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。
The terrain analytic's basic theory for many fields and implement measure can be provided by digital terrain analysis based on DEM.
研究基于DEM的数字地形分析可以为各个领域提供地形分析的基础理论及实现手段。
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。
In this dissertation, the two sides of basic terrain factor and complex terrain factor are investigated and implemented based on the basic concept of digital terrain analysis introduced.
本文在介绍数字地形分析基本概念的基础上，从基本地形因子和复杂地形因子两个方面进行了研究与实现。
Digital Elevation model (DEM) is a common model of three dimension terrain, and digital analysis is mainly based on DEM.
在三维地形有关的数字分析中，地表面积是经常用到的数据。
Digital Elevation ModeI (DEM) is a common model of three dimension terrain, and digital analysis is mainly based on DEM.
数字高程模型(DEM)是一种常用的三维地形建模数据模型，三维地形的数字分析主要是针对dem模型的。
Digital Elevation ModeI (DEM) is a common model of three dimension terrain, and digital analysis is mainly based on DEM.
数字高程模型(DEM)是一种常用的三维地形建模数据模型，三维地形的数字分析主要是针对dem模型的。
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