三维海底晕渲图绘制方法探究

Research on Methods of Drawing Three-dimensional Submarine Shaded Relief Map

根据地貌晕渲图的制作方法,结合海洋地理数据实际情况,探讨了三维海底晕渲图的制作方法;并将此方法应用于海洋基础地理数据相关项目——地理实体图集的制作。采用ArcGIS软件实现了计算机自动制作三维海底晕渲图的全过程,从最终成果可以看出平面成果图和立体成果图都富有很强立体感,这使人们对海底地形有直观认识,应用将更方便。

The article is based on the method of relief-shading map as well as combining with the actual situation of the marine geographic data. It has discussed the making method of three-dimensional submarine shaded relief map. And we apply this method to the projects related to the marine basic geographic data-atlas of the production of geographical entities. Using GIS software, the computer can automatically create the seabed shaded relief map of the three-dimensional. As can be seen from the final results ： plan and perspective view has a very strong three- dimensional sense. This enables people to have an intuitive understanding of the seabed topography, convenient application.