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NURBS自由型曲面延展和过渡功能的开发 被引量:1

Development for NURBS Surfaces of Continuous Extension and Bridge
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摘要 根据曲面的延展量进行曲面分割,对分割后曲面进行控制点的反射对称,得到满足G2连续的延展曲面。给出了散乱控制点的有序化的方法,有效地防止了拓展曲面产生折叠、起皱,实现了曲面延展设计的算法。 The paper presents the algorithms for NURBS surfaces of the continuous extension and bridge. The extension surface, which satisfies G^2 in continuity with the original surface,can be achieved by segmenting the original surfaces and then getting the mapping symmetric control points for each of the segmented surfaces. The method for regularly ordering the random control points effectively avoid folding and crinkling in the surfaces of extension and bridge. Programs have been developed using VC++ and OPENGL and the success- ful practical applications have also proved the implementation of the algorithms.
出处 《机械与电子》 2005年第8期6-9,共4页 Machinery & Electronics
关键词 NURBS曲面 曲面延伸 曲面过渡 算法 NURBS surface continuous extension bridge algorithm
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