From 08253b40f6f677c4edaeb7108177846d8f0d8703 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Mon, 6 Oct 2014 13:11:16 -0400 Subject: Update excellon statements/ExcellonFile --- gerber/cnc.py | 3 +- gerber/excellon.py | 96 ++++++++++++++++++--------------- gerber/excellon_statements.py | 122 +++++++++++++++++++++++++++++++++++++++--- gerber/gerber.py | 3 +- 4 files changed, 173 insertions(+), 51 deletions(-) (limited to 'gerber') diff --git a/gerber/cnc.py b/gerber/cnc.py index aaa1a42..d17517a 100644 --- a/gerber/cnc.py +++ b/gerber/cnc.py @@ -92,7 +92,7 @@ class CncFile(object): decimal digits) """ - def __init__(self, settings=None, filename=None): + def __init__(self, statements=None, settings=None, filename=None): if settings is not None: self.notation = settings['notation'] self.units = settings['units'] @@ -103,6 +103,7 @@ class CncFile(object): self.units = 'inch' self.zero_suppression = 'trailing' self.format = (2, 5) + self.statements = statements if statements is not None else [] self.filename = filename @property diff --git a/gerber/excellon.py b/gerber/excellon.py index 6ae182b..45a8e4b 100755 --- a/gerber/excellon.py +++ b/gerber/excellon.py @@ -57,8 +57,8 @@ class ExcellonFile(CncFile): either 'inch' or 'metric'. """ - def __init__(self, tools, hits, settings, filename=None): - super(ExcellonFile, self).__init__(settings, filename) + def __init__(self, statements, tools, hits, settings, filename=None): + super(ExcellonFile, self).__init__(statements, settings, filename) self.tools = tools self.hits = hits @@ -98,14 +98,20 @@ class ExcellonParser(object): with open(filename, 'r') as f: for line in f: self._parse(line) - return ExcellonFile(self.tools, self.hits, self._settings(), filename) + return ExcellonFile(self.statements, self.tools, self.hits, self._settings(), filename) def dump(self, filename): if self.ctx is not None: self.ctx.dump(filename) def _parse(self, line): - if 'M48' in line: + zs = self._settings()['zero_suppression'] + fmt = self._settings()['format'] + + if line[0] == ';': + self.statements.append(CommentStmt.from_excellon(line)) + + elif line[:3] == 'M48': self.statements.append(HeaderBeginStmt()) self.state = 'HEADER' @@ -114,56 +120,59 @@ class ExcellonParser(object): if self.state == 'HEADER': self.state = 'DRILL' - elif 'M95' in line: + elif line[:3] == 'M95': self.statements.append(HeaderEndStmt()) if self.state == 'HEADER': self.state = 'DRILL' - elif 'G00' in line: + elif line[:3] == 'G00': self.state = 'ROUT' - elif 'G05' in line: + elif line[:3] == 'G05': self.state = 'DRILL' - - if 'INCH' in line or line.strip() == 'M72': - self.units = 'inch' - - elif 'METRIC' in line or line.strip() == 'M71': - self.units = 'metric' - - if 'LZ' in line: - self.zeros = 'L' - - elif 'TZ' in line: - self.zeros = 'T' - - if 'ICI' in line and 'ON' in line or line.strip() == 'G91': - self.notation = 'incremental' - - if 'ICI' in line and 'OFF' in line or line.strip() == 'G90': - self.notation = 'incremental' - - zs = self._settings()['zero_suppression'] - fmt = self._settings()['format'] + + elif ('INCH' in line or 'METRIC' in line) and ('LZ' in line or 'TZ' in line): + stmt = UnitStmt.from_excellon(line) + self.units = stmt.units + self.zero_suppression = stmt.zero_suppression + 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) # tool definition - if line[0] == 'T' and self.state == 'HEADER': - tool = ExcellonTool.from_line(line, self._settings()) + elif line[0] == 'T' and self.state == 'HEADER': + tool = ExcellonTool.from_excellon(line, self._settings()) self.tools[tool.number] = tool + self.statements.append(tool) elif line[0] == 'T' and self.state != 'HEADER': - self.active_tool = self.tools[int(line.strip().split('T')[1])] - - if line[0] in ['X', 'Y']: - x = None - y = None - if line[0] == 'X': - splitline = line.strip('X').split('Y') - x = parse_gerber_value(splitline[0].strip(), fmt, zs) - if len(splitline) == 2: - y = parse_gerber_value(splitline[1].strip(), fmt, zs) - else: - y = parse_gerber_value(line.strip(' Y'), fmt, zs) + stmt = ToolSelectionStmt.from_excellon(line) + self.active_tool self.tools[stmt.tool] + #self.active_tool = self.tools[int(line.strip().split('T')[1])] + self.statements.append(statement) + + elif line[0] in ['X', 'Y']: + stmt = CoordinateStmt.from_excellon(line, fmt, zs) + x = stmt.x + y = stmt.y + self.statements.append(stmt) + #x = None + #y = None + #if line[0] == 'X': + # splitline = line.strip('X').split('Y') + # x = parse_gerber_value(splitline[0].strip(), fmt, zs) + # if len(splitline) == 2: + # y = parse_gerber_value(splitline[1].strip(), fmt, zs) + #else: + # y = parse_gerber_value(line.strip(' Y'), fmt, zs) if self.notation == 'absolute': if x is not None: self.pos[0] = x @@ -180,6 +189,9 @@ class ExcellonParser(object): if self.ctx is not None: self.ctx.drill(self.pos[0], self.pos[1], self.active_tool.diameter) + + else: + self.statements.append(UnknownStmt.from_excellon(line)) def _settings(self): return FileSettings(units=self.units, format=self.format, diff --git a/gerber/excellon_statements.py b/gerber/excellon_statements.py index 4544f08..faadd20 100644 --- a/gerber/excellon_statements.py +++ b/gerber/excellon_statements.py @@ -18,13 +18,21 @@ from .utils import write_gerber_value -__all__ = ['ExcellonTool', 'CommentStmt', 'HeaderBeginStmt', 'HeaderEndStmt', +__all__ = ['ExcellonTool', 'ToolSelectionStatment', 'CoordinateStmt', + 'CommentStmt', 'HeaderBeginStmt', 'HeaderEndStmt', + 'RewindStopStmt', 'EndOfProgramStmt', 'UnitStmt', + 'IncrementalModeStmt', 'VersionStmt', 'FormatStmt', 'LinkToolStmt', + 'MeasuringModeStmt', 'UnknownStmt', ] class ExcellonStatement(object): """ Excellon Statement abstract base class """ + @classmethod + def from_excellon(cls, line): + pass + def to_excellon(self): pass @@ -74,7 +82,7 @@ class ExcellonTool(ExcellonStatement): """ @classmethod - def from_line(cls, line, settings): + def from_excellon(cls, line, settings): """ Create a Tool from an excellon file tool definition line. Parameters @@ -155,7 +163,62 @@ class ExcellonTool(ExcellonStatement): return '' % (self.number, self.diameter, unit) +class ToolSelectionStatment(ExcellonStatement): + + @classmethod + def from_excellon(cls, line): + line = line.strip()[1:] + compensation_index = None + tool = int(line[:2]) + if len(line) > 2: + compensation_index = int(line[2:]) + return cls(tool, compensation_index) + + def __init__(self, tool, compensation_index=None): + tool = int(tool) + compensation_index = int(compensation_index) if compensation_index else None + self.tool = tool + self.compensation_index = compensation_index + + def to_excellon(self): + stmt = 'T%02d' % self.tool + if self.compensation_index is not None: + stmt += '%02d' % self.compensation_index + return stmt + + +class CoordinateStmt(ExcellonStatement): + + def from_excellon(cls, line, format=(2, 5), zero_suppression='trailing'): + x = None + y = None + if line[0] == 'X': + splitline = line.strip('X').split('Y') + x = parse_gerber_value(splitline[0].strip(), format, zero_suppression) + if len(splitline) == 2: + y = parse_gerber_value(splitline[1].strip(), format, zero_suppression) + else: + y = parse_gerber_value(line.strip(' Y'), format, zero_suppression) + return cls(x, y) + + def __init__(self, x=None, y=None): + self.x = x + self.y = y + + def to_excellon(self): + stmt = '' + if self.x is not None: + stmt.append('X%s' % write_gerber_value(self.x)) + if self.y is not None: + stmt.append('Y%s' % write_gerber_value(self.y)) + return stmt + + class CommentStmt(ExcellonStatement): + + def from_excellon(self, line): + return cls(line.strip().lstrip(';')) + def __init__(self, comment): self.comment = comment @@ -206,6 +269,12 @@ class EndOfProgramStmt(ExcellonStatement): class UnitStmt(ExcellonStatement): + @classmethod + def from_excellon(cls, line): + units = 'inch' if 'INCH' in line else 'metric' + zero_suppression = 'trailing' if 'LZ' in line else 'leading' + return cls(units, zero_suppression) + def __init__(self, units='inch', zero_suppression='trailing'): self.units = units.lower() self.zero_suppression = zero_suppression @@ -217,6 +286,10 @@ class UnitStmt(ExcellonStatement): class IncrementalModeStmt(ExcellonStatement): + @classmethod + def from_excellon(cls, line): + return cls('off') if 'OFF' in line else cls('on') + def __init__(self, mode='off'): if mode.lower() not in ['on', 'off']: raise ValueError('Mode may be "on" or "off") @@ -228,16 +301,33 @@ class IncrementalModeStmt(ExcellonStatement): class VersionStmt(ExcellonStatement): + @classmethod + def from_excellon(cls, line): + version = int(line.split(',')[1]) + return cls(version) + def __init__(self, version=1): - self.version = int(version) + version = int(version) + if version not in [1, 2]: + raise ValueError('Valid versions are 1 or 2' + self.version = version def to_excellon(self): return 'VER,%d' % self.version class FormatStmt(ExcellonStatement): + + @classmethod + def from_excellon(cls, line): + fmt = int(line.split(',')[1]) + return cls(fmt) + def __init__(self, format=1): - self.format = int(format) + format = int(format) + if format not in [1, 2]: + raise ValueError('Valid formats are 1 or 2') + self.format = format def to_excellon(self): return 'FMAT,%d' % self.format @@ -245,6 +335,11 @@ class FormatStmt(ExcellonStatement): class LinkToolStmt(ExcellonStatement): + @classmethod + def from_excellon(cls, line): + linked = [int(tool) for tool in line.strip().split('/')] + return cls(linked) + def __init__(self, linked_tools): self.linked_tools = [int(x) for x in linked_tools] @@ -253,14 +348,29 @@ class LinkToolStmt(ExcellonStatement): class MeasuringModeStmt(ExcellonStatement): - + + @classmethod + def from_excellon(cls, line): + return cls('inch') if 'M72' in line else cls('metric') + def __init__(self, units='inch'): units = units.lower() if units not in ['inch', 'metric']: raise ValueError('units must be "inch" or "metric"') self.units = units - + def to_excellon(self): return 'M72' if self.units == 'inch' else 'M71' +class UnknownStmt(ExcellonStatement): + + @classmethod + def from_excellon(cls, line): + return cls(line) + + def __init__(self, stmt): + self.stmt = stmt + + def to_excellon(self): + return self.stmt diff --git a/gerber/gerber.py b/gerber/gerber.py index 9ad5dc9..0278b0d 100644 --- a/gerber/gerber.py +++ b/gerber/gerber.py @@ -68,8 +68,7 @@ class GerberFile(CncFile): """ def __init__(self, statements, settings, filename=None): - super(GerberFile, self).__init__(settings, filename) - self.statements = statements + super(GerberFile, self).__init__(statements, settings, filename) @property def comments(self): -- cgit