基于坡度坡向的地貌晕渲实现研究  

The research on realization of relief shading based on slope and aspect

作　　者：陈艳丽[1] 李少梅[1] 

机构地区：[1]解放军信息工程大学测绘学院,郑州450052

出　　处：《测绘科学》2008年第S1期181-182,共2页Science of Surveying and Mapping

基　　金：国家863计划资助项目(2007AA12Z206);国家自然科学基金资助项目(40501058;40401052)

摘　　要：本文利用规则格网DEM数据,研究基于坡度坡向的地貌晕渲制作过程。通过选择合适的坡度坡向算法、光照模型和光照插值算法,实现基于坡度坡向的地貌晕渲。This paper calculated the slope and aspect of grid point using regular grid DEM,and researched making process of re- lief shading based on slope and aspect,The research completed relief shading based on slope and aspect by choosing right algorithm of slope and aspect、lighting model and interpolation arithmetic in process.

关 键 词：地貌晕渲 坡度坡向 Gouraud明暗处理模型 线性插值 

分 类 号：P283.7[天文地球—地图制图学与地理信息工程]