名称 

说明 

 

Center 

返回被标注的曲线的中点 

 

ChordPoint 

返回被标注的曲线上的点 

 

ExtArcEndAngle 

This is ExtArcEndAngle, a member of class IMxDrawDimRadial. 

 

ExtArcStartAngle 

This is ExtArcStartAngle, a member of class IMxDrawDimRadial. 

 

LeaderLength 

返回标注引线长度,此函数是过时的且总是返回0，除非在标注创建时设置了长度