三维电子海图自动建模技术研究

Research on Auto-modeling Technique of 3D Electronic Chart

针对采用二维电子海图表示海洋自然地理环境在三维可视化方面的不足，介绍了从二维电子海图中提取海洋地理信息建立海洋地理信息数据库，而后利用三维建模软件和视景驱动软件实现三维电子海图的可视化和大地形的数据管理的方法和步骤，最后实现实体模型的动态装载．实验结果表明该方法可以有效地应用于海底及其他地貌物的生成和管理，并为最终建立大范围的虚拟战场海洋环境提供基础．

The methods and steps for deriving ocean geographic information database from actual chart and the conversion into demanding format are introduced in the paper. It is then stored into ocean geographic information database. The 3D model database after auto-modeling of 3D model is built. Dynamic loading entity model is realized. The experimental results show that the presented methods are efficient to create and manage the seabed terrain and other physiognomy. And these methods can provide the foundation for constructing the virtual battlefield environments.