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-rw-r--r--gerberex/rs274x.py241
1 files changed, 210 insertions, 31 deletions
diff --git a/gerberex/rs274x.py b/gerberex/rs274x.py
index 13d3421..fae0b32 100644
--- a/gerberex/rs274x.py
+++ b/gerberex/rs274x.py
@@ -3,10 +3,29 @@
# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com>
+from gerber.cam import FileSettings
import gerber.rs274x
-from gerber.gerber_statements import ADParamStmt, CoordStmt
+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
@@ -14,29 +33,74 @@ class GerberFile(gerber.rs274x.GerberFile):
if not isinstance(gerber_file, gerber.rs274x.GerberFile):
raise Exception('only gerber.rs274x.GerberFile object is specified')
- def swap_statement(statement):
- if isinstance(statement, AMParamStmt) and not isinstance(statement, AMParamStmtEx):
- return AMParamStmtEx.from_stmt(statement)
- elif isinstance(statement, ADParamStmt) and not isinstance(statement, AMParamStmtEx):
- return ADParamStmtEx.from_stmt(statement)
- else:
- return statement
- statements = [swap_statement(statement) for statement in gerber_file.statements]
- return cls(statements, gerber_file.settings, gerber_file.primitives,\
+ 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)
+ 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.statements:
+ 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
- else:
- statement.offset(x_offset, y_offset)
for primitive in self.primitives:
primitive.offset(x_offset, y_offset)
@@ -48,10 +112,10 @@ class GerberFile(gerber.rs274x.GerberFile):
last_y = 0
last_rx = 0
last_ry = 0
- for statement in self.statements:
- if isinstance(statement, AMParamStmtEx):
- statement.rotate(angle, center)
- elif isinstance(statement, CoordStmt) and statement.x != None and statement.y != None:
+ 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
@@ -77,31 +141,21 @@ class GerberFile(gerber.rs274x.GerberFile):
]
need_to_change = False
- insert_point = 0
- last_aperture = 0
- macros = {}
- for idx in range(0, len(self.statements)):
- statement = self.statements[idx]
- if isinstance(statement, AMParamStmtEx):
- macros[statement.name] = statement
- if not need_to_change:
- insert_point = idx + 1
+ for statement in self.aperture_defs:
if isinstance(statement, ADParamStmt) and statement.shape in ['R', 'O', 'P']:
need_to_change = True
- last_aperture = idx
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 macros:
+ while name in self.aperture_macros:
name = '%s_%d' % (macro_def[0], num)
num += 1
- self.statements.insert(insert_point, macro_def[1](name, self.units))
+ self.aperture_macros[name] = macro_def[1](name, self.units)
macro_defs[idx] = (name, macro_def[1])
- for idx in range(insert_point, last_aperture + len(macro_defs) + 1):
- statement = self.statements[idx]
+ for statement in self.aperture_defs:
if isinstance(statement, ADParamStmt):
if statement.shape == 'R':
statement.shape = macro_defs[RECTANGLE][0]
@@ -114,3 +168,128 @@ class GerberFile(gerber.rs274x.GerberFile):
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.op = None
+ self.interpolation = self.IP_LINEAR
+ self.direction = self.DIR_CLOCKWISE
+ self.x = 0.
+ self.y = 0.
+
+ def normalize_statement(self, stmt):
+ 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, CoordStmt):
+ self._normalize_coordinate(stmt)
+
+ if type(stmt).__name__ in self.ignored_stmt:
+ return (self.TYPE_NONE, None)
+ 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.only_function:
+ 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]:
+ self.direction = self.DIR_COUNTERCLOCKWISE
+ 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]:
+ self.direction = self.DIR_CLOCKWISE
+ stmt.function = 'G02'
+ return
+ 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:
+ stmt.i = self.matrix[4] * stmt.i if stmt.i is not None else 0
+ stmt.j = self.matrix[5] * stmt.j if stmt.j is not None else 0