FreeCAD

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import FreeCAD
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vec2 = FreeCAD.Base.Vector2d
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import Part
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import unittest
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class Geom2dTests(unittest.TestCase):
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    def test_toShape(self):
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        surf = Part.Cylinder()
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        p1 = vec2(1.0, -1.0)
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        p2 = vec2(2.0, -1.0)
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        l12 = Part.Geom2d.Line2dSegment(p1, p2)
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        e1 = l12.toShape()
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        e2 = l12.toShape(surf)
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        self.assertNotEqual(e1.curveOnSurface(0), None)
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        self.assertNotEqual(e2.curveOnSurface(0), None)
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    def test_insertKnot(self):
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        with self.assertRaises(TypeError):
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            curve = Part.Geom2d.BSplineCurve2d()
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            curve.insertKnot(0.5, 1, 0.01, 2)
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