数字海洋三维地球框架下的通视分析技术

摘要

基于数字海洋三维地球框架,针对地形通视分析中典型的点对点、点对线、点对面三种情况,分析了通视分析算法及其功能实现,面向不同的业务需求,提供多样化的海洋地理信息量测服务,为用户提供空间决策支持信息,最后对三种通视算法进行了实验分析和效率分析.%Based on the digital sea 3D earth framework and aimed at the typical situations of point to point,point to line and point to area in terrain visibility analysis,this paper presents the study on visibility analysis algorithms and the realization of their functions,as well as the provision of various services of marine geographic information measurement facing various service demands,and of spatial decision support information for clients.Finally,experiment and efficiency analysises are conducted for the three visibility algorithms.