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

drawSnap() virtual bool MgSnap::drawSnap ( const MgMotion *  sender, GiGraphics *  gs  ) const pure virtual 显示捕捉提示线 在 MgCmdManagerImpl 内被实现. 这是这个函数的调用关系图: