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treemodel.py
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treemodel.py
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#!/usr/bin/env python
#
# Copyright 2020 Doug Blanding (dblanding@gmail.com)
#
# This file is part of cadViewer.
# The latest version of this file can be found at:
# //https://github.com/dblanding/cadviewer
#
# cadViewer is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# cadViewer is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# if not, write to the Free Software Foundation, Inc.
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
import logging
from OCC.Core.TCollection import TCollection_ExtendedString
from OCC.Core.TDF import TDF_ChildIterator
from OCC.Core.TDocStd import TDocStd_Document
from OCC.Core.XCAFApp import XCAFApp_Application_GetApplication
from OCC.Core.XCAFDoc import (XCAFDoc_DocumentTool_ShapeTool,
XCAFDoc_DocumentTool_ColorTool,
XCAFDoc_DocumentTool_LayerTool,
XCAFDoc_DocumentTool_MaterialTool)
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG) # set to DEBUG | INFO | ERROR
class TreeModel():
"""XCAF Tree Model of heirarchical CAD assembly data."""
def __init__(self, title):
# Create the application and document
doc = TDocStd_Document(TCollection_ExtendedString(title))
app = XCAFApp_Application_GetApplication()
app.NewDocument(TCollection_ExtendedString("MDTV-CAF"), doc)
self.app = app
self.doc = doc
# Initialize tools
self.shape_tool = XCAFDoc_DocumentTool_ShapeTool(doc.Main())
self.shape_tool.SetAutoNaming(True)
self.color_tool = XCAFDoc_DocumentTool_ColorTool(doc.Main())
self.layer_tool = XCAFDoc_DocumentTool_LayerTool(doc.Main())
self.l_materials = XCAFDoc_DocumentTool_MaterialTool(doc.Main())
self.allChildLabels = []
def getChildLabels(self, label):
"""Return list of child labels directly below label."""
itlbl = TDF_ChildIterator(label, True)
childlabels = []
while itlbl.More():
childlabels.append(itlbl.Value())
itlbl.Next()
return childlabels
def getAllChildLabels(self, label, first=True):
"""Return list of all child labels (recursively) below label.
This doesn't find anything at the second level down because
the component labels of root do not have children, but rather
they have references."""
print("Entering 'getAllChildLabels'")
if first:
self.allChildLabels = []
childLabels = self.getChildLabels(label)
print(f"len(childLabels) = {len(childLabels)}")
self.allChildLabels += childLabels
print(f"len(allChildLabels) = {len(self.allChildLabels)}")
for lbl in childLabels:
self.getAllChildLabels(lbl, first=False)
return self.allChildLabels
def saveDoc(self, filename):
"""Save doc to file (for educational purposes) (not working yet)
"""
logger.debug("Saving doc to file")
savefilename = TCollection_ExtendedString(filename)
self.app.SaveAs(self.doc, savefilename)