diff options
Diffstat (limited to 'gerber/ipc356.py')
| -rw-r--r-- | gerber/ipc356.py | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/gerber/ipc356.py b/gerber/ipc356.py new file mode 100644 index 0000000..2b6f1f6 --- /dev/null +++ b/gerber/ipc356.py @@ -0,0 +1,314 @@ +#! /usr/bin/env python +# -*- coding: utf-8 -*- + +# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be> +# Modified from parser.py by Paulo Henrique Silva <ph.silva@gmail.com> +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at + +# http://www.apache.org/licenses/LICENSE-2.0 + +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +import re +from .cam import FileSettings + +# Net Name Variables +_NNAME = re.compile(r'^NNAME\d+$') + +# Board Edge Coordinates +_COORD = re.compile(r'X?(?P<x>[\d\s]*)?Y?(?P<y>[\d\s]*)?') + + +def read(filename): + """ Read data from filename and return an IPC_D_356 + Parameters + ---------- + filename : string + Filename of file to parse + + Returns + ------- + file : :class:`gerber.ipc356.IPC_D_356` + An IPC_D_356 object created from the specified file. + + """ + # File object should use settings from source file by default. + return IPC_D_356.from_file(filename) + + +class IPC_D_356(object): + + @classmethod + def from_file(self, filename): + p = IPC_D_356_Parser() + return p.parse(filename) + + + def __init__(self, statements, settings): + self.statements = statements + self.units = settings.units + self.angle_units = settings.angle_units + + @property + def settings(self): + return FileSettings(units=self.units, angle_units=self.angle_units) + + @property + def comments(self): + return [record for record in self.statements + if isinstance(record, IPC356_Comment)] + + @property + def parameters(self): + return [record for record in self.statements + if isinstance(record, IPC356_Parameter)] + + @property + def test_records(self): + return [record for record in self.statements + if isinstance(record, IPC356_TestRecord)] + + @property + def nets(self): + return list(set([rec.net_name for rec in self.test_records + if rec.net_name is not None])) + + @property + def components(self): + return list(set([rec.id for rec in self.test_records + if rec.id is not None and rec.id != 'VIA'])) + + @property + def vias(self): + return [rec.id for rec in self.test_records if rec.id == 'VIA'] + + @property + def board_outline(self): + outline = [stmt for stmt in self.statements if isinstance(stmt, IPC356_BoardEdge)] + if len(outline): + return outline[0].points + else: + return None + +class IPC_D_356_Parser(object): + # TODO: Allow multi-line statements (e.g. Altium board edge) + def __init__(self): + self.units = 'inch' + self.angle_units = 'degrees' + self.statements = [] + self.nnames = {} + + @property + def settings(self): + return FileSettings(units=self.units, angle_units=self.angle_units) + + def parse(self, filename): + with open(filename, 'r') as f: + for line in f: + + if line[0] == 'C': + # Comment + self.statements.append(IPC356_Comment.from_line(line)) + + elif line[0] == 'P': + # Parameter + p = IPC356_Parameter.from_line(line) + if p.parameter == 'UNITS': + if p.value in ('CUST', 'CUST 0'): + self.units = 'inch' + self.angle_units = 'degrees' + elif p.value == 'CUST 1': + self.units = 'metric' + self.angle_units = 'degrees' + elif p.value == 'CUST 2': + self.units = 'inch' + self.angle_units = 'radians' + self.statements.append(p) + if _NNAME.match(p.parameter): + # Add to list of net name variables + self.nnames[p.parameter] = p.value + + elif line[0] == '3' and line[2] == '7': + # Test Record + record = IPC356_TestRecord.from_line(line, self.settings) + + # Substitute net name variables + net = record.net_name + if (_NNAME.match(net) and net in self.nnames.keys()): + record.net_name = self.nnames[record.net_name] + self.statements.append(record) + + elif line[0:3] == '389': + # Altium Board Edge Info + self.statements.append(IPC356_BoardEdge.from_line(line, self.settings)) + + elif line[0] == '9': + self.multiline = False + self.statements.append(IPC356_EndOfFile()) + + return IPC_D_356(self.statements, self.settings) + + +class IPC356_Comment(object): + @classmethod + def from_line(cls, line): + if line[0] != 'C': + raise ValueError('Not a valid comment statment') + comment = line[2:].strip() + return cls(comment) + + def __init__(self, comment): + self.comment = comment + + def __repr__(self): + return '<IPC-D-356 Comment: %s>' % self.comment + + +class IPC356_Parameter(object): + @classmethod + def from_line(cls, line): + if line[0] != 'P': + raise ValueError('Not a valid parameter statment') + splitline = line[2:].split() + parameter = splitline[0].strip() + value = ' '.join(splitline[1:]).strip() + return cls(parameter, value) + + def __init__(self, parameter, value): + self.parameter = parameter + self.value = value + + def __repr__(self): + return '<IPC-D-356 Parameter: %s=%s>' % (self.parameter, self.value) + + +class IPC356_TestRecord(object): + @classmethod + def from_line(cls, line, settings): + units = settings.units + angle = settings.angle_units + feature_types = {'1':'through-hole', '2': 'smt', + '3':'tooling-feature', '4':'tooling-hole'} + access = ['both', 'top', 'layer2', 'layer3', 'layer4', 'layer5', + 'layer6', 'layer7', 'bottom'] + record = {} + line = line.strip() + if line[0] != '3': + raise ValueError('Not a valid test record statment') + record['feature_type'] = feature_types[line[1]] + + end = len(line) - 1 if len(line) < 18 else 17 + record['net_name'] = line[3:end].strip() + + end = len(line) - 1 if len(line) < 27 else 26 + record['id'] = line[20:end].strip() + + end = len(line) - 1 if len(line) < 32 else 31 + record['pin'] = (line[27:end].strip() if line[27:end].strip() != '' + else None) + + record['location'] = 'middle' if line[31] == 'M' else 'end' + if line[32] == 'D': + end = len(line) - 1 if len(line) < 38 else 37 + dia = int(line[33:end].strip()) + record['hole_diameter'] = (dia * 0.0001 if units == 'inch' + else dia * 0.001) + if len(line) >= 38: + record['plated'] = (line[37] == 'P') + + if len(line) >= 40: + end = len(line) - 1 if len(line) < 42 else 41 + record['access'] = access[int(line[39:end])] + + if len(line) >= 43: + end = len(line) - 1 if len(line) < 50 else 49 + coord = int(line[42:49].strip()) + record['x_coord'] = (coord * 0.0001 if units == 'inch' + else coord * 0.001) + + if len(line) >= 51: + end = len(line) - 1 if len(line) < 58 else 57 + coord = int(line[50:57].strip()) + record['y_coord'] = (coord * 0.0001 if units == 'inch' + else coord * 0.001) + + if len(line) >= 59: + end = len(line) - 1 if len(line) < 63 else 62 + dim = line[58:62].strip() + if dim != '': + record['rect_x'] = (int(dim) * 0.0001 if units == 'inch' + else int(dim) * 0.001) + + if len(line) >= 64: + end = len(line) - 1 if len(line) < 68 else 67 + dim = line[63:67].strip() + if dim != '': + record['rect_y'] = (int(dim) * 0.0001 if units == 'inch' + else int(dim) * 0.001) + + if len(line) >= 69: + end = len(line) - 1 if len(line) < 72 else 71 + rot = line[68:71].strip() + if rot != '': + record['rect_rotation'] = (int(rot) if angle == 'degrees' + else math.degrees(rot)) + + if len(line) >= 74: + end = len(line) - 1 if len(line) < 75 else 74 + record['soldermask_info'] = line[73:74].strip() + + if len(line) >= 76: + end = len(line) - 1 if len(line < 80) else 79 + record['optional_info'] = line[75:end] + + return cls(**record) + + def __init__(self, **kwargs): + for key in kwargs: + setattr(self, key, kwargs[key]) + + def __repr__(self): + return '<IPC-D-356 Test Record: Net: %s Type: %s>' % (self.net_name, + self.feature_type) + +class IPC356_BoardEdge(object): + + @classmethod + def from_line(cls, line, settings): + scale = 0.0001 if settings.units == 'inch' else 0.001 + points = [] + x = 0 + y = 0 + coord_strings = line.strip().split()[1:] + for coord in coord_strings: + coord_dict = _COORD.match(coord).groupdict() + x = int(coord_dict['x']) if coord_dict['x'] is not '' else x + y = int(coord_dict['y']) if coord_dict['y'] is not '' else y + points.append((x * scale, y * scale)) + return cls(points) + + def __init__(self, points): + self.points = points + + def __repr__(self): + return '<IPC-D-356 Board Edge Definition>' + + + +class IPC356_EndOfFile(object): + def __init__(self): + pass + + def to_netlist(self): + return '999' + + def __repr__(self): + return '<IPC-D-356 EOF>' |