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《Science of Surveying and Mapping》 2011-05
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Display of massive discrete terrain based on NASA World Wind

HU Qing-wu,YU Fei(School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China)  
Virtual Digital Earth needs to solve the problem of a wide range of massive terrain dataset viewing and management.A pyramid cutting flowchart of discrete terrain data based on ArcMap was presented as the LOD ruler of mass terrain data organization and display in the paper.A mass and discrete terrain data pyramid cutting software was developed which could directly match the World Wind data model.Mass and discrete terrain data display efficiency and viewing effect with different grid size and different layers were analyzed.The result showed that World Wind can realize the rapid 3D visualization.
【Fund】: 国家高技术研究发展计划“863计划”(2008AA121305);; 国家自然科学基金(40901164)
【CateGory Index】: P208
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【Citations】
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