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基于不规则分布数据TIN的建立与研究

发表时间:2010-08-31  浏览量:1729  下载量:730
全部作者: 张占阳
作者单位: 长安大学地测学院
摘 要: 不规则三角形网络(triangulated irregular net�work, TIN)的建立是数字高程矩阵(digital elevation model, DEM)数据处理中最常遇到的问题。主要讨论利用不同的剖分准则并采用一定的建网方法构建TIN的过程,并对一些有可能实现的算法进行深入探讨,同时阐述TIN数据的相关存储结构,得出在实际运用过程中可以视需要选择不同的剖分算法建网的结论。
关 键 词: 地理信息系统;不规则三角形网络;三角剖分准则;三角网增长算法
Title: Establishment and research of TIN based on irregular distributed data
Author: ZHANG Zhanyang
Organization: College of Geology Engineering and Geomatics, Chang'an University
Abstract: Establishing of triangulated irregular net�work (TIN) triangles is the most commonly encountered problem in digital elevation model (DEM) data processing. Here this paper mainly discusses the guidelines for different mesh network, uses a method to build a TIN, and makes a exploration and research on some possible achieved algorithms. At the same time, it sheds light on the relevant data storage structure of TIN and so on, and draws the conclusion that different algorithms can be selected for building mesh networks according to demands in pratical application.
Key words: geographic information system; triangulated irregular net�work; triangulation criteria; growth algorithm of the triangulation
发表期数: 2010年8月第16期
引用格式: 张占阳. 基于不规则分布数据TIN的建立与研究[J]. 中国科技论文在线精品论文,2010,3(16):1641-1645.
 
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