kopia lustrzana https://gitlab.com/gerbolyze/gerbonara
125 wiersze
4.4 KiB
Python
125 wiersze
4.4 KiB
Python
#! /usr/bin/env python
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# -*- coding: utf-8 -*-
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# copyright 2015 Hamilton Kibbe <ham@hamiltonkib.be>
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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 os
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from .exceptions import ParseError
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from .layers import PCBLayer, sort_layers, layer_signatures
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from .common import read as gerber_read
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from .utils import listdir
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class PCB(object):
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@classmethod
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def from_directory(cls, directory, board_name=None, verbose=False):
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layers = []
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names = set()
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# Validate
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directory = os.path.abspath(directory)
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if not os.path.isdir(directory):
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raise TypeError('{} is not a directory.'.format(directory))
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# Load gerber files
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for filename in listdir(directory, True, True):
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try:
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camfile = gerber_read(os.path.join(directory, filename))
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layer = PCBLayer.from_cam(camfile)
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layers.append(layer)
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name = os.path.splitext(filename)[0]
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if len(os.path.splitext(filename)) > 1:
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_name, ext = os.path.splitext(name)
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if ext[1:] in layer_signatures(layer.layer_class):
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name = _name
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if layer.layer_class == 'drill' and 'drill' in ext:
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name = _name
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names.add(name)
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if verbose:
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print('[PCB]: Added {} layer <{}>'.format(layer.layer_class,
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filename))
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except ParseError:
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if verbose:
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print('[PCB]: Skipping file {}'.format(filename))
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except IOError:
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if verbose:
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print('[PCB]: Skipping file {}'.format(filename))
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# Try to guess board name
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if board_name is None:
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if len(names) == 1:
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board_name = names.pop()
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else:
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board_name = os.path.basename(directory)
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# Return PCB
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return cls(layers, board_name)
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def __init__(self, layers, name=None):
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self.layers = sort_layers(layers)
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self.name = name
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def __len__(self):
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return len(self.layers)
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@property
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def top_layers(self):
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board_layers = [l for l in reversed(self.layers) if l.layer_class in
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('topsilk', 'topmask', 'top')]
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drill_layers = [l for l in self.drill_layers if 'top' in l.layers]
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# Drill layer goes under soldermask for proper rendering of tented vias
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return [board_layers[0]] + drill_layers + board_layers[1:]
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@property
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def bottom_layers(self):
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board_layers = [l for l in self.layers if l.layer_class in
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('bottomsilk', 'bottommask', 'bottom')]
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drill_layers = [l for l in self.drill_layers if 'bottom' in l.layers]
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# Drill layer goes under soldermask for proper rendering of tented vias
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return [board_layers[0]] + drill_layers + board_layers[1:]
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@property
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def drill_layers(self):
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return [l for l in self.layers if l.layer_class == 'drill']
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@property
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def copper_layers(self):
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return list(reversed([layer for layer in self.layers if
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layer.layer_class in
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('top', 'bottom', 'internal')]))
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@property
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def outline_layer(self):
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for layer in self.layers:
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if layer.layer_class == 'outline':
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return layer
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@property
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def layer_count(self):
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""" Number of *COPPER* layers
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"""
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return len([l for l in self.layers if l.layer_class in
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('top', 'bottom', 'internal')])
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@property
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def board_bounds(self):
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for layer in self.layers:
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if layer.layer_class == 'outline':
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return layer.bounds
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for layer in self.layers:
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if layer.layer_class == 'top':
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return layer.bounds
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