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