一个三角形网格上等值线图的绘制算法  

AN IMPROVED METHOD FOR CONTOURING ON NETWORK OF TRIANGLES

作　　者：张梅华[1] 梁文康[1] 

机构地区：[1]山东大学计算机系

出　　处：《计算机辅助设计与图形学学报》1997年第3期213-217,共5页Journal of Computer-Aided Design & Computer Graphics

摘　　要：本文提出一个三角形上曲面插值的新算法，各三角形上的曲面片拼合起来得到的整体曲面是Ｃ１连续的；本文将三角曲面上等值线的绘制转化为多个三角平面上等值线的绘制，降低了算法复杂性。In this article a new algorithm of surface interpolation over a network of triangles is presented. First of all, it constructs a cubic polynomial interpolating function on each triangle. The integrated surface is smooth. And then, it divides every triangle into 15 sub -triangles. The contour map of the new network of sub -triangles replaces that of the old given network. This method reduces the complexity and quickens the speed very much. The result is satisfactory.

关 键 词：等值线 曲面插值 C连续 绘制 三角形网络 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]