digital terrain analysis dta 数字地形分析
The analysis of terrain factors is the foundation of the digital terrain analysis based on DEM.
基于DEM的数字地形分析主要是以对地形因子的分析为基础。
At last, we discuss terrain visualization due to the practicability of digital terrain analysis.
鉴于数字地形分析的实用性，本文最后对它的可视化进行了讨论。
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。
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