docs: @Pure
  	@SuppressWarnings("checkstyle:magicnumber")
  	public void getScaleVector(Tuple2D<?> scale) {
  		assert scale != null : AssertMessages.notNullParameter();
  		final double[] tmpScale = new double[3];
  		final double[] tmpRot = new double[9];
  		getScaleRotate2x2(tmpScale, tmpRot);
  		scale.set(tmpScale[0], tmpScale[1]);
  	}