该文介绍了虚拟现实系统的特征、分类和软件、硬件结构等相关技术以及基于微机系统开发的虚拟电子沙盘系统。
This paper introduces characteristics? Classification of virtual reality; its interactive technology of the software and hardware's structure and virtual topography system based on computer's system.
然后提出并实现面向土地利用规划的电子沙盘制作的技术方案，详细介绍了数据处理、地形模拟与要素匹配等关键技术。
The key technique of the technical scheme for electronic sand table, such as data processing, terrain modeling, feature matching, is introduced in details in this paper.
海拉瓦系统可以对最新的航空摄影、卫星图片进行全数字化信息处理，形成完整的电子地图沙盘。
Through the processing of the aerophotography and the satellitic picture, the Helawa system can output the electronic map.
海拉瓦系统可以对最新的航空摄影、卫星图片进行全数字化信息处理，形成完整的电子地图沙盘。
Through the processing of the aerophotography and the satellitic picture, the Helawa system can output the electronic map.
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