src/Mod/PartDesign/PartDesignTests/TestPipe.py

# ***************************************************************************
# *   Copyright (c) 2011 Juergen Riegel <FreeCAD@juergen-riegel.net>        *
# *                                                                         *
# *   This program is free software; you can redistribute it and/or modify  *
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# *   GNU Library General Public License for more details.                  *
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# ***************************************************************************

import unittest

import FreeCAD
import Part
import Sketcher
import TestSketcherApp

App = FreeCAD


class TestPipe(unittest.TestCase):
    def setUp(self):
        self.Doc = FreeCAD.newDocument("PartDesignTestPipe")

    def testSimpleAdditivePipeCase(self):
        self.Body = self.Doc.addObject("PartDesign::Body", "Body")
        self.ProfileSketch = self.Doc.addObject("Sketcher::SketchObject", "ProfileSketch")
        self.Body.addObject(self.ProfileSketch)
        TestSketcherApp.CreateCircleSketch(self.ProfileSketch, (0, 0), 1)
        self.Doc.recompute()
        self.SpineSketch = self.Doc.addObject("Sketcher::SketchObject", "SpineSketch")
        self.Body.addObject(self.SpineSketch)
        self.SpineSketch.MapMode = "FlatFace"
        self.SpineSketch.AttachmentSupport = (self.Doc.XZ_Plane, [""])
        self.Doc.recompute()
        self.SpineSketch.addGeometry(
            Part.LineSegment(App.Vector(0.0, 0.0, 0), App.Vector(0, 1, 0)), False
        )
        self.SpineSketch.addConstraint(Sketcher.Constraint("Coincident", 0, 1, -1, 1))
        self.SpineSketch.addConstraint(Sketcher.Constraint("PointOnObject", 0, 2, -2))
        self.SpineSketch.addConstraint(Sketcher.Constraint("DistanceY", 0, 1, 0, 2, 1))
        self.Doc.recompute()
        self.AdditivePipe = self.Doc.addObject("PartDesign::AdditivePipe", "AdditivePipe")
        self.Body.addObject(self.AdditivePipe)
        self.AdditivePipe.Profile = self.ProfileSketch
        self.AdditivePipe.Spine = self.SpineSketch
        self.Doc.recompute()
        self.assertAlmostEqual(self.AdditivePipe.Shape.Volume, 3.14159265)

    def testSimpleSubtractivePipeCase(self):
        self.Body = self.Doc.addObject("PartDesign::Body", "Body")
        self.ProfileSketch = self.Doc.addObject("Sketcher::SketchObject", "ProfileSketch")
        self.Body.addObject(self.ProfileSketch)
        TestSketcherApp.CreateCircleSketch(self.ProfileSketch, (0, 0), 1)
        self.Doc.recompute()
        self.SpineSketch = self.Doc.addObject("Sketcher::SketchObject", "SpineSketch")
        self.Body.addObject(self.SpineSketch)
        self.SpineSketch.MapMode = "FlatFace"
        self.SpineSketch.AttachmentSupport = (self.Doc.XZ_Plane, [""])
        self.Doc.recompute()
        self.SpineSketch.addGeometry(
            Part.LineSegment(App.Vector(0.0, 0.0, 0), App.Vector(0, 1, 0)), False
        )
        self.SpineSketch.addConstraint(Sketcher.Constraint("Coincident", 0, 1, -1, 1))
        self.SpineSketch.addConstraint(Sketcher.Constraint("PointOnObject", 0, 2, -2))
        self.SpineSketch.addConstraint(Sketcher.Constraint("DistanceY", 0, 1, 0, 2, 1))
        self.Doc.recompute()
        self.PadSketch = self.Doc.addObject("Sketcher::SketchObject", "PadSketch")
        self.Body.addObject(self.PadSketch)
        TestSketcherApp.CreateRectangleSketch(self.PadSketch, (-5, -5), (10, 10))
        self.Doc.recompute()
        self.Pad = self.Doc.addObject("PartDesign::Pad", "Pad")
        self.Body.addObject(self.Pad)
        self.Pad.Profile = self.PadSketch
        self.Pad.Length = 1.0
        self.Doc.recompute()
        self.SubtractivePipe = self.Doc.addObject("PartDesign::SubtractivePipe", "SubtractivePipe")
        self.Body.addObject(self.SubtractivePipe)
        self.SubtractivePipe.Profile = self.ProfileSketch
        self.SubtractivePipe.Spine = self.SpineSketch
        self.Doc.recompute()
        self.assertAlmostEqual(self.SubtractivePipe.Shape.Volume, 100 - 3.14159265)

    def tearDown(self):
        # closing doc
        FreeCAD.closeDocument("PartDesignTestPipe")
        # print ("omit closing document for debugging")