您要查找的是不是：
- The flow direction algorithm based on gridded DEM is an important component of digital terrain analysis. 基于栅格DEM的流向算法是数字地形分析的重要研究内容之一。
- The conversion between Grid DEMs and TINs is of critical significance in digital terrain analysis which is a key work in the watershed planning of the loess plateau region. 栅格DEM与TIN是DEM表面建模主要的2种方法。 应用DEM进行地形分析时,栅格DEM与TIN的相互转换非常必要,但在转换中所产生的误差直接或间接地影响到分析结果的准确性。
- In this dissertation, focused on the aerial image matching based terrain data acquisition and DEMs based digital terrain analysis, some theory, approach and key technical problem of digital terrain modeling are discussed. 本论文围绕着数字地形模拟的相关理论方法和关键技术问题进行了讨论，其中重点研究了基于航空遥感影像的地形数据获取和基于DEM的数字地形分析问题。
- Digital Terrain Analysis (DTA) is a topographical information analysis technology to calculate and extract terrain surface parameters and morphological features on Digital Elevation Model(DEM), and the application of DEM is extended by DTA. 数字地形分析(Digital Terrain Analysis，DTA)是在数字高程模型DEM上进行地形属性计算和特征提取的数字地形信息处理技术，是DEM应用范围的拓广和延伸。
- A Review on the Scale Issue in DEMs and Digital Terrain Analysis DEM及数字地形分析中尺度问题研究综述
- Separated Mini-Watersheds Based on Digital Terrain Analysis Technology 基于数字地形分析的小流域分割技术
- APPLICATION OF DIGITAL TERRAIN ANALYSIS TECHNOLOGY FOR DISTRIBUTED HYDROLOGICAL MODELLING 数字地形分析技术在分布式水文建模中的应用
- Application of digital terrain analysis technology for watershed hydrological modeling 数字地形分析技术在流域水文建模中的应用
- Mapping Potential Breeding Habitats of Malaria Transmitting Mosquitoes based on Digital Terrain Analysis 基于数字地形分析的疟疾传播蚊子潜在栖息繁殖地制图
- the DEMs based digital terrain analysis approaches are investigated, among which the emphasis is put on the topographic structure extraction based on grid DEMs. 对基于DEM的数字地形分析问题进行研究，其中对基于规则格网DEM的地形结构线的提取问题进行了重点研究。
- This paper discussed digital terrain model (DTM) . 论述了地面数字模型DTM(Digital terrain model).
- digital terrain analysis 数字地形分析
- Digital Terrain Modeling (DTM) is an important utility of GIS. 数字地形模型是GIS的一个重要应用。
- The base data of the quantitative analysis about land feature and the automatic drawing of topographic map is furnished by Digital Terrain Model(DTM),it is the basics of Geography information System(GIS). 数字地面模型为多种地形特征的定量分析与地形图的自动化绘制提供了基本数据，它是建立土建CAD和地理信息系统的基础。
- The settlement isoline map, based on subsidence prediction in mining area, is difficult to be directly applied to land planning in mining area and MGIS analysis due to its different data structure from digital terrain map. 摘要基于开采沉陷预计的采煤区下沉等值线图不便于直观地反映矿区地形的动态变化，其图形数据结构与数字地形图存在差异，难以直接用于规划设计和矿区GIS分析。
- Image matching is the key stage for Digital Terrain Model(DTM) automatical aquisition using with digital images. 利用数字影像自动提取数字地形模型(DTM)的关键是影像匹配。
- Using C++ language and OpenGL Graphic Library to implement the algorithm of 3D terrain analysis and terrain visualization, and this algorithm has become part of vega3DGIS. 使用C++语言和OpenGL图形库编写了有关三维地形分析，三维地形可视化的算法，并为Vega3DGIS所采纳。
- The constrained digital terrain model is displayed in AutoCAD which is developed by VC++6.0 and ARX. 通过使用VC++6.;0和ARX开发工具;在AutoCAD环境下实现了约束DTM的建立和显示。
- The main content of Geomorphology research is terrain analysis, it includes such as height slice analysis, slope analysis, gully density analysis and so on. 地貌学研究的重要内容之一是地形分析，主要包括高程剖面分析，坡度、坡向分析以及沟壑密度、切割深度、起伏度、流域分析等。
- Digital terrain model (DTM) is an important component of a resource information system. 数字地形模型(DTM)是资源信息系统中的重要组成部分。
