This article introduces the MATLAB curve fitting toolbox, and provides a special application method through the test data processing of Automobile surface modeling.
介绍了MATLAB曲线拟合工具箱，并通过汽车覆盖件的曲面造型测试数据的处理，给出了具体的应用方法；
NURBS is the best representative form for curve and surface, which finds wide application in three-dimensional modeling.
NURBS曲线是目前曲线和曲面最好的描述形式，在三维造型中已得到广泛应用。
Basing on the method some examples of constraint condition in curve-surface modeling are solved, and from the examples could be learned the method well done.
在此基础上对曲线曲面造型技术中常见几种几何约束给出了较为详细的应用分析。从应用实例上看，这种方法取得了良好的效果。
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