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-rw-r--r--gerber/cnc.py3
-rwxr-xr-xgerber/excellon.py96
-rw-r--r--gerber/excellon_statements.py122
-rw-r--r--gerber/gerber.py3
4 files changed, 173 insertions, 51 deletions
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 '<ExcellonTool %d: %0.3f%s dia.>' % (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):
generated by cgit (git 2.34.1) at 2024-07-10 13:49:19 +0000