Thin discrete triangular meshes
Thin discrete triangular meshes
复制标题
薄离散三角形网格
DOI:
10.1016/s0304-3975(98)00346-6
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
Philippe Nehlig
中科院分区:
文献类型:
--
作者:
R. Barneva;V. Brimkov;Philippe Nehlig
In this paper we present an approach to describe polyhedra by meshes of discrete triangles. The study is based on the theory of arithmetic discrete geometry, (J.-P. Reveillès, Géométrie discrète, calcul en nombres entiers et algorithmique, Thèse d’état, Université Louis Pasteur, Strasbourg, December 1991). As distinct from the previous investigations on this topic, the triangles we introduce are parts of the thinnest possible discrete 6-tunnel-free planes, i.e., those that are usually used in practice. Given a plane P in the space, we define a 6-tunnel-free discrete plane, called a regular plane, which appears to be the best approximation to P . Given a mesh of triangles, we propose a method to approximate any triangle by a discrete triangular patch – a portion of a regular plane, and we prove that the resulting triangular mesh is 6-tunnel-free. The properties of the approximation obtained make the suggested approach convenient for practical applications.