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计算机工程 ›› 2007, Vol. 33 ›› Issue (23): 261-263,. doi: 10.3969/j.issn.1000-3428.2007.23.091

• 开发研究与设计技术 • 上一篇    下一篇

自由曲面光滑拼接的数值优化方法

曲学军,杨亚文,吴 江   

  1. (沈阳航空工业学院航空宇航工程学院,沈阳 110136)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-12-05 发布日期:2007-12-05

Optimized Algorithms of Smooth Joining Between Free-form Surfaces

QU Xue-jun, YANG Ya-wen, WU Jiang   

  1. (School of Aerospace Engineering, Shenyang Institute of Aeronautical Engineering, Shenyang 110136)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-12-05 Published:2007-12-05

摘要: 研究了B样条曲面的光滑拼接问题,介绍了参数曲面几何连续性的定义,提出了2种在B样条曲面间实现 光滑拼接的数值优化算法,即调整邻接曲面的公共边界曲线和调整其中一个曲面的邻近边界的控制顶点。实验结果表明,灵活使用文中的方法修改曲面外形可有效地解决曲面造型中的相关问题。

关键词: 自由曲面, 几何连续性, 光滑拼接

Abstract: This paper discusses the B-spline surfaces smooth joining technique. The definition of parameter surface geometric continuous condition is discussed. Based on above definition, two algorithms of G1 smoothly joining of B-spline surfaces are proposed. One adjusts control vertexes of common border curve, and the other adjusts control vertexes near the common border curve of one of these surfaces. The result shows that using this method flexibly can effectively resolve the relative problems in surface modeling.

Key words: free-form surfaces, geometry continuity, smooth joining

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