一种大范围真实地形场景构建技术与其应用  

A Large-range Real Terrain Scene ConstructionTechnology and Application

作　　者：庄春晓[1] 王仕祥 王力涛[1] ZHUANG Chunxiao;WANG Shixiang;WANG Litao(Tianjin Institute of Geotechnical Investigation Surveying,Tianjin 300110,China;Hubei Provincial Academy of Building Research and Design,Wuhan 430071 China)

机构地区：[1]天津市勘察院,天津300110 [2]湖北省建筑科学研究设计院,湖北武汉430071

出　　处：《测绘与空间地理信息》2020年第5期96-98,102,共4页Geomatics & Spatial Information Technology

摘　　要：提出了一种大范围真实地形三维场景的构建技术,很好地弥补了SketchUp不适宜建立大范围地形模型和容易缺失纹理信息的缺陷。并以三峡水电站周边地区40 km^2区域作为研究对象,以该地区30 m精度的DEM和卫星影像图为基础数据,结合使用WorldMachine、SketchUp、ArcGIS等多种软件,快速建立大范围地形和地面要素的三维表达,并将模型导入SketchUp中进行浏览,以及通过Cesium开源框架实现对三峡水电站周边地区的三维场景动态漫游,为进一步的GIS二次开发提供模型数据支持。This paper presents a 3D scene construction technique for building large-range real terrain scenes,which overcomes the disadvantages of SketchUp such as unsuitable for building large-rang terrain models and missing texture information.This paper takes 40 square kilometers area and surrounding areas in the three gorges hydropower station as the research object.Taking the DEM of 30 meters accuracy and satellite images as basic data,we use a variety of software such as WorldMachine,SketchUp,and ArcGIS to quickly built a large range of terrain and ground elements in three-dimensional demonstration.The models are imported into SketchUp to browse surrounding areas in the three gorges hydropower station,and dynamic 3D scene roaming is achieved by Cesium open source framework.The results provide data model support for further GIS secondary development.

关 键 词：SKETCHUP CESIUM 3DGIS 虚拟仿真 

分 类 号：P208[天文地球—地图制图学与地理信息工程]