怎样正确定义vision 中的坐标系

vanstrong

小弟采用labview开发零件的视觉检测，由于检测的零件运动，所以必须定义参考坐标系，但是我发现在labview中，只能定义相互垂直的坐标系，而me检测的零件如下图所示 ，很难定义相对稳定的坐标系，即使使用vision>>machine visoin>>IMAQ find coodsys，定义的坐标系也很难稳定，总是跳动。请教大虾指点！！！
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