@Test
public void testIntersectionOfLineWithLineSegmentWhereIntersectionIsNotPartOfLineSegment() {
Point3D p2 = new Point3D(8, 2, 6);
Point3D p3 = new Point3D(0, 9, 1);
Point3D p4 = new Point3D(5, 7, 2);
Point3D intersect;
Line3D l1 = new Line3D(p2, p3);
Line3D l2 = new Line3D(p2, p4);
Line3DSegment ls1 = new Line3DSegment(l2.getPoint(0.01), p4);
intersect = Geometry3DUtils.intersectionOfTwoLines(l1, ls1);
assertEquals(null, intersect);
}
@Test
public void testIntersectionOfLineWithLineSegmentWhereIntersectionsExists() {
Point3D p1 = new Point3D(3, 4, 5);
Point3D p2 = new Point3D(8, 2, 6);
Point3D p3 = new Point3D(0, 9, 1);
Point3D intersect;
Line3D l1 = new Line3D(p2, p3);
Line3D l2 = new Line3D(p1, p2);
Line3DSegment ls1 = new Line3DSegment(p1, l2.getPoint(3));
intersect = Geometry3DUtils.intersectionOfTwoLines(l1, ls1);
assertEquals(p2, intersect);
}