assertTrue("scale on x", scalingCoef.equals(new Vec3D(.3f, .3f, .3f)));
}
@Test
public void testGetScalingCoefY() {
Vec3D v = new Vec3D(.2f, .3f, .1f);
Vec3D scalingCoef = Vec3DUtils.getScalingCoef(v);
assertTrue("scale on y", scalingCoef.equals(new Vec3D(.3f, .3f, .3f)));
}