Vec3D c = new Vec3D(50, 50, 0);
Line3D line = new Line3D(a, b);
Vec3D isec = line.closestPointTo(c);
assertEquals(MathUtils.abs(isec.x - c.x) < 0.5, true);
c = new Vec3D(-50, -50, 0);
isec = line.closestPointTo(c);
assertEquals(isec.equals(a), true);
}
public void testHashing() {
Line3D l1 = new Line3D(new Vec3D(100, 420, -50), new Vec3D(-888, 230,