AbstractSnappingController.java 文件源码

/**
 * Return the world position of the mouse event, unless snapping is activated. If that is the case, a snapped point
 * will be returned (still in world space).
 */
protected Coordinate getWorldPosition(MouseEvent<?> event) {
    Coordinate world = super.getWorldPosition(event);
    if (snappingActive) {
        return snapper.snap(world);
    }
    return world;
}