clearSnap drawPerpMark drawSnap getSnapOptions getSnappedHandle getSnappedPoint getSnappedPoint getSnappedType setIgnoreStartPoint setSnapOptions snapPoint snapPoint ~MgSnap

snapPoint() [2/2] virtual Point2d MgSnap::snapPoint ( const MgMotion *  sender, const Point2d &  orignPt, const MgShape *  shape, int  hotHandle, int  ignoreHandle = -1, const int *  ignoreids = (const int *) 0  ) pure virtual 根据当前点捕捉新的坐标 在 MgCmdManagerImpl 内被实现.