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《Science of Surveying and Mapping》 2013-05
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Three-dimensional visualization method of quadtree images and elevation based on World Wind

FAN Chong;YAN Lin;WU Jie;School of Geosciences and Info-Physics,Central South University;Jiuding Mapyeah Technology Co.,Ltd;  
Based on BMNG image data and SRTM elevation data,this paper taking a discussion on World Wind's quadtree-based level of detail models of managing multi-level image and elevation,to achieve fast and accurate display image maps,and overlay the corresponding position of the elevation,form the ups and downs realistic three-dimensional effect,and on this basis,increase the flight simulator and other functions. Finally it developed a separate GIS platform MyGIS 4D Desktop.
【CateGory Index】: TP391.41;P208
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