...com豆丁网 地表资讯,例如:數值高层模型(Digital Elevation Models, DEM)、數值地 形高层模型(Digital Terrain Elevation Data, DTED)、与ESRI GRID档案,进行高层、坡度、 坡向的分析。
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Analyzing the storage format of DMA DTED and USGS DEM and then presenting a new digital terrain elevation data storage format. The storing and reading algorithm are also realized.
分析了DMA的DTED和USGS的DEM高程数据存储格式,比较了其异同,提出了一种高效的数字地图高程数据的存储格式并实现了存取算法。
As the data base of the GIS digital terrain analysis, digital Elevation Model (DEM) contains rich of terrain, topography and related geo-information and knowledge.
数字地形模型(DEM)包含着丰富的地形、地貌及相关的地学信息与知识,是GIS数字地形分析的数据基础。
Digital Elevation Model(DEM) is a digital modeling process which aims at terrain and physiognomy. Irregular triangulation TIN is the best model when DEM data are stored and expressed.
数字地形模型是针对地形地貌的一种数字建模,这种建模的结果通常就是一个数字高程模型(DEM)。
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