That's a terrain model 0.7 kilometer wide by almost 1 kilometer tall.
这是一个地形模型大约是0.7公里宽1公里高。
Digital Terrain Model is the basic and core module of the railway route CAD system.
数字地面模型是铁路线路CAD的基础核心模块。
Digital terrain model (DTM) is an important component of a resource information system.
模型(dtm)是资源信息系统中的重要组成部分。
The methods to obtain the Digital Terrain Model (DTM) from contour map by scan digitizing were studied.
本文还研究了通过扫描数字化等高线图建立数字地形模型的方法。
Fractal terrain model is established for interpolation to obtain terrain graphs of high spatial resolution.
为了制备高分辨率的地形图，建立了地形的分形模型，然后进行插值处理。
This is an attempt to give a method of railway profile automation design by means of digital terrain model.
本文给出了一种用数字地面模型进行铁路纵断面自动设计的方法。
Finally, it USES the improved algorithm to build the terrain model and gets a good improvement in efficiency.
最后用改进的自动联结三角网算法进行了实验，取得了明显的改进效果。
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。
This thesis focuses on the establishment of 3d fractal terrain model and the achievement of the visualization system.
本文着重研究三维分形地形模型的构建及其可视化系统的实现。
A method is presented to implement real-time 3d road animation coupled with road design data and digital terrain model (DTM).
研究了一种用数字地面模型和公路设计数据实现实时三维动画的方法。
Road surface model is basis of highway three dimension design, the key is the overlaid compute of design model and terrain model.
公路三维表面模型是公路三维设计的基础，其关键是设计模型和地表模型的叠加运算。
The authors set up the road and terrain model with CDT theory, and transform it into mesh model and show the three-dimension view.
采用CDT理论建立道路与地形整体模型，并转化成格网模型进行三维显示；
In this paper the methods and experiments for applying the digital terrain model(DTM) to improve the classification accuracy are introduced.
本文着重介绍在遥感影象分类中应用数字地面模型（DTM）改正地物反射光谱中地形影响的方法和试验。
To counter the splice problem of digital terrain model (DTM) the paper puts forward the algorithm of cutting out of splice line to triangle network.
该文针对数字地面模型(dtm)的拼接问题提出了基于拼接线对三角网进行裁减的算法，并对其基本原理及主要过程进行了详细介绍。
When a control button is pressed, a specific area in the terrain model of China will be lit, indicating the distribution of the given mineral resource.
当你启动某一个控制按钮时，在中国地貌版图模型上相应的位置就会点亮，这些闪亮的点就代表这种资源在中国的分布位置。
This paper presents a dynamic construction algorithm for the multi-resolution terrain model based on the large scale GRID data or discrete elevation data.
论述了一种基于大规模格网数据或离散高程点动态构建多分辨率地形模型的算法。
Generation of triangular meshes for digital terrain model is studied, the triangulation algorithm of discrete points and edges and its data structure are presented.
对构筑三角形网格建立数字地形模型进行了研究，给出了基于散乱点和边建立三角形网格地形模型的生成算法和数据结构。
The design reference wind speed and related wind characteristic parameters of the bridge are derived from the wind tunnel test of a terrain model of the bridge site.
通过模拟桥址地形的风洞试验，确定桥梁设计基准风速和相关的风特性参数，使得到的风速真正反映桥址处风的实际状况。
High resolution digital terrain model derived up from LiDAR point clouds can provide more details of microrelief information for tidal wetland environment researches.
应用激光雷达数据生产高精度的数字地面模型，可为滨岸环境的研究提供精细的微地貌数据。
It is significant to construct a suitable terrain model for real-time rendering terrain scene, simulating terrain environment in reality and achieving analysis functionality in VTE.
建立合理的三维地形模型，对于实现实时绘制虚拟地形场景，逼真模拟地形环境，实现虚拟地形环境中的分析功能及其它相关控制有着重要的意义。
Digital Terrain Model is a general designation of space topographical data set, and it is the digital description with the figure of space position and topographical attributive character.
数字地形模型是空间地形数据集合的统称，是具有空间位置特征和地形属性特征的数字描述。
ROAM method adopts split and merge operations to adjust triangle meshes, can interactively perform view-dependent, locally-adaptive terrain meshing and can construct multiresolution terrain model.
ROAM算法就是通过采用分解和合并方法实时地调整三角形网格，能交互式地实现观察依赖、局部可调整的地形网格化处理，生成多分辨率的地形模型。
This paper proposes a dynamic simplification algorithm for the terrain model based on the Triangle Subdivision Bi tree to realize continuous view dependent multi resolution rendering of terrain mesh.
为实现地形漫游，提出基于三角形二叉树的地形网格模型动态简化算法，实现了与视点相关的连续多分辨率简化及快速动态绘制。
This paper describes the basic concepts of digital terrain model (DTM), how to use DTM in practice in the mining geological exploration, and how to use CASS surveying and mapping system to build DTM.
简要阐述了数字地面模型(dtm)的基本概念，并结合矿山地质勘查，提出实际情况应用，利用CASS成图系统建立模型。
This paper discusses an algorithm of dynamic triangulation for RSG model of terrain.
论述了一种基于规则格网地形模型的动态构网算法。
This paper discusses an algorithm of real-time dynamic triangulation for RSG model of terrain.
本文论述了一种基于规则格网地形模型的实时动态构网算法。
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。
The author proposed a tentative idea about forming the model of submarine terrain by the model of DGPS combining with Sonar system.
并提出用差分gps配合声纳测深进行动态连续定位，从而建立海底地形模型的设想。
Based on a simple HVAC climate model, considered the effect of latitude, distributing of land and water, terrain and discrepancy on town and village, ascertained the parameter.
本文在一简化气象模型的基础上，综合考虑了纬度、水陆分布、地形以及城乡差异等多种因素的影响，并对参数加以确定。
Under strong large-scale wind field, the authors add smooth terrain of Lake Biwa to this model, and the results obtained are satisfactory.
在强的背景风场下，模式加入了经过适当平滑的琵琶湖流域地形，得出了一些有益的看法。
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