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基于流曲线曲面的双三次非均匀B样条曲面G1混合

  • 李秀娟 ,
  • 廖文和 ,
  • 刘浩 ,
  • 何钢
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  • 1南京航空航天大学理学院,南京 210016;
    2南京航空航天大学机电学院,南京 210016

收稿日期: 1900-01-01

  修回日期: 1900-01-01

  网络出版日期: 2008-07-15

G1 continuity blending between bicubic non-uniform B-spline surfaces with stream curve and surface

  • LI Xiu-Juan ,
  • LIAO Wen-He ,
  • LIU Hao ,
  • He Gang
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  • 1 College of Science, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China;
    2 College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China

Received date: 1900-01-01

  Revised date: 1900-01-01

  Online published: 2008-07-15

摘要

在流曲线曲面造型方法中,引入非均匀细分,给出了Gaussian球面上非均匀细分的模式和计算方法,以及基于非均匀细分的流曲线曲面生成算法,研究了流曲线曲面和双三次非均匀B样条曲面G1光滑拼接的条件,并给出与两双三次非均匀B样条曲面G1混合的流曲线曲面的构造算法.

本文引用格式

李秀娟 , 廖文和 , 刘浩 , 何钢 . 基于流曲线曲面的双三次非均匀B样条曲面G1混合[J]. 中国科学院大学学报, 2008 , 25(4) : 554 -559 . DOI: 10.7523/j.issn.2095-6134.2008.4.018

Abstract

Non-uniform subdivision is introduced in streamline modeling. Expressions and calculations of non-uniform subdivision are given on Gaussian sphere. The generation approaches of stream curve and surface based on non-uniform subdivision are provided. G1 Continuity conditions between bicubic B-spline surface and stream curve and surface are studied. Furthermore, a construction means to blend bicubic B-spline surfaces with stream curve and surface is presented.
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