摘要
提出了一种利用数据关联表生成矩形网格等值线的算法。该算法的优点是计算效率高,避免了以往等值线追踪算法起始点选取困难、网格出口边判断复杂的问题。算法的追踪结果精度取决于等值点的计算方法,其精度是可控的。这种算法原理可以扩展应用到三角网格的等值线方法中。
A new contour generating algorithm in rectangle meshes based on a set of related tables is put forward in this paper. The strongpoint of this method is that it can not only greatly improves the computing efficiency, but avoid many problems that always encountered by traditional methods such as selection of entry point of tracing of a contour line, the judgment of the exit edge of the mesh cell. And it can control the computing precision according to the specified application. The theory of this method can also be applied for triangle meshes.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第4期66-69,共4页
Journal of Donghua University(Natural Science)
关键词
等值线
追踪
矩形网格
关联表
contour line, tracing, rectangle meshes, related tables
