314 lines
10 KiB
Python
314 lines
10 KiB
Python
#! /usr/bin/env python
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# -*- coding: utf-8 -*-
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# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
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# Modified from parser.py by Paulo Henrique Silva <ph.silva@gmail.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import math
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import re
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from .cam import FileSettings
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# Net Name Variables
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_NNAME = re.compile(r'^NNAME\d+$')
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# Board Edge Coordinates
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_COORD = re.compile(r'X?(?P<x>[\d\s]*)?Y?(?P<y>[\d\s]*)?')
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def read(filename):
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""" Read data from filename and return an IPC_D_356
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Parameters
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----------
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filename : string
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Filename of file to parse
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Returns
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-------
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file : :class:`gerber.ipc356.IPC_D_356`
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An IPC_D_356 object created from the specified file.
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"""
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# File object should use settings from source file by default.
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return IPC_D_356.from_file(filename)
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class IPC_D_356(object):
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@classmethod
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def from_file(self, filename):
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p = IPC_D_356_Parser()
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return p.parse(filename)
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def __init__(self, statements, settings):
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self.statements = statements
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self.units = settings.units
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self.angle_units = settings.angle_units
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@property
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def settings(self):
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return FileSettings(units=self.units, angle_units=self.angle_units)
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@property
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def comments(self):
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return [record for record in self.statements
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if isinstance(record, IPC356_Comment)]
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@property
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def parameters(self):
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return [record for record in self.statements
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if isinstance(record, IPC356_Parameter)]
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@property
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def test_records(self):
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return [record for record in self.statements
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if isinstance(record, IPC356_TestRecord)]
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@property
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def nets(self):
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return list(set([rec.net_name for rec in self.test_records
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if rec.net_name is not None]))
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@property
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def components(self):
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return list(set([rec.id for rec in self.test_records
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if rec.id is not None and rec.id != 'VIA']))
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@property
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def vias(self):
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return [rec.id for rec in self.test_records if rec.id == 'VIA']
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@property
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def board_outline(self):
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outline = [stmt for stmt in self.statements if isinstance(stmt, IPC356_BoardEdge)]
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if len(outline):
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return outline[0].points
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else:
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return None
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class IPC_D_356_Parser(object):
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# TODO: Allow multi-line statements (e.g. Altium board edge)
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def __init__(self):
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self.units = 'inch'
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self.angle_units = 'degrees'
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self.statements = []
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self.nnames = {}
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@property
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def settings(self):
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return FileSettings(units=self.units, angle_units=self.angle_units)
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def parse(self, filename):
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with open(filename, 'r') as f:
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for line in f:
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if line[0] == 'C':
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# Comment
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self.statements.append(IPC356_Comment.from_line(line))
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elif line[0] == 'P':
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# Parameter
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p = IPC356_Parameter.from_line(line)
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if p.parameter == 'UNITS':
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if p.value in ('CUST', 'CUST 0'):
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self.units = 'inch'
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self.angle_units = 'degrees'
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elif p.value == 'CUST 1':
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self.units = 'metric'
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self.angle_units = 'degrees'
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elif p.value == 'CUST 2':
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self.units = 'inch'
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self.angle_units = 'radians'
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self.statements.append(p)
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if _NNAME.match(p.parameter):
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# Add to list of net name variables
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self.nnames[p.parameter] = p.value
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elif line[0] == '3' and line[2] == '7':
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# Test Record
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record = IPC356_TestRecord.from_line(line, self.settings)
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# Substitute net name variables
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net = record.net_name
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if (_NNAME.match(net) and net in self.nnames.keys()):
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record.net_name = self.nnames[record.net_name]
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self.statements.append(record)
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elif line[0:3] == '389':
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# Altium Board Edge Info
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self.statements.append(IPC356_BoardEdge.from_line(line, self.settings))
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elif line[0] == '9':
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self.multiline = False
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self.statements.append(IPC356_EndOfFile())
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return IPC_D_356(self.statements, self.settings)
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class IPC356_Comment(object):
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@classmethod
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def from_line(cls, line):
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if line[0] != 'C':
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raise ValueError('Not a valid comment statment')
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comment = line[2:].strip()
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return cls(comment)
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def __init__(self, comment):
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self.comment = comment
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def __repr__(self):
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return '<IPC-D-356 Comment: %s>' % self.comment
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class IPC356_Parameter(object):
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@classmethod
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def from_line(cls, line):
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if line[0] != 'P':
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raise ValueError('Not a valid parameter statment')
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splitline = line[2:].split()
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parameter = splitline[0].strip()
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value = ' '.join(splitline[1:]).strip()
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return cls(parameter, value)
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def __init__(self, parameter, value):
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self.parameter = parameter
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self.value = value
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def __repr__(self):
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return '<IPC-D-356 Parameter: %s=%s>' % (self.parameter, self.value)
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class IPC356_TestRecord(object):
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@classmethod
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def from_line(cls, line, settings):
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units = settings.units
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angle = settings.angle_units
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feature_types = {'1':'through-hole', '2': 'smt',
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'3':'tooling-feature', '4':'tooling-hole'}
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access = ['both', 'top', 'layer2', 'layer3', 'layer4', 'layer5',
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'layer6', 'layer7', 'bottom']
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record = {}
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line = line.strip()
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if line[0] != '3':
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raise ValueError('Not a valid test record statment')
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record['feature_type'] = feature_types[line[1]]
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end = len(line) - 1 if len(line) < 18 else 17
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record['net_name'] = line[3:end].strip()
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end = len(line) - 1 if len(line) < 27 else 26
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record['id'] = line[20:end].strip()
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end = len(line) - 1 if len(line) < 32 else 31
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record['pin'] = (line[27:end].strip() if line[27:end].strip() != ''
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else None)
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record['location'] = 'middle' if line[31] == 'M' else 'end'
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if line[32] == 'D':
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end = len(line) - 1 if len(line) < 38 else 37
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dia = int(line[33:end].strip())
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record['hole_diameter'] = (dia * 0.0001 if units == 'inch'
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else dia * 0.001)
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if len(line) >= 38:
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record['plated'] = (line[37] == 'P')
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if len(line) >= 40:
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end = len(line) - 1 if len(line) < 42 else 41
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record['access'] = access[int(line[39:end])]
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if len(line) >= 43:
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end = len(line) - 1 if len(line) < 50 else 49
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coord = int(line[42:49].strip())
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record['x_coord'] = (coord * 0.0001 if units == 'inch'
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else coord * 0.001)
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if len(line) >= 51:
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end = len(line) - 1 if len(line) < 58 else 57
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coord = int(line[50:57].strip())
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record['y_coord'] = (coord * 0.0001 if units == 'inch'
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else coord * 0.001)
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if len(line) >= 59:
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end = len(line) - 1 if len(line) < 63 else 62
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dim = line[58:62].strip()
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if dim != '':
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record['rect_x'] = (int(dim) * 0.0001 if units == 'inch'
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else int(dim) * 0.001)
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if len(line) >= 64:
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end = len(line) - 1 if len(line) < 68 else 67
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dim = line[63:67].strip()
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if dim != '':
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record['rect_y'] = (int(dim) * 0.0001 if units == 'inch'
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else int(dim) * 0.001)
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if len(line) >= 69:
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end = len(line) - 1 if len(line) < 72 else 71
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rot = line[68:71].strip()
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if rot != '':
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record['rect_rotation'] = (int(rot) if angle == 'degrees'
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else math.degrees(rot))
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if len(line) >= 74:
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end = len(line) - 1 if len(line) < 75 else 74
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record['soldermask_info'] = line[73:74].strip()
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if len(line) >= 76:
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end = len(line) - 1 if len(line < 80) else 79
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record['optional_info'] = line[75:end]
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return cls(**record)
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def __init__(self, **kwargs):
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for key in kwargs:
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setattr(self, key, kwargs[key])
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def __repr__(self):
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return '<IPC-D-356 Test Record: Net: %s Type: %s>' % (self.net_name,
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self.feature_type)
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class IPC356_BoardEdge(object):
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@classmethod
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def from_line(cls, line, settings):
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scale = 0.0001 if settings.units == 'inch' else 0.001
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points = []
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x = 0
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y = 0
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coord_strings = line.strip().split()[1:]
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for coord in coord_strings:
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coord_dict = _COORD.match(coord).groupdict()
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x = int(coord_dict['x']) if coord_dict['x'] is not '' else x
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y = int(coord_dict['y']) if coord_dict['y'] is not '' else y
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points.append((x * scale, y * scale))
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return cls(points)
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def __init__(self, points):
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self.points = points
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def __repr__(self):
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return '<IPC-D-356 Board Edge Definition>'
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class IPC356_EndOfFile(object):
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def __init__(self):
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pass
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def to_netlist(self):
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return '999'
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def __repr__(self):
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return '<IPC-D-356 EOF>'
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