应该可以通过在add_metrology_object_circle_measure算子中的GenParamName and GenParamValue去设置。
看帮助文档里的'point_order'是这么说的:
The parameter specifies the direction of the circular arc. For the value 'positive', the circular arc is defined between 'start_phi' and 'end_phi' in mathematically positive direction (counterclockwise). For the value 'negative', the circular arc is defined between 'start_phi' and 'end_phi' in mathematically negative direction (clockwise).