getNegativeEnd(vectorA);
assertTrue(seg4.getExtent() == 2); assertEquals(new Vector3(9, 2, 2), seg4.getNegativeEnd(null)); assertEquals(new Vector3(1, -1.5, 1), seg3.getNegativeEnd(new Vector3())); assertEquals(new Vector3(5, 2, 2), seg4.getPositiveEnd(null)); assertEquals(new Vector3(1, 3.5, 1), seg3.getPositiveEnd(new Vector3()));