1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
#! /usr/bin/env python
# -*- coding: utf-8 -*-
# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
#
# 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 os
import re
from collections import namedtuple
from .excellon import ExcellonFile
from .ipc356 import IPC_D_356
Hint = namedtuple('Hint', 'layer ext name')
hints = [
Hint(layer='top',
ext=['gtl', 'cmp', 'top', ],
name=['art01', 'top', 'GTL', 'layer1', 'soldcom', 'comp', ]
),
Hint(layer='bottom',
ext=['gbl', 'sld', 'bot', 'sol', 'bottom', ],
name=['art02', 'bottom', 'bot', 'GBL', 'layer2', 'soldsold', ]
),
Hint(layer='internal',
ext=['in', 'gt1', 'gt2', 'gt3', 'gt4', 'gt5', 'gt6', 'g1',
'g2', 'g3', 'g4', 'g5', 'g6', ],
name=['art', 'internal', 'pgp', 'pwr', 'gp1', 'gp2', 'gp3', 'gp4',
'gt5', 'gp6', 'gnd', 'ground', ]
),
Hint(layer='topsilk',
ext=['gto', 'sst', 'plc', 'ts', 'skt', 'topsilk', ],
name=['sst01', 'topsilk', 'silk', 'slk', 'sst', ]
),
Hint(layer='bottomsilk',
ext=['gbo', 'ssb', 'pls', 'bs', 'skb', 'bottomsilk', ],
name=['bsilk', 'ssb', 'botsilk', ]
),
Hint(layer='topmask',
ext=['gts', 'stc', 'tmk', 'smt', 'tr', 'topmask', ],
name=['sm01', 'cmask', 'tmask', 'mask1', 'maskcom', 'topmask',
'mst', ]
),
Hint(layer='bottommask',
ext=['gbs', 'sts', 'bmk', 'smb', 'br', 'bottommask', ],
name=['sm', 'bmask', 'mask2', 'masksold', 'botmask', 'msb', ]
),
Hint(layer='toppaste',
ext=['gtp', 'tm', 'toppaste', ],
name=['sp01', 'toppaste', 'pst']
),
Hint(layer='bottompaste',
ext=['gbp', 'bm', 'bottompaste', ],
name=['sp02', 'botpaste', 'psb']
),
Hint(layer='outline',
ext=['gko', 'outline', ],
name=['BDR', 'border', 'out', ]
),
Hint(layer='ipc_netlist',
ext=['ipc'],
name=[],
),
]
def guess_layer_class(filename):
try:
directory, name = os.path.split(filename)
name, ext = os.path.splitext(name.lower())
for hint in hints:
patterns = [r'^(\w*[.-])*{}([.-]\w*)?$'.format(x) for x in hint.name]
if ext[1:] in hint.ext or any(re.findall(p, name, re.IGNORECASE) for p in patterns):
return hint.layer
except:
pass
return 'unknown'
def sort_layers(layers):
layer_order = ['outline', 'toppaste', 'topsilk', 'topmask', 'top',
'internal', 'bottom', 'bottommask', 'bottomsilk',
'bottompaste', 'drill', ]
output = []
drill_layers = [layer for layer in layers if layer.layer_class == 'drill']
internal_layers = list(sorted([layer for layer in layers
if layer.layer_class == 'internal']))
for layer_class in layer_order:
if layer_class == 'internal':
output += internal_layers
elif layer_class == 'drill':
output += drill_layers
else:
for layer in layers:
if layer.layer_class == layer_class:
output.append(layer)
return output
class PCBLayer(object):
""" Base class for PCB Layers
Parameters
----------
source : CAMFile
CAMFile representing the layer
Attributes
----------
filename : string
Source Filename
"""
@classmethod
def from_gerber(cls, camfile):
filename = camfile.filename
layer_class = guess_layer_class(filename)
if isinstance(camfile, ExcellonFile) or (layer_class == 'drill'):
return DrillLayer.from_gerber(camfile)
elif layer_class == 'internal':
return InternalLayer.from_gerber(camfile)
if isinstance(camfile, IPC_D_356):
layer_class = 'ipc_netlist'
return cls(filename, layer_class, camfile)
def __init__(self, filename=None, layer_class=None, cam_source=None, **kwargs):
super(PCBLayer, self).__init__(**kwargs)
self.filename = filename
self.layer_class = layer_class
self.cam_source = cam_source
self.surface = None
self.primitives = cam_source.primitives if cam_source is not None else []
@property
def bounds(self):
if self.cam_source is not None:
return self.cam_source.bounds
else:
return None
def __repr__(self):
return '<PCBLayer: {}>'.format(self.layer_class)
class DrillLayer(PCBLayer):
@classmethod
def from_gerber(cls, camfile):
return cls(camfile.filename, camfile)
def __init__(self, filename=None, cam_source=None, layers=None, **kwargs):
super(DrillLayer, self).__init__(filename, 'drill', cam_source, **kwargs)
self.layers = layers if layers is not None else ['top', 'bottom']
class InternalLayer(PCBLayer):
@classmethod
def from_gerber(cls, camfile):
filename = camfile.filename
try:
order = int(re.search(r'\d+', filename).group())
except:
order = 0
return cls(filename, camfile, order)
def __init__(self, filename=None, cam_source=None, order=0, **kwargs):
super(InternalLayer, self).__init__(filename, 'internal', cam_source, **kwargs)
self.order = order
def __eq__(self, other):
if not hasattr(other, 'order'):
raise TypeError()
return (self.order == other.order)
def __ne__(self, other):
if not hasattr(other, 'order'):
raise TypeError()
return (self.order != other.order)
def __gt__(self, other):
if not hasattr(other, 'order'):
raise TypeError()
return (self.order > other.order)
def __lt__(self, other):
if not hasattr(other, 'order'):
raise TypeError()
return (self.order < other.order)
def __ge__(self, other):
if not hasattr(other, 'order'):
raise TypeError()
return (self.order >= other.order)
def __le__(self, other):
if not hasattr(other, 'order'):
raise TypeError()
return (self.order <= other.order)
class LayerSet(object):
def __init__(self, name, layers, **kwargs):
super(LayerSet, self).__init__(**kwargs)
self.name = name
self.layers = list(layers)
def __len__(self):
return len(self.layers)
def __getitem__(self, item):
return self.layers[item]
def to_render(self):
return self.layers
def apply_theme(self, theme):
pass
|
