304 lines
12 KiB
Python
304 lines
12 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2020-2021 Salvador E. Tropea
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# Copyright (c) 2020-2021 Instituto Nacional de Tecnología Industrial
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# License: GPL-3.0
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# Project: KiBot (formerly KiPlot)
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import re
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import os
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import requests
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import tempfile
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from subprocess import (check_output, STDOUT, CalledProcessError)
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from tempfile import NamedTemporaryFile
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from shutil import rmtree
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from .error import KiPlotConfigurationError
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from .misc import KICAD2STEP, KICAD2STEP_ERR, W_MISS3D, W_FAILDL
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from .gs import (GS)
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from .out_base import VariantOptions
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from .kicad.config import KiConf
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from .macros import macros, document, output_class # noqa: F401
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from . import log
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logger = log.get_logger(__name__)
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class STEPOptions(VariantOptions):
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def __init__(self):
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with document:
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self.metric_units = True
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""" Use metric units instead of inches """
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self._origin = 'grid'
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""" Determines the coordinates origin. Using grid the coordinates are the same as you have in the design sheet.
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The drill option uses the auxiliary reference defined by the user.
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You can define any other origin using the format 'X,Y', i.e. '3.2,-10' """
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self.no_virtual = False
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""" Used to exclude 3D models for components with 'virtual' attribute """
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self.min_distance = -1
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""" The minimum distance between points to treat them as separate ones (-1 is KiCad default: 0.01 mm) """
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self.output = GS.def_global_output
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""" Name for the generated STEP file (%i='3D' %x='step') """
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self.download = True
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""" Downloads missing 3D models from KiCad git. Only applies to models in KISYS3DMOD """
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self.kicad_3d_url = 'https://gitlab.com/kicad/libraries/kicad-packages3D/-/raw/master/'
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""" Base URL for the KiCad 3D models """
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# Temporal dir used to store the downloaded files
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self._tmp_dir = None
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super().__init__()
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self._expand_id = '3D'
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self._expand_ext = 'step'
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@property
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def origin(self):
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return self._origin
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@origin.setter
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def origin(self, val):
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if (val not in ['grid', 'drill']) and (re.match(r'[-\d\.]+\s*,\s*[-\d\.]+\s*$', val) is None):
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raise KiPlotConfigurationError('Origin must be `grid` or `drill` or `X,Y`')
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self._origin = val
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def download_model(self, url, fname):
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""" Download the 3D model from the provided URL """
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logger.debug('Downloading `{}`'.format(url))
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r = requests.get(url, allow_redirects=True)
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if r.status_code != 200:
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logger.warning(W_FAILDL+'Failed to download `{}`'.format(url))
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return None
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if self._tmp_dir is None:
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self._tmp_dir = tempfile.mkdtemp()
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logger.debug('Using `{}` as temporal dir for downloaded files'.format(self._tmp_dir))
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dest = os.path.join(self._tmp_dir, fname)
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os.makedirs(os.path.dirname(dest), exist_ok=True)
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with open(dest, 'wb') as f:
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f.write(r.content)
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return dest
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def undo_3d_models_rename(self):
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""" Restores the file name for any renamed 3D module """
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for m in GS.board.GetModules():
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# Get the model references
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models = m.Models()
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models_l = []
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while not models.empty():
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models_l.append(models.pop())
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# Fix any changed path
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replaced = self.undo_3d_models_rep.get(m.GetReference())
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for i, m3d in enumerate(models_l):
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if m3d.m_Filename in self.undo_3d_models:
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m3d.m_Filename = self.undo_3d_models[m3d.m_Filename]
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if replaced:
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m3d.m_Filename = replaced[i]
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# Push the models back
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for model in models_l:
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models.push_front(model)
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def replace_models(self, models, new_model, c):
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""" Changes the 3D model using a provided model """
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logger.debug('Changing 3D models for '+c.ref)
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# Get the model references
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models_l = []
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while not models.empty():
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models_l.append(models.pop())
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# Check if we have more than one model
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c_models = len(models_l)
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if c_models > 1:
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new_model = new_model.split(',')
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c_replace = len(new_model)
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if c_models != c_replace:
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raise KiPlotConfigurationError('Found {} models in component {}, but {} replacements provided'.
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format(c_models, c, c_replace))
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else:
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new_model = [new_model]
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# Change the models
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replaced = []
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for i, m3d in enumerate(models_l):
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replaced.append(m3d.m_Filename)
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m3d.m_Filename = new_model[i]
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self.undo_3d_models_rep[c.ref] = replaced
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# Push the models back
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for model in models_l:
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models.push_front(model)
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def download_models(self):
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""" Check we have the 3D models.
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Inform missing models.
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Try to download the missing models """
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models_replaced = False
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# Load KiCad configuration so we can expand the 3D models path
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KiConf.init(GS.pcb_file)
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# List of models we already downloaded
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downloaded = set()
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self.undo_3d_models = {}
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# Look for all the footprints
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for m in GS.board.GetModules():
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ref = m.GetReference()
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# Extract the models (the iterator returns copies)
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models = m.Models()
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models_l = []
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while not models.empty():
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models_l.append(models.pop())
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# Look for all the 3D models for this footprint
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for m3d in models_l:
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full_name = KiConf.expand_env(m3d.m_Filename)
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if not os.path.isfile(full_name):
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# Missing 3D model
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if full_name not in downloaded:
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logger.warning(W_MISS3D+'Missing 3D model for {}: `{}`'.format(ref, full_name))
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if self.download and m3d.m_Filename.startswith('${KISYS3DMOD}/'):
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# This is a model from KiCad, try to download it
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fname = m3d.m_Filename[14:]
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replace = None
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if full_name in downloaded:
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# Already downloaded
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replace = os.path.join(self._tmp_dir, fname)
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else:
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# Download the model
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url = self.kicad_3d_url+fname
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replace = self.download_model(url, fname)
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if replace:
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# Successfully downloaded
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downloaded.add(full_name)
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self.undo_3d_models[replace] = m3d.m_Filename
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# If this is a .wrl also download the .step
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if url.endswith('.wrl'):
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url = url[:-4]+'.step'
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fname = fname[:-4]+'.step'
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self.download_model(url, fname)
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if replace:
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m3d.m_Filename = replace
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models_replaced = True
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# Push the models back
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for model in models_l:
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models.push_front(model)
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return models_replaced
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def list_models(self):
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""" Get the list of 3D models """
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# Load KiCad configuration so we can expand the 3D models path
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KiConf.init(GS.pcb_file)
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models = set()
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# Look for all the footprints
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for m in GS.board.GetModules():
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# Look for all the 3D models for this footprint
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for m3d in m.Models():
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full_name = KiConf.expand_env(m3d.m_Filename)
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if os.path.isfile(full_name):
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models.add(full_name)
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return list(models)
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def save_board(self, dir):
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""" Save the PCB to a temporal file """
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with NamedTemporaryFile(mode='w', suffix='.kicad_pcb', delete=False, dir=dir) as f:
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fname = f.name
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logger.debug('Storing modified PCB to `{}`'.format(fname))
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GS.board.Save(fname)
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return fname
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def filter_components(self, dir):
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self.undo_3d_models_rep = {}
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if not self._comps:
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# No variant/filter to apply
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if self.download_models():
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# Some missing components found and we downloaded them
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# Save the fixed board
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ret = self.save_board(dir)
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# Undo the changes
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self.undo_3d_models_rename()
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return ret
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return GS.pcb_file
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comps_hash = self.get_refs_hash()
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# Remove the 3D models for not fitted components
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rem_models = []
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for m in GS.board.GetModules():
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ref = m.GetReference()
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c = comps_hash.get(ref, None)
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if c:
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# The filter/variant knows about this component
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models = m.Models()
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if c.included and not c.fitted:
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# Not fitted, remove the 3D model
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rem_m_models = []
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while not models.empty():
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rem_m_models.append(models.pop())
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rem_models.append(rem_m_models)
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else:
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# Fitted
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new_model = c.get_field_value(GS.global_3D_model_field)
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if new_model:
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# We will change the 3D model
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self.replace_models(models, new_model, c)
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self.download_models()
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fname = self.save_board(dir)
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self.undo_3d_models_rename()
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# Undo the removing
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for m in GS.board.GetModules():
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ref = m.GetReference()
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c = comps_hash.get(ref, None)
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if c and c.included and not c.fitted:
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models = m.Models()
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restore = rem_models.pop(0)
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for model in restore:
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models.push_front(model)
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return fname
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def get_targets(self, out_dir):
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return [self._parent.expand_filename(out_dir, self.output)]
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def run(self, output):
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super().run(output)
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# Make units explicit
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if self.metric_units:
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units = 'mm'
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else:
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units = 'in'
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# Base command with overwrite
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cmd = [KICAD2STEP, '-o', output, '-f']
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# Add user options
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if self.no_virtual:
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cmd.append('--no-virtual')
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if self.min_distance >= 0:
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cmd.extend(['--min-distance', "{}{}".format(self.min_distance, units)])
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if self.origin == 'drill':
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cmd.append('--drill-origin')
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elif self.origin == 'grid':
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cmd.append('--grid-origin')
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else:
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cmd.extend(['--user-origin', "{}{}".format(self.origin.replace(',', 'x'), units)])
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# The board
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board_name = self.filter_components(GS.pcb_dir)
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cmd.append(board_name)
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# Execute and inform is successful
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logger.debug('Executing: '+str(cmd))
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try:
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cmd_output = check_output(cmd, stderr=STDOUT)
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except CalledProcessError as e:
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logger.error('Failed to create Step file, error %d', e.returncode)
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if e.output:
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logger.debug('Output from command: '+e.output.decode())
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exit(KICAD2STEP_ERR)
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finally:
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# Remove the temporal PCB
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if board_name != GS.pcb_file:
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os.remove(board_name)
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# Remove the downloaded 3D models
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if self._tmp_dir:
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rmtree(self._tmp_dir)
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logger.debug('Output from command:\n'+cmd_output.decode())
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@output_class
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class STEP(BaseOutput): # noqa: F821
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""" STEP (ISO 10303-21 Clear Text Encoding of the Exchange Structure)
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Exports the PCB as a 3D model.
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This is the most common 3D format for exchange purposes.
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This output is what you get from the 'File/Export/STEP' menu in pcbnew. """
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def __init__(self):
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super().__init__()
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with document:
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self.options = STEPOptions
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""" [dict] Options for the `step` output """
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def get_dependencies(self):
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files = super().get_dependencies()
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files.extend(self.options.list_models())
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return files
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