基于ArcObjects的网络三维地形场景生成

Creating 3D terrain scene on the Internet based on ArcObjects

由于网络三维地理信息系统中三维地形的生成比较复杂,目前的生成方法大多存在显示质量差、生成速度慢等方面的问题。为解决这些问题,利用ESR I公司的地理信息系统软件Arc/Info8.3提供的开发对象接口AO(ArcObjects)生成三维地形。使用网络三维建模语言VRML(V irtualRealityModeling Language)设计地形图的接口、添加交互传感器,结合Java编程技术对其进行控制。并以此建立了扎龙湿地三维洪水管理系统,实现了三维飞行漫游、三维洪水表面分析、洪水动态模拟等功能。对湿地的调洪蓄水提供决策上的支持,使洪水资源得到合理利用。

3D terrain was created with the AO（AreObjects） development object interface by ESRI Company. Then the interface of 3D terrain was designed and interaction sensor was added by Virtual Reality Modeling Language. Programming language Java was used to control it. The terrain, as well as the roaming of 3D terrain and the flood surface analysis and the flood routing simulation and so on were created on the Intemet and interaction access. The goal of the reasonable use of flood resource was achieved and it has become the important base of vivid flood routing simulation.