表面模型缓冲区分析方法

被引:10
作者
李楠 [1 ,2 ]
肖克炎 [1 ,3 ]
阴江宁 [1 ]
范建福 [1 ]
王琨 [3 ]
机构
[1] 中国地质科学院矿产资源研究所国土资源部成矿作用与资源评价重点实验室
[2] Centre for Exploration Targeting, School of Earth and Environment, The University of Western
关键词
空间填充; 曲面重构; 曲面光滑; 缓冲区分析; 欧氏距离场;
D O I
暂无
中图分类号
P208 [测绘数据库与信息系统]; TP391.7 [机器辅助技术];
学科分类号
070503 ; 081603 ; 0818 ; 081802 ;
摘要
三维缓冲区分析是三维空间分析的基本功能之一,也是三维地理信息系统的重要组成部分.针对目前空间对象表面模型的缓冲区分析算法尚不完善的问题,提出基于空间填充思想的三维缓冲区分析方法.首先将表面模型离散化;然后基于带符号的欧氏距离算法和缓冲距筛选体素;再应用隐式曲面重构算法构建三维缓冲区参考曲面;最后从缓冲控制点和参考缓冲曲面出发,计算得到光滑,精确的缓冲区分析结果.从方法复杂度、可视化效果、缓冲区等距性等方面将文中方法与栅格模型缓冲区方法进行对比的结果表明,该方法具有较强的通用性与扩展性,同时能够处理空间对象的内,外缓冲区等复杂情况.
引用
收藏
页码:1625 / 1636
页数:12
相关论文
共 26 条
  • [11] Constrained Delaunay tetrahedral mesh generation and refinement[J] . Hang Si.Finite Elements in Analysis & Design . 2009 (1)
  • [12] Geological modelling from field data and geological knowledge[J] . P. Calcagno,J.P. Chilès,G. Courrioux,A. Guillen.Physics of the Earth and Planetary Interiors . 2008 (1)
  • [13] Geological modelling from field data and geological knowledge[J] . A. Guillen,Ph. Calcagno,G. Courrioux,A. Joly,P. Ledru.Physics of the Earth and Planetary Interiors . 2008 (1)
  • [14] 3D-reconstruction of complex geological interfaces from irregularly distributed and noisy point data
    Frank, Tobias
    Tertois, Anne-Laure
    Mallet, Jean-Laurent
    [J]. COMPUTERS & GEOSCIENCES, 2007, 33 (07) : 932 - 943
  • [15] Tetrahedral mesh generation and optimization based on centroidal Voronoi tessellations
    Du, Q
    Wang, DS
    [J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2003, 56 (09) : 1355 - 1373
  • [16] Modelling with implicit surfaces that interpolate
    Turk, G
    O'Brien, JF
    [J]. ACM TRANSACTIONS ON GRAPHICS, 2002, 21 (04): : 855 - 873
  • [17] Modelling natural objects with α-complexes
    Gerritsen, BHM
    van der Werff, K
    Veltkamp, RC
    [J]. COMPUTER-AIDED DESIGN, 2002, 34 (12) : 881 - 897
  • [18] Silver exudation[J] . Siu-Wing Cheng,Tamal K. Dey,Herbert Edelsbrunner,Michael A. Facello,Shang-Hua Teng.Journal of the ACM (JACM) . 2000 (5)
  • [19] OPTIMIZATION STRATEGIES IN UNSTRUCTURED MESH GENERATION[J] . P. D.ZAVATTIERI,E. A.DARI,G. C.BUSCAGLIA.Int. J. Numer. Meth. Engng. . 1998 (12)
  • [20] Discrete modeling for natural objects
    Mallet, JL
    [J]. MATHEMATICAL GEOLOGY, 1997, 29 (02): : 199 - 219