基于地形图的三维地形图的研究

摘要

With the rapid development of mapping technology,the studies on the applications of the geographic information systems（GIS） and remote sensing（RS） have gradually conducted in depth,enabling a variety of diverse information become a space-based organic combination.There are increasing requirements to deal with problems from three-dimensional space.On the basis of topographic maps,some graphical models have developed to express the three-dimensional information.They have various names and different features,such as three-dimensional electronic sand table,three-dimensional digital map,three-dimensional electronic map,and three-dimensional landscape plan,and so on.However,there is not any kind of graphical model which can inherit all of the traditional two-dimensional topographic information and add the correspondent three-dimensional information at the same time.This paper focuses on the construction of three-dimensional topographic map on the basis of topographic map.%随着测绘技术的迅猛发展,地理信息系统（GIS）和遥感（RS）的应用研究日趋深入,使得各种丰富多样的信息能够以空间为基础有机地结合起来,人们越来越多地要求从三维空间来处理问题。在地形图基础之上发展起来一些用于表达三维空间信息的图形模式。这些图形模式名称不一,各具特色,有三维电子沙盘、三维数字地图、三维电子地图、三维景观图等等。但是没有任何一种图形模式做到了将传统的二维地形图信息完整继承,并且在其基础之上添加相应的三维信息。本文着重研究基于地形图的三维地形图建设。