Function test_constraint_solver

tests/test_sketch.py:576–752

()

def test_constraint_solver():

    s1 = (
        Sketch()
        .segment((0.0, 0), (0.0, 2.0), "segment1")
        .segment((0.5, 2.5), (1.0, 1), "segment2")
        .close("segment3")
    )
    s1.constrain("segment1", "Fixed", None)
    s1.constrain("segment1", "segment2", "Coincident", None)
    s1.constrain("segment2", "segment3", "Coincident", None)
    s1.constrain("segment3", "segment1", "Coincident", None)
    s1.constrain("segment3", "segment1", "Angle", 90)
    s1.constrain("segment2", "segment3", "Angle", 180 - 45)

    s1.solve()

    assert s1._solve_status["status"] == 4

    s1.assemble()

    assert s1._faces.isValid()

    s2 = (
        Sketch()
        .arc((0.0, 0.0), (-0.5, 0.5), (0.0, 1.0), "arc1")
        .arc((0.0, 1.0), (0.5, 1.5), (1.0, 1.0), "arc2")
        .segment((1.0, 0.0), "segment1")
        .close("segment2")
    )

    s2.constrain("segment2", "Fixed", None)
    s2.constrain("segment1", "segment2", "Coincident", None)
    s2.constrain("arc2", "segment1", "Coincident", None)
    s2.constrain("segment2", "arc1", "Coincident", None)
    s2.constrain("arc1", "arc2", "Coincident", None)
    s2.constrain("segment1", "segment2", "Angle", 90)
    s2.constrain("segment2", "arc1", "Angle", 90)
    s2.constrain("arc1", "arc2", "Angle", -90)
    s2.constrain("arc2", "segment1", "Angle", 90)
    s2.constrain("segment1", "Length", 0.5)
    s2.constrain("arc1", "Length", 1.0)

    s2.solve()

    assert s2._solve_status["status"] == 4

    s2.assemble()

    assert s2._faces.isValid()

    assert s2._tags["segment1"][0].Length() == approx(0.5)
    assert s2._tags["arc1"][0].Length() == approx(1.0)

    s3 = (
        Sketch()
        .arc((0.0, 0.0), (-0.5, 0.5), (0.0, 1.0), "arc1")
        .segment((1.0, 0.0), "segment1")