城市3维模型构建方法研究与实现  

Research and Implementation of the Construction Method of Three-Dimensional Urban Model

作　　者：李军锋[1] 胡蕊娟 张春奎[1] 滕大强 

机构地区：[1]西安市勘察测绘院,陕西西安710054 [2]西安市黄河中学,陕西西安710043

出　　处：《测绘与空间地理信息》2012年第9期77-79,82,共4页Geomatics & Spatial Information Technology

摘　　要：3维模型的构建是城市3维地理信息系统建设的核心。介绍了基于现有数据资料制作城市3维模型的工艺流程,重点研究了利用城市大比例尺3维DLG数据批量获取建筑物高度的新方法和贴图制作过程。按照上述制作工艺和方法较好地解决了大面积城市3维建模这一问题,生成的模型具有很高的精度,完全满足城市3维建模的精度要求。The construction of 3D model is the core of three -dimensional urban geographic information system. In this paper, the process flow of three - dimensional modeling based on existing data is introduced, and the new method of acquiring building height based on large -scale 3D DLG is studied. According to the process flow above, large -area construction of 3D urban model is solved properly, and the 3D model has high precision to satisfy the precision requirements of 3D model totally.

关 键 词：3维模型 工艺流程 3维DLG 纹理 精度 

分 类 号：P208[天文地球—地图制图学与地理信息工程]