By using view Angle based error metrics, it transformed the screen projection of static error into the view Angle with respect to the viewpoint.

算法采用基于视角的误差度量方法，将静态误差在屏幕上的投影转换为该误差相对于视点的夹角。

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Orthography of the view is based on the projection plane projection parts are the graphics.

视图是按正投影法即零件向投影面投影得到的图形。

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Projection direction and the corresponding projection plane according to the location of different view points-based view, top view and left view and so on.

按投影方向和相应投影面的位置不同，视图分为主视图、俯视图和左视图等。

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