_cmdname _cmds _drawcmd _factories _guildpt _ignoreStart _newShapeID _ptSnap _snapBase _snapHandle _snapHandleSrc _snapShapeId _snapType _startpt _subject addImageShape addImageShape cancel checkResult clearSnap CMDS displayMmToModel displayMmToModel doAction doContextAction drawPerpMark drawPerpMark drawSnap dynamicChangeEnded eraseWnd Factories findCommand freeSubject getActionDispatcher getBoundingBox getCmdSubject getCommand getCommandName getCommandName getNewShapeID getSelection getSelection getSelectionForChange getSnap getSnapOptions getSnappedHandle getSnappedPoint getSnappedPoint getSnappedType MgCmdManagerImpl registerCommand release setCommand setIgnoreStartPoint setNewShapeID setSnapOptions showInDrawing showInSelect snapPoint switchCommand unloadCommands ~MgCmdManagerImpl

getSnappedHandle() bool MgCmdManagerImpl::getSnappedHandle ( int &  shapeid, int &  handleIndex, int &  handleIndexSrc  ) const privatevirtual 得到捕捉到的图形、控制点序号、源图形上匹配的控制点序号 实现了 MgSnap. 这是这个函数的调用关系图: