陈应显,王志宏
CHENYingxian,WANG Zhihong(College of Resource and Environment Engineering

• 1:辽宁工程技术大学资源与环境工程学院

摘要(Abstract)：

基于不规则四面体的三维实体建模方法具有很多优点,但在层状矿体的建模中,该方法却不能准确地描述其层状界面。根据层状矿体建模数据的特点,先将层状矿体的等高线进行等距离散化,再建立不规则四面体三维实体模型,并为该方法设计由点、面和四面体组成的逻辑模型结构。该方法用VC++.net编程得以实现,并使用内蒙某煤矿的实际数据,建立了相应的矿床三维实体模型。实践表明,通过离散化等高线后建立的层状矿体四面体模型,能够准确反映出层状矿体的层状界面,实现对层状矿体的三维实体建模。
The method of 3D solid modeling of irregular tetrahedron has many advantages,but the method can not accurately describe the layered interface in the layered ore modeling.According to the characteristics of the layered ore,the 3D sol id modeling of irregular tetrahedral was established based on equidistance discrete contour.The logical model structure of this method formed point,face and tetrahedron.The method has been realized by programming with VC++.net.A 3D solid model of irregular tetrahedron has been established by actual data of a coal mine.Practice shows that the method can establish 3D solid model and accurately describe the ore body of the layered interface.

关键词(KeyWords)： 矿床三维模型;不规则四面体;等高线离散化
3D model of deposit;irregular tetrahedron;discrete contour

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50904032);; 辽宁省教育厅科学技术研究项目(L2010177)

作者(Author): 陈应显,王志宏
CHENYingxian,WANG Zhihong(College of Resource and Environment Engineering

参考文献(References)：

• [1]李志林,朱庆.数字高程模型[M].武汉:武汉测绘科技大学出版社,2000.
• [2]MOLANAAR M.A topology for3D vector maps[J].ITC Journal,1992(1):25-33.
• [3]LI Rongxing.Date structure and application issues in3D geo-graphic information system[J].Geomatica,1994,48(3):209-244.
• [4]HOULDING S W.3D geoscience modeling:computer tech-niques for geological characterization[M].New York:Springer-Verlag,1994.
• [5]PILOUT M,TEMPFLI K,MOLENAAR M.A tetrahedron based on3D vector data model for geoinformation[C]//Advanced Geo-graphic Data Modeling.Delft:Netherlands Geodetic Commis-sion,1994:129-140.
• [6]CHEN Xiaoyong,DOIHARA T,NASU M.A workstation for three-Dimensional spatial data research[C]//The Fourth Interna-tional Symposium of L IESMARS.Wuhan:Wuhan Tech Univ Surv Mapp,1995:42-50.
• [7]韩国建,郭达志,金学林.矿体信息的八叉树存储和检索技术[J].测绘学报,1992,21(1):13-17.
• [8]张煜,白世伟.一种基于三棱柱体体元的三维地层建模方法与应用[J].中国图形图像学报,2001,6(3):285-290.
• [9]SHI Wenzhong.Ahybrid model for3D GIS[J].Geoimformatics,1996(1):400-409.
• [10]李德仁,李清泉.一种三维GIS混合数据结构研究[J].测绘学报,1997,26(2):128-133.
• [11]龚健雅,夏宗国.矢量与栅格集成的三维数据模型[J].武汉测绘科技大学学报,1997,22(1):7-15.
• [12]李建华,边馥苓.工程地质三维空间建模技术及其应用研究[J].武汉大学学报(信息科学版),2003,28(1):25-30.

文章评论(Comment)：