_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

getSnappedPoint() [1/2] int MgCmdManagerImpl::getSnappedPoint ( Point2d &  fromPt, Point2d &  toPt  ) const privatevirtual 得到捕捉到的特征点坐标和原始参考坐标、捕捉坐标 实现了 MgSnap. 这是这个函数的调用关系图: