一种便捷的城市三维景观可视化方法  

A convenient urban landscape 3D visualization method

作　　者：张竞[1] 王结臣[1] 

机构地区：[1]南京大学地理信息科学系,南京210093

出　　处：《测绘科学》2009年第4期125-126,共2页Science of Surveying and Mapping

基　　金：国家自然科学基金(40401046);国家基础科学人才培养基金(J0630535)

摘　　要：本文提出了基于城市CAD地形图和高分辨率遥感影像的城市景观三维建模方法。利用建筑物的多边形和层数属性,在二维GIS软件中以建筑物多边形为底、层数乘以每层高度为高,生成立柱体。再把立柱体和正射影像投影到DEM上,得到城市三维景观模型。本研究以南京市新街口地区为例,实验结果表明,该方法是一条经济而高效的城市景观三维可视化途径,可广泛应用在城市GIS的相关研究中。This paper brought forward a way based on CAD data and high-resolution remote sensing image to create 3D models of city landscape. This method is used to create 3D models using polygons of the buildings as underside and the number of floors as heights in 2D GIS software. Then it put the models, orthograph and DEM together in a proper way. In a case study of Nanjing Xinjiekou, the results show that the method, which can be widely used in urban GIS-related research, is an economic and efficient urban landscape 3D visualization way.

关 键 词：GIS 可视化 三维 城市景观 

分 类 号：P282[天文地球—地图制图学与地理信息工程]