基于WPF数字地球的地理空间算法研究  

Research on Geo Spatial Algorithm Based on WPF Digital Earth

作　　者：乔保军[1] 杨伟峰[2] 赵亚萌[3] 周珂[2,3] 

机构地区：[1]河南大学软件学院,河南开封475001 [2]河南大学计算机与信息工程学院,河南开封475001 [3]中国科学院遥感与数字地球研究所,北京100010

出　　处：《河南科学》2016年第5期706-711,共6页Henan Science

基　　金：高分重大专项项目(Y4D00100GF);高分重大专项项目(Y4D0100038);中国科学院战略先导专项项目(Y1Y02230XD)

摘　　要：为在数字地球上准确地测量出线条和路径的距离,对传统的基于球面模型的地理空间算法进行了改进.并在WPF数字地球上进行三维路径可视化模拟和计算,取得很好的展示效果和测量精度.重点介绍了虚拟地球模型、瓦片金字塔模型、WPF数字地球技术和地理空间算法的对比分析和改进,最后与Google Earth地理空间测量模块作对比,证明了该改进在不降低精确度的情况下,大幅度地提高了计算性能.In order to measure the distance between the lines and the path of the digital earth,the traditional methodof geographical space distance based on the spherical surface model was improved. And on the WPF digital earth,3Dpath visualization simulation and calculation,we achieved good results and measurement accuracy. The comparisonanalysis and improvement of the virtual earth model,tile Pyramid model,WPF digital earth technology and geographicalspace algorithm were introduced. Finally,compared with the Earth Google,it was proved that the improved algorithmhas high computing performance without reducing accuracy.

关 键 词：WPF 地理空间 算法 数字地球 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]