SubCircle sc3 = create(Vector3D.PLUS_K, Vector3D.PLUS_I, Vector3D.PLUS_J, 1.0e-10, 5.0, 6.0);
SplitSubHyperplane<Sphere2D> split3 = sc3.split(xzPlane);
ArcsSet plus3 = (ArcsSet) ((SubCircle) split3.getPlus()).getRemainingRegion();
Assert.assertEquals(1, plus3.asList().size());
Assert.assertEquals(5.0, plus3.asList().get(0).getInf(), 1.0e-10);
Assert.assertEquals(6.0, plus3.asList().get(0).getSup(), 1.0e-10);
Assert.assertNull(split3.getMinus());
SubCircle sc4 = create(Vector3D.PLUS_J, Vector3D.PLUS_K, Vector3D.PLUS_I, 1.0e-10, 5.0, 6.0);
SplitSubHyperplane<Sphere2D> split4 = sc4.split(xzPlane);
Assert.assertEquals(Side.HYPER, sc4.side(xzPlane));