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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com>
import os
from functools import reduce
from gerber.cam import FileSettings
from gerber.gerber_statements import EofStmt
from gerber.excellon_statements import *
from gerber.excellon import DrillSlot, DrillHit
import gerberex.rs274x
import gerberex.excellon
import gerberex.dxf
class Composition(object):
def __init__(self, settings = None, comments = None):
self.settings = settings
self.comments = comments if comments != None else []
class GerberComposition(Composition):
APERTURE_ID_BIAS = 10
def __init__(self, settings=None, comments=None):
super(GerberComposition, self).__init__(settings, comments)
self.param_statements = []
self.aperture_macros = {}
self.apertures = []
self.drawings = []
def merge(self, file):
if isinstance(file, gerberex.rs274x.GerberFile):
self._merge_gerber(file)
elif isinstance(file, gerberex.dxf.DxfFile):
self._merge_dxf(file)
else:
raise Exception('unsupported file type')
def dump(self, path):
def statements():
for s in self.param_statements:
yield s
for k in self.aperture_macros:
yield self.aperture_macros[k]
for s in self.apertures:
yield s
for s in self.drawings:
yield s
yield EofStmt()
with open(path, 'w') as f:
for statement in statements():
f.write(statement.to_gerber(self.settings) + '\n')
def _merge_gerber(self, file):
param_statements = []
aperture_macro_map = {}
aperture_map = {}
if self.settings:
if self.settings.units == 'metric':
file.to_metric()
else:
file.to_inch()
for statement in file.statements:
if statement.type == 'COMMENT':
self.comments.append(statement.comment)
elif statement.type == 'PARAM':
if statement.param == 'AM':
name = statement.name
newname = self._register_aperture_macro(statement)
aperture_macro_map[name] = newname
elif statement.param == 'AD':
if not statement.shape in ['C', 'R', 'O']:
statement.shape = aperture_macro_map[statement.shape]
dnum = statement.d
newdnum = self._register_aperture(statement)
aperture_map[dnum] = newdnum
elif statement.param == 'LP':
self.drawings.append(statement)
else:
param_statements.append(statement)
elif statement.type in ['EOF', "DEPRECATED"]:
pass
else:
if statement.type == 'APERTURE':
statement.d = aperture_map[statement.d]
self.drawings.append(statement)
if not self.settings:
self.settings = file.settings
self.param_statements = param_statements
def _merge_dxf(self, file):
if self.settings:
if self.settings.units == 'metric':
file.to_metric()
else:
file.to_inch()
file.dcode = self._register_aperture(file.aperture)
self.drawings.append(file.statements)
if not self.settings:
self.settings = file.settings
self.param_statements = [file.header]
def _register_aperture_macro(self, statement):
name = statement.name
newname = name
offset = 0
while newname in self.aperture_macros:
offset += 1
newname = '%s_%d' % (name, offset)
statement.name = newname
self.aperture_macros[newname] = statement
return newname
def _register_aperture(self, statement):
statement.d = len(self.apertures) + self.APERTURE_ID_BIAS
self.apertures.append(statement)
return statement.d
class DrillComposition(Composition):
def __init__(self, settings=None, comments=None):
super(DrillComposition, self).__init__(settings, comments)
self.tools = []
self.hits = []
self.dxf_statements = []
def merge(self, file):
if isinstance(file, gerberex.excellon.ExcellonFileEx):
self._merge_excellon(file)
elif isinstance(file, gerberex.DxfFile):
self._merge_dxf(file)
else:
raise Exception('unsupported file type')
def dump(self, path):
def statements():
for t in self.tools:
yield ToolSelectionStmt(t.number).to_excellon(self.settings)
for h in self.hits:
if h.tool.number == t.number:
yield h.to_excellon(self.settings)
for num, statement in self.dxf_statements:
if num == t.number:
yield statement.to_excellon(self.settings)
yield EndOfProgramStmt().to_excellon()
with open(path, 'w') as f:
gerberex.excellon.write_excellon_header(f, self.settings, self.tools)
for statement in statements():
f.write(statement + '\n')
def _merge_excellon(self, file):
tool_map = {}
if not self.settings:
self.settings = file.settings
else:
if self.settings.units == 'metric':
file.to_metric()
else:
file.to_inch()
for tool in iter(file.tools.values()):
num = tool.number
tool_map[num] = self._register_tool(tool)
for hit in file.hits:
hit.tool = tool_map[hit.tool.number]
self.hits.append(hit)
def _merge_dxf(self, file):
if not self.settings:
self.settings = file.settings
else:
if self.settings.units == 'metric':
file.to_metric()
else:
file.to_inch()
tool = self._register_tool(ExcellonTool(self.settings, number=1, diameter=file.width))
self.dxf_statements.append((tool.number, file.statements))
def _register_tool(self, tool):
for existing in self.tools:
if existing.equivalent(tool):
return existing
new_tool = ExcellonTool.from_tool(tool)
new_tool.settings = self.settings
def toolnums():
for tool in self.tools:
yield tool.number
max_num = reduce(lambda x, y: x if x > y else y, toolnums(), 0)
new_tool.number = max_num + 1
self.tools.append(new_tool)
return new_tool
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