Study on A Reconstruction Method of Digital Elevation Model

Digital terrain model are widely used for simulation.

其中广泛使用的就有三维数字地形模型的模拟。

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A new method for digital terrain model automatical aquisition& radiative propagation method

数字地形模型自动获取的一种新方案&辐射法

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Irregular Grid Digital Terrain Model Neted by Regular Net

规则格网覆盖的非规则布点数字地形模型

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Creation of distal terrain, model ( DTM);

建立数字地形模型；

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Establishment of digital terrain model subsystem in resource information system

资源信息系统中数字地形模型子系统的建立

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The development and application of the foreshore digital terrain model

滩涂数字地形模型的建模与应用

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Application of the Digital Topographical Model in the Railway Design

数字地形模型技术在铁路设计中的应用

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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

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The Construction of Seafloor Digital Terrain Model Based on Multibeam Soundings

多波束测深海底数字地形模型的建立

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Research on Digital Terrain Models Used for TF/ TA Simulation

用于TF/TA仿真试验的数字地形模型研究

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Development and application of digital topographical model of flood diversion zone

分洪区数字地形模型建立及其应用

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It is opined through analysis that the RDB method has the advantages of multitudinous alternative schemes for comparison and selection, rapid optimization speed, direct connection with the strip numerical contour model and saving of large amount of manpower and material resources.

通过分析认为，RDB方法具有比选方案多，优化速度快，能直接与数字地形模型连接，大量节约人力、物力等优点。

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In this paper, we discuss a method based on inverse distance weighted ( IDW) algorithm to construct seafloor digital terrain model ( DTM) using multi-beam soundings, and the application of level of details ( LOD) technology.

针对多波束测深数据集，采用改进的距离反比权重算法和多细节层次模型技术来建立海底数字地形模型（DTM）。

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The previous three-dimensional geological maps are the expansion of the two-dimensional digital geological map in Z-axis on the use of digital terrain model ( DEM), And then with Digital Orthophoto ( DOM) overlay, which formed the so-called "2.5D" model.

以往的立体地质图多是利用数字地形模型（DEM）对二维数字地质图进行了Z轴方向的拓展，然后再与数字正射影像（DOM）进行套合，形成了所谓的2.5维模型。

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Autodesk Civil 3D as software platform, will use memory mapping technology, the memory pool, triangulation technology and data rendering technology to achieve three-dimensional digital terrain model.

以Autodesk Civil3D为基础软件平台，具体将采用内存映射文件技术、内存池技术、三角剖分技术、数据渲染技术等来实现三维数字地形模型。

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The principles and approaches for building Digital Terrain Model ( DTM) of GIS are presented. The test generates Digital Elevation Model ( DEM) with the distance weighted average interpolation of shifting imitation for dispersed elevation points.

介绍了GIS数字地形模型（DTM）的构造原理和方法，用离散点移动拟合距离加权平均插值方法生成了GIS数字高程模型（DEM）。

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To generate regular grid digital terrain model ( DTM) from scattered points, the key problem is to improve the efficiency of searching neighbor points.

从离散点内插规则格网数字地形模型（DTM）方法的关键是如何提高待插点周围数据的搜索效率。

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By introducing the Digital Terrain Model ( DTM) to computer aided subgrade design ( subgrade CAD) system, the problem about how to design the drainage facilities by computer automatically can ho solved effectively.

将数字地形模型引入路基设计CAD中，可有效地解决路基排水设施的设置等关键问题；

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The method of generating DTM is examined in detail. An optimal algorithm is designed to create a Delaunay TIN with constraint of feature lines.

着重研究了数字地形模型中的TIN生成算法，给出了带特征线约束的Delaunay三角网最优算法的研究及实现。

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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。

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