private void rectangularMarkModeEvent(PointerEvent event) {

		if(event.onButtonDown(MouseButton.MOUSE_BUTTON_LEFT)) {
			setStartPoint();
			temporary = true;
		}

		if(event.onButtonDown(MouseButton.MOUSE_BUTTON_RIGHT)) {
			setStartPoint();
			temporary = true;
		}

		if(event.onButtonUp(MouseButton.MOUSE_BUTTON_LEFT)||event.onButtonUp(MouseButton.MOUSE_BUTTON_RIGHT)) {

			//TODO RectangularMark
			temporary = false;
		}
	}