Establishment of digital terrain model of GIS and its application;
GIS数字地形模型的建立及应用研究
The analysis of inter-visibility on digital terrain model has been broadly applied to many fields.
数字地形模型的地形通视性分析有着广泛的应用,对TIN地形模型上两点间的通视性算法进行了研究、改进与实现。
From the characteristics of mass terrain data in a railway location system, a practical fast algorithm for strip digital terrain model (S DTM) generation was proposed based on the constraint Delaunay TIN (triangulated irregular network).
该方法已成功地用于“虚拟环境选线系统”的开发,通过几段实际线路的应用,证明了用此方法建立连续带状数字地形模型的有效性和可靠性。
The paper includes the way of getting three-dimensional position of measure points from vector elevation-isovation map along expressway to build DEM.
介绍了运用ArcGIS从高速公路沿线矢量地形图中提取测量点的三维空间坐标,在Civil 3D中建立三维数字地形模型的方法。
For understanding the internal mechanism of correlation gravity anomaly and DEM are decomposed by wavelet tranformation.
为深入认识高程与重力异常相关性的内在机制,利用小波变换信号分解特性,研究了重力异常和相应数字地形模型(DEM)在不同小波尺度上的统计相关性,由相关系数、乘常数、加常数的变化特点,得出传统意义上重力异常与高程的相关,实际上表现为二者小波变换小尺度细节的相关,这种相关不是简单孤立的关系,而是包含物理意义的平均相关。
Method of the Digital Terrain Model Establishment and DTM s Application in Forestry;
数字地形模型的建立方法及其在林业中的应用
Study on Faster Algorithm for Constructing Delaunay Triangulations DTM;
高效构建Delaunay三角网数字地形模型算法研究
The result shows that the introductions of partition index and scanning-line filling algorithm can generate DTM with fast speed,especially under the condition of massive spatial data.
规则格网 (Grid)是数字地形模型 (DTM)最常用的表示方法 ,有着广泛的应用。
A New Method for Rainfall Runoff Simulation Based On Dynamic Digital Terrain Model
基于动态数字地形模型的流域产汇流模拟方法
A STUDY WITH SETTING UP DTM BY BILINEAR FINITE ELEMENTS
双线性有限元法建立数字地形模型的研究
DTM Construction of Huaihai Institute of Technology Based on GIS:an Analysis and Practices
面向GIS的淮海工学院数字地形模型建设实践与分析
The Extraction of Topographic Patterns Based on Digital Elevation Model;
基于数字高程模型（DEM）的地形特征提取
Terrain modeling study based on the triangular grid digital elevation model
基于三角形网格的数字高程模型地形建模研究
A Simulation on the Accuracy of DEM Terrain Representation
数字高程模型地形描述精度量化模拟研究
The Modeling Example of 3D Terrain Digital Elevation Model on GIS
基于GIS三维地形的数字高程模型建模实例
Identification of DEM-Related Error Models in Terrain Aided Navigation
地形辅助导航系统中的数字地图误差模型辨识
Digital Terrain Model Based on ActiveX Automation
基于地形离散测点的数字地面模型研究
Study on the Methods of Extracting Terrain Structure Lines from DEM Data
利用地面数字高程模型数据确定地形构造线方法的研究
Research on Key Technology with DTM Three Dimensional Terrain Data
数字地面模型三维地形数据制作的关键技术研究
Research on Terrain Data Acquisition & Digital Terrain Analysis in Digital Terrain Modeling;
数字地形模拟—地形数据获取与数字地形分析研究
Application of GIS and DEM to the analysis of deposition and erosion of foreshore in the Yangtze River estuary
地理信息系统和数字高程模型在河口滩涂地形冲淤分析中的应用
Development of Ultrasonic Topographic Surveying Meter Base on DSP;
基于数字信号处理技术的河工模型超声地形仪开发
Method on Space Discretization of the Digital Land Price Model and Its Land Price Characteristics Interpretations
济南市商业地价的数字地价模型解译
Outline for the digital topographic map products
GB/T17278-1998数字地形图产品模式
Digital Terrain Modeling for River Channel Based on ArcGIS Engine
基于ArcGIS Engine的河道数字地形建模
THE APPLICATION OF DEM TO SLOPING FARMLAND INVESTIGATION
数字高程模型在坡耕地调查中的应用