水下地形分析中基于TIN的土方量计算方法  

Algorism Based on TIN for Earthwork in Spatial Analysis of Underwater Terrain

作　　者：王丽华[1] 施一民[1] 王卫安[1] 

机构地区：[1]同济大学测量与国土信息工程系,上海200092

出　　处：《同济大学学报（自然科学版）》2004年第2期234-236,共3页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目(49971067)

摘　　要：土方量计算有多种算法.在概述了传统的基于断面的算法后,分析了其弊端所在.然后根据水下地形分析的特点,提出并研制了有关的新算法——基于不规则三角网(TIN)的直接计算法.着重介绍了该算法的原理、论证及应用等.该算法已成功应用于对长江口水下地形所进行的空间分析中,并经受了生产实践的检验.There are many algorithms of earthwork calculation. In this paper, we summarize the traditional algorithms based on profiles, analyzing the abuse of this method. According to the characteristic of underwater terrain analysis,a new algorithm is set up. We mainly introduce the theory of this algorithm directly based on TIN in the research. It has been applied in the spatial analysis of underwater terrain successfully and approved well by the application.

关 键 词：土方量计算 不规则三角网 断面算法 

分 类 号：P208[天文地球—地图制图学与地理信息工程]