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# SPDX-License-Identifier: LGPL-2.1-or-later
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# ***************************************************************************
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# * *
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# * Copyright (c) 2024 bgbsww@gmail.com *
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# * *
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# * This file is part of FreeCAD. *
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# * *
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# * FreeCAD is free software: you can redistribute it and/or modify it *
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# * under the terms of the GNU Lesser General Public License as *
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# * published by the Free Software Foundation, either version 2.1 of the *
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# * License, or (at your option) any later version. *
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# * *
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# * FreeCAD is distributed in the hope that it will be useful, but *
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# * WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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# * Lesser General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Lesser General Public *
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# * License along with FreeCAD. If not, see *
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# * <https://www.gnu.org/licenses/>. *
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# * *
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# ***************************************************************************
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""" Tests related to the Topological Naming Problem """
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import unittest
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import FreeCAD as App
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# import Part
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# import Sketcher
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import TestSketcherApp
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class TestTopologicalNamingProblem(unittest.TestCase):
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""" Tests related to the Topological Naming Problem """
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# pylint: disable=attribute-defined-outside-init
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def setUp(self):
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""" Create a document for the test suite """
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self.Doc = App.newDocument("PartDesignTestTNP")
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def testPadsOnBaseObject(self):
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""" Simple TNP test case
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By creating three Pads dependent on each other in succession, and then moving the
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middle one we can determine if the last one breaks because of a broken reference
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to the middle one. This is the essence of a TNP. Pretty much a duplicate of the
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steps at https://wiki.freecad.org/Topological_naming_problem """
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# Arrange
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self.Body = self.Doc.addObject('PartDesign::Body', 'Body')
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# Make first offset cube Pad
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self.PadSketch = self.Doc.addObject('Sketcher::SketchObject', 'SketchPad')
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self.Body.addObject(self.PadSketch)
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TestSketcherApp.CreateRectangleSketch(self.PadSketch, (0, 0), (1, 1))
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self.Doc.recompute()
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self.Pad = self.Doc.addObject("PartDesign::Pad", "Pad")
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self.Body.addObject(self.Pad)
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self.Pad.Profile = self.PadSketch
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self.Pad.Length = 1
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self.Doc.recompute()
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# Attach a second pad to the top of the first.
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self.PadSketch1 = self.Doc.addObject('Sketcher::SketchObject', 'SketchPad1')
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self.Body.addObject(self.PadSketch1)
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self.PadSketch1.MapMode = 'FlatFace'
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self.PadSketch1.AttachmentSupport = [(self.Doc.getObject('Pad'), 'Face6')]
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TestSketcherApp.CreateRectangleSketch(self.PadSketch1, (0, 0), (1, 1))
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self.Doc.recompute()
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self.Pad1 = self.Doc.addObject("PartDesign::Pad", "Pad1")
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self.Body.addObject(self.Pad1)
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self.Pad1.Profile = self.PadSketch1
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self.Pad1.Length = 1
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self.Doc.recompute()
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# Attach a third pad to the top of the second.
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self.PadSketch2 = self.Doc.addObject('Sketcher::SketchObject', 'SketchPad2')
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self.Body.addObject(self.PadSketch2)
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self.PadSketch2.MapMode = 'FlatFace'
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self.PadSketch2.AttachmentSupport = [(self.Doc.getObject('Pad1'), 'Face6')]
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TestSketcherApp.CreateRectangleSketch(self.PadSketch2, (0, 0), (1, 1))
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self.Doc.recompute()
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self.Pad2 = self.Doc.addObject("PartDesign::Pad", "Pad2")
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self.Body.addObject(self.Pad2)
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self.Pad2.Profile = self.PadSketch2
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self.Pad2.Length = 1
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self.Doc.recompute()
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# Assert everything is valid
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self.assertTrue(self.Pad.isValid())
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self.assertTrue(self.Pad1.isValid())
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self.assertTrue(self.Pad2.isValid())
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# Act
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# Move the second pad ( the sketch attachment point )
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self.PadSketch1.AttachmentOffset = App.Placement(
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App.Vector(0.5000000000, 0.0000000000, 0.0000000000),
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App.Rotation(0.0000000000, 0.0000000000, 0.0000000000))
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self.Doc.recompute()
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# Assert everything is still valid.
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self.assertTrue(self.Pad.isValid())
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self.assertTrue(self.Pad1.isValid())
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# Todo switch to actually asserting this and remove the printed lines as soon as
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# the main branch is capable of passing this test.
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# self.assertTrue(self.Pad2.isValid())
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if self.Pad2.isValid():
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print("Topological Naming Problem is not present.")
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else:
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print("TOPOLOGICAL NAMING PROBLEM IS PRESENT.")
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# def testFutureStuff(self):
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# self.Doc.getObject('Body').newObject('Sketcher::SketchObject', 'Sketch')
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# geoList = []
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# geoList.append(Part.LineSegment(App.Vector(0,0,0),App.Vector(20,0,0)))
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# geoList.append(Part.LineSegment(App.Vector(20,0,0),App.Vector(20,10,0)))
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# geoList.append(Part.LineSegment(App.Vector(20,10,0),App.Vector(10,10,0)))
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# geoList.append(Part.LineSegment(App.Vector(10,10,0),App.Vector(10,20,0)))
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# geoList.append(Part.LineSegment(App.Vector(10,20,0),App.Vector(0,20,0)))
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# geoList.append(Part.LineSegment(App.Vector(0,20,0),App.Vector(0,0,0)))
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# self.Doc.getObject('Sketch').addGeometry(geoList,False)
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# conList = []
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# conList.append(Sketcher.Constraint('Coincident',0,2,1,1))
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# conList.append(Sketcher.Constraint('Coincident',1,2,2,1))
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# conList.append(Sketcher.Constraint('Coincident',2,2,3,1))
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# conList.append(Sketcher.Constraint('Coincident',3,2,4,1))
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# conList.append(Sketcher.Constraint('Coincident',4,2,5,1))
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# conList.append(Sketcher.Constraint('Coincident',5,2,0,1))
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# conList.append(Sketcher.Constraint('Horizontal',0))
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# conList.append(Sketcher.Constraint('Horizontal',2))
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# conList.append(Sketcher.Constraint('Horizontal',4))
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# conList.append(Sketcher.Constraint('Vertical',1))
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# conList.append(Sketcher.Constraint('Vertical',3))
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# conList.append(Sketcher.Constraint('Vertical',5))
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# self.Doc.getObject('Sketch').addConstraint(conList)
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# del geoList, conList
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# self.Doc.recompute()
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# self.Doc.getObject('Body').newObject('PartDesign::Pad','Pad002')
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# self.Doc.getObject('Pad002').Length = 10
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# self.Doc.Pad002.Profile = self.Doc.Sketch
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# self.Doc.recompute()
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# self.Doc.getObject('Pad002').ReferenceAxis = (self.Doc.getObject('Sketch'),['N_Axis'])
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# self.Doc.getObject('Sketch').Visibility = False
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# self.Doc.recompute()
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def tearDown(self):
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""" Close our test document """
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App.closeDocument("PartDesignTestTNP")
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bgbsww