_clear _items _sid addItem clear clone copy create createItem draw equals getCount getPoint getPointCount getType hitTest isCurve isKindOf ITEMS load MgRecordShape output release save setPoint setRefID Type ~MgRecordShape

setPoint() virtual void MgRecordShape::setPoint ( int  index, const Point2d &  pt  ) virtual 设置指定序号的顶点坐标，需再调用 update() 实现了 MgBaseShape.