = False
+ elif isinstance(stmt, CoordStmt):
+ self._normalize_coordinate(stmt)
+ if self.is_first_coordinate:
+ self.is_first_coordinate = False
+ if self.no_polarity:
+ additional_stmts = [LPParamStmt('LP', 'dark'), stmt]
+
+ if type(stmt).__name__ in self.ignored_stmt:
+ return (self.TYPE_NONE, None)
+ elif additional_stmts is not None:
+ return (self.TYPE_MAIN, additional_stmts)
+ else:
+ return (self.TYPE_MAIN, [stmt])
+
+ def _update_matrix(self):
+ if self.axis == 'xy':
+ mx = -1 if self.mirror[0] else 1
+ my = -1 if self.mirror[1] else 1
+ self.matrix = (
+ self.scale[0] * mx, self.offset[0],
+ self.scale[1] * my, self.offset[1],
+ self.scale[0] * mx, self.scale[1] * my)
+ else:
+ mx = -1 if self.mirror[1] else 1
+ my = -1 if self.mirror[0] else 1
+ self.matrix = (
+ self.scale[1] * mx, self.offset[1],
+ self.scale[0] * my, self.offset[0],
+ self.scale[1] * mx, self.scale[0] * my)
+
+ def _normalize_coordinate(self, stmt):
+ if stmt.function == 'G01' or stmt.function == 'G1':
+ self.interpolation = self.IP_LINEAR
+ elif stmt.function == 'G02' or stmt.function == 'G2':
+ self.interpolation = self.IP_ARC
+ self.direction = self.DIR_CLOCKWISE
+ if self.mirror[0] != self.mirror[1]:
+ stmt.function = 'G03'
+ elif stmt.function == 'G03' or stmt.function == 'G3':
+ self.interpolation = self.IP_ARC
+ self.direction = self.DIR_COUNTERCLOCKWISE
+ if self.mirror[0] != self.mirror[1]:
+ stmt.function = 'G02'
+ if stmt.only_function:
+ return
+
+ last_x = self.x
+ last_y = self.y
+ if self.notation == 'absolute':
+ x = stmt.x if stmt.x is not None else self.x
+ y = stmt.y if stmt.y is not None else self.y
+ else:
+ x = self.x + stmt.x if stmt.x is not None else 0
+ y = self.y + stmt.y if stmt.y is not None else 0
+ self.x, self.y = x, y
+ self.op = stmt.op if stmt.op is not None else self.op
+
+ stmt.op = self.op
+ stmt.x = self.matrix[0] * x + self.matrix[1]
+ stmt.y = self.matrix[2] * y + self.matrix[3]
+ if stmt.op == 'D01' and self.interpolation == self.IP_ARC:
+ qx, qy = 1, 1
+ if self.in_single_quadrant_mode:
+ if self.direction == self.DIR_CLOCKWISE:
+ qx = 1 if y > last_y else -1
+ qy = 1 if x < last_x else -1
+ else:
+ qx = 1 if y < last_y else -1
+ qy = 1 if x > last_x else -1
+ if last_x == x and last_y == y:
+ qx, qy = 0, 0
+ stmt.i = qx * self.matrix[4] * stmt.i if stmt.i is not None else 0
+ stmt.j = qy * self.matrix[5] * stmt.j if stmt.j is not None else 0