_getHandleCount _getHandlePoint _getHandleType _hitTestBox _isHandleFixed _load _output _points _save _setHandlePoint _subtype angle center endPoint getPoints getSubType isBeeline isRayline length setBeeline setEndPoint setRayline setStartPoint startPoint

setRayline() void MgLine::setRayline ( bool  ray ) 设置是否为射线 这是这个函数的调用关系图: