The normal vector of each data point is calculated without reconstructing surface, and then realizing radius compensation with probe radius by going along normal vector.

在不需要重建曲面模型的情况下，找到每一个数据点的法矢，在该法矢方向上补偿一个球头半径实现了测头半径的三维补偿。

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Before reconstructing surface to carry on the proper compression of dataset is indispensable.

所以在重建曲面之前进行适当的数据压缩是必要的。

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This paper introduces some key technologies in reverse engineering of automobile covering panel. such as, CMM, fitting of surface, reconstructing of surface, smoothing of surface etc.

介绍了汽车覆盖件逆向工程中的若干关键技术，诸如，三座标测量技术、曲面拟合技术、曲面重构技术、曲面光顺、曲面片的拼接等技术。

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