基于大规模场景地形数据可视化方法研究

由于海量三维地形数据的快速增长,针对大规模地理场景浏览和交互的需求日益迫切,大规模场景可视化的效率主要取决于海量数据和内存中场景的规模.采用细节层次模型（LOD）组织地形数据可以消除场景规模过大、可视化效率不够高的问题,基于视点的动态调度方法,提高了三维地形场景渲染的效率.

Visual Topographic Data Method Based on Large-scale Scene

Since the rapid growth of Ocean measured 3D topographic data, the demand of Browse and interact of fargescale topographic scene is increasingly urgent. The efficiency of large-scale visual scene depends on the transmission of mass data and the scale of the scene. Using the level of detail （LOD） model to organize the topographic data can eliminate the disadvantages, like the overlarge-scale scene and the low efficiency of visualization. Based on the method of dynamic scheduling of the point of sight, the efficiency of render of 313 topographic scene is increased.