code: public void translate(Tuple2D<?> move) {
  		assert move != null : AssertMessages.notNullParameter();
  		this.curvilineTranslation += move.getX();
  		this.shiftTranslation += move.getY();
          this.isIdentity = null;
  	}
docs: Translate the coordinates. This function does not change the path.
  
  @param move where <code>x</code> is the curviline coordinate and <code>y</code> is the shift coordinate.