Generation, Terrain Editing, and Terrain Modeling.
廓来生成地形网孔。
Then the method of 3-d terrain modeling based on regular grid is studied.
然后研究了基于规则格网的三维地形建模方法。
Based with the comprehensively summarization of the previous works, the simplification of Terrain Modeling of triangulated irregular network is studied.
在总结前人所做工作的基础上，重点研究了不规则三角网地形模型的简化方法。
3d terrain modeling and visualization are hot research topics in GIS, computer graphics, virtual reality, digital photogrammetry and other associated fields.
三维地形建模及可视化是GIS、计算机图形学、虚拟现实、数字摄影测量等领域的研究热点。
The key technique of the technical scheme for electronic sand table, such as data processing, terrain modeling, feature matching, is introduced in details in this paper.
然后提出并实现面向土地利用规划的电子沙盘制作的技术方案，详细介绍了数据处理、地形模拟与要素匹配等关键技术。
Visual 3D terrain simulation technology is an important means of virtual reality, which deals with realistic 3D terrain modeling and 3D terrain visualization real-time drawing mainly.
三维地形可视化仿真技术是虚拟现实的重要手段之一，主要研究真实感三维地形建模和三维地形可视化的实时绘制。
As the Shanghai downtown construction-intensive, complex terrain, has been the focus of three-dimensional modeling and difficult.
由于上海中心城区建筑密集，地形复杂，一直是三维建模的重点和难点。
The applications of SEDRIS in dynamic terrain are focused, which include usage of SEDRIS in Simulation Object Modeling and using STF as the runtime database.
阐述了综合环境数据表示和交换规范（SEDRIS）在动态地形中的应用，包括仿真对象模型中的应用和将SEDRIS传输格式（STF）文件作为运行数据库的应用。
While integrating transport infrastructure within the landscape considering the large scale modeling of the terrain, the purpose of agriculture in the peri-urban context has to be redefined.
考虑地形的大规模形态整合景观内的交通系统，重新定义在城郊区域进行农业生产的目的。
We deeply discuss the techniques on geometric modeling. Under the condition of simulating virtual forest landscape, the primary landscapes are terrain and the tree.
对虚拟森林环境的建模技术进行深入探讨，主要内容包括虚拟地形的构建和林木的几何重建技术。
This paper introduced the modeling process and realization method and terrain simplification of the freeway three-dimensional scene.
文中介绍了高等级公路三维视景的建模过程、实现方法，以及地形的简化技术。
There exist already methods for combining random mid-point displacement method with curved-surface modeling to generate mountain terrain.
随机分形法和曲面造型法分别在地形生成的随机性和可控性方面能起到一定的作用。
Multiresolution modeling, which is used to resolve the real-time rendering of large scale static terrain, has attracted growing interest at home and abroad over the last decade.
多分辨率建模作为解决大面积静态地形实时动态显示的手段，近年来在国内外得到普遍的重视和研究。
Multiresolution modeling, used to resolve the real time rendering of large scale terrain, has attracted growing interest over the last decade.
多分辨率建模作为解决大面积地形实时动态显示的手段，近年来在国内外得到普遍的重视和研究。
Chapter four is the study of terrain three-dimension modeling of Yangshan Harbor area.
第四章是洋山港地区地形三维建模研究。
Terrain curvature is one of fundamental variables in geomorphology and geoscience modeling.
地形曲率是地形表面几何形态和地学建模的基本变量之一。
Then some improvements are presented. The applications of SEDRIS in dynamic terrain are focused, which include usage of SEDRIS in Simulation Object Modeling and using STF as the runtime database.
阐述了综合环境数据表示和交换规范（SEDRIS）在动态地形中的应用，包括仿真对象模型中的应用和将SEDRIS传输格式（STF）文件作为运行数据库的应用。
The AMDB mapping and modeling method, the synthesis display technology of airport 3D model and terrain were studied emphatically.
重点研究了AMDB数据绘图映射和建模方法、机场三维模型与地形的合成显示技术。
This paper blowout accident occurred in the actual surface of the complex terrain of the three-dimensional model of the modeling methods were discussed.
本文对井喷事故发生地实际复杂地形地表的三维模型的建模方法的进行了探讨。
In order to improving modeling efficiency and model fidelity, the author studies the modeling methods and improving measure on constructing tin considering limitation of terrain character.
围绕提高建模算法的效率和改进模型表示地形的逼真度与精度等问题，研究了顾及地形特征约束条件下不规则三角网t IN的建模方法和改进措施。
It indicates that the former modeling platform which was established based on the small scale terrain data can not meet the current application requirements finely.
分析了以往软件开发中存在的各种问题，指出以往针对小比例尺地形数据创建的建模平台已不能很好地满足现在的应用要求。
Three dimensional strata model, constructed by the published modeling approaches, is inconsistent to the terrain.
目前三维地层表面建模方法构建的三维地层模型上表面粗糙，与地形不一致。
Digital Elevation Model(DEM) is a digital modeling process which aims at terrain and physiognomy. Irregular triangulation TIN is the best model when DEM data are stored and expressed.
数字地形模型是针对地形地貌的一种数字建模，这种建模的结果通常就是一个数字高程模型（DEM）。
Analyzing the performance method of 3d terrain dynamic modeling and it's characters, and set the point to the terrain dynamic modeling based on the change of space data.
分析了三维地形动态建模的表现方法及特点，并将地形动态建模研究的重点放在基于空间数据改变的动态地形建模上。
For the requirements of creating 3d terrain based on the elevation data which is in the form of regular grid, a kind of modeling method based on weighted average algorithm is proposed.
针对由数字地图等以均匀网格形式给出的高程数据生成真实三维地形的仿真需求，提出了一种基于加权外推算法的地形几何模型。
Based on the classification of the primary modeling objects in the city scene, we separately rebuild the model of the terrain and objects according to the 3d spatial data structure.
在对城市景观主要建模对象进行分类的基础上，建立了三维空间数据结构，实现了地形和地物模型三维重建的系列算法。
Compared with modeling on ground terrain, modeling on underwater terrain is a converse process. It takes a few but valuable data to establish topological structure.
与陆地地形建模相比，水下地形的多分辨率建模是一个逆向的过程，它通过较为少量但非常有价值的数据来建立水下地形的拓扑结构。
Thc display of modeling objects, texture, plants, roads and Bridges on the terrain surface is effected.
并在地表实现地物造型、纹理、植被及道路、桥梁的显示。
According to the extreme lunar terrain environment, the dynamic analysis is carried out on a lunar rover as a rigid multi-body system by using the rigid-body modeling method.
针对月球的复杂地形环境，利用多体系统动力学的理论，将月球探测车作为一个多刚体系统，对其进行动力学分析，建立了软地面环境下的月球探测车动力学模型。
According to the extreme lunar terrain environment, the dynamic analysis is carried out on a lunar rover as a rigid multi-body system by using the rigid-body modeling method.
针对月球的复杂地形环境，利用多体系统动力学的理论，将月球探测车作为一个多刚体系统，对其进行动力学分析，建立了软地面环境下的月球探测车动力学模型。
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