Nurbs curve/surface parameters in reverse numerical instability, is Nurbs curves/surfaces fatal shortcomings. This paper describes the parameters for the curve/surface intersection of the activities affine frame (moving affine frame, referred to as MAF) method based on the principle of MAF method proposed reverse Nurbs curve/surface parameters of a new method, which in numerical stability and efficiency were higher than all the traditional iterative method, and has been used in commercial three-dimensional CAD system GEMS 5.0.

基于活动仿射标架反求Nurbs曲线_曲面参数.caj

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