FreeCAD

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import FreeCAD as App
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import Part
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import unittest
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class BRepTests(unittest.TestCase):
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    def testProject(self):
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        """
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        This is a unit test for PR #13507
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        """
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        num = 18
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        alt = [0, 1] * num
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        pts = [App.Vector(i, alt[i], 0) for i in range(num)]
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        bsc = Part.BSplineCurve()
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        bsc.buildFromPoles(pts, False, 1)
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        edge = bsc.toShape()
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        rts = Part.RectangularTrimmedSurface(Part.Plane(), -50, 50, -50, 50)
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        plane_shape = rts.toShape()
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        proj = plane_shape.project([edge])
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        self.assertFalse(proj.isNull())
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        self.assertEqual(len(proj.Edges), 1)
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    def testEdgeSplitFace(self):
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        coords2d = [(0.5, -0.5), (1.0, -0.5), (1.0, 0.5), (0.5, 0.5)]
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        pts2d = [App.Base.Vector2d(u, v) for u, v in coords2d]
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        pts2d.append(pts2d[0])
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        sphere = Part.Sphere()
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        edges = []
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        for i in range(1, len(pts2d)):
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            ls = Part.Geom2d.Line2dSegment(pts2d[i - 1], pts2d[i])
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            edges.append(ls.toShape(sphere))
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        split = edges[0].split(0.25)
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        new_edges = split.Edges + edges[1:]
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        wire = Part.Wire(new_edges)
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        face = Part.Face(wire, "Part::FaceMakerSimple")
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        self.assertTrue(face.isValid())
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    def testEdgeSplitReplace(self):
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        cyl = Part.makeCylinder(2, 5)
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        e1 = cyl.Edge3
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        split = e1.split([1.0, 2.0])
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        newcyl = cyl.replaceShape([(e1, split), (cyl.Vertex2, split.Vertex1)])
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        self.assertTrue(newcyl.isValid())
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