【摘要】 组件化是地理信息系统软件开发的发展方向,而三维可视化是地理信息系统的核心技术之一。文章就三维地理信息系统开发中的关键技术进行了研究,如:三维场景综合建模平台、地形模型的建模和处理、地物模型的建模和处理、地物模型与地形模型融合、基于矢量地图数据生成地表纹理、视景数据动态管理等。并运用开发的系统对河南省新密市古城寨遗址进行了模拟。更多还原

【Abstract】 Component is a direction of development in GIS software develops,but Three-dimension Visualization is one of core technologies in GIS.In this paper, essential technology in 3DGIS is researched.For example: synthesis modeling platform of 3D scenes,modeling and processing of terrain model,modeling and processing of object model,inosculation in object model and terrain model,surface texture based on the vector map data,vision data dynamical management and so on.At last the Antiquity Walled City Ruins has carried on the simulation using the development system.更多还原