The Half-Edge Tree: A compact data structure for Level-Of-Detail tetrahedral meshes

被引:0
|
作者
Danovaro, E [1 ]
De Floriani, L [1 ]
Magillo, P [1 ]
Puppo, E [1 ]
Sobrero, D [1 ]
Sokolovsky, N [1 ]
机构
[1] Univ Genoa, DISI, Genoa, Italy
关键词
D O I
10.1109/SMI.2005.47
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
We propose a new data structure for the compact encoding of a Level-Of-Detail (LOD) model of a three-dimensional scalar field based on unstructured tetrahedral meshes. Such data structure, called a Half-Edge Tree (HET), is built through the iterative application of a half-edge collapse, i.e. by contracting an edge to one of its endpoints. We also show that selective refined meshes extracted from an HET contain on average about 34 % and up to 75 % less tetrahedra than those extracted from an LOD model built through a general edge collapse.
引用
收藏
页码:332 / 337
页数:6
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