虚拟地形环境构建技术改变了矿山资源勘查传统方式，实现了虚拟找矿与勘探。
Virtual geological environment of mine has changed the traditional methods of prospecting for mine.
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。
We deeply discuss the techniques on geometric modeling. Under the condition of simulating virtual forest landscape, the primary landscapes are terrain and the tree.
实验结果证明，该算法在基本保持视觉效果不变的情况下，极大地提高了虚拟地形场景的绘制速度。
The experiment results indicate that this scheme may attain a much higher frame rate in rendering the virtual terrain scene, as well as maintain the visual quality.
通过对虚拟地形的跟踪验证了控制器的性能，结果表明，该控制器不仅具有精确的跟踪性能而且具有良好的鲁棒性。
Tracking performance of terrain following controller is tested by tracking an imaginative terrain. The result shows that the controller exhibits robustness and excellent tracking performance.
提出用金字塔模型解决全球虚拟地形环境的多分辨率问题，并结合MRLOD技术设计并实现了一个全球金字塔模型。
The followings are what we have done in this dissertation:1. Design a Pyramid Model for global multi-resolution virtual terrain environment, and then implement this model by way of MRLOD.
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。
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.
指导员使用写字板计算机来移动虚拟目标，而接受训练的人则对这些目标射击，而且虚拟目标甚至还能躲在真实的地形或建筑后面。
Instructors use tablet PCs to move the virtual targets while trainees shoot at them, and the virtual targets can even hide behind real terrain or buildings.
地形是虚拟地理环境的承载体。
Terrain is the carrier of Virtual Geographic Environment(VGE).
而对地形在虚拟场景中的高度真实感的模拟，更是受到广大研究工作者的重视。
More and more researchers pay attention to simulate the high third dimension terrain in the virtual scene.
文中介绍了基于分形技术的三维地形生成技术及其虚拟浏览。
This paper introduces the three dimensional terrain generation technique which is based on fractal technique, and its virtual browse.
为了评价越野车辆的地形通过性，建立了基于虚拟试验场技术的评价系统。
In order to estimate the terrain trafficability of off-road vehicle, an estimating system was constructed based on VPG (virtual proving ground) technology.
最后在虚拟仿真平台上结合地形勘察案例验证了任务调度算法，结果证明AUV能够在无人干预下自主地完成整个使命。
The task coordination algorithm was tested according to a terrain scanning scenario in a virtual system and demonstrated that an AUV can fulfill its mission autonomously.
分布式仿真系统中，各节点之间通过消息互相交流信息，3维地形虚拟场景通常在大量的仿真系统中作为重要的对象参与仿真。
In distributed simulation system, one node connects with the others through message. In many simulation systems, 3d terrain virtual scene takes part in the whole process as a very important part.
地形、海洋、气象等环境影响下雷达电磁信息的三维表现是未来数字化虚拟战场环境不可回避的问题。
The 3D representation of Radar electromagnetic information affected by terrain, ocean and weather is a crucial problem in the future Digital Virtual Battlefield Environment (DVBE).
该仿真平台提供了用于创建地形模块的地形组件编辑器，并提供了环境编辑器以便利用预先创建的地形模块搭建虚拟月面环境。
This simulation platform provides a terrain Builder to create lunar terrain modules, and an environment Editor to utilize these modules to create and edit virtual lunar environment.
复杂地形场荣虚拟显示简化技术是可视化领域的研究热点之一。
How to simplify the virtual display of complex terrain scene is one of the research hot spots in the field of visualization.
三维地形场景实时绘制在虚拟现实、地理信息系统、仿真系统等领域中占有十分重要的地位。
The rendering of 3D terrain scene is playing a key role in many research fields such as virtual reality, geographic information system and simulation system, etc.
随着分布式虚拟GIS在仿真和军事中的应用需求，大范围，海量地形数据在网络环境下实时绘制技术成为GIS研究的重点之一。
The increasing application demand of distributed virtual GIS in terrain landscape and military has made real-time interactive browsing massive terrain data in large areas under network environment.
在网络游戏虚拟财产产生、变更的过程中，实质性地形成了相应的虚拟财产法律关系。
During the course of the production, change of virtual property in network games, corresponding legal relationship of virtual property substantively has formed.
三维地形虚拟现实技术是当前计算机图形学、地理信息系统和数字摄影测量技术研究的热点问题。
The study on 3 D Terrain VR is a hot topic in Computer Graphic, Geographic Information System and Digital Photogrammetry.
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。
3d terrain modeling and visualization are hot research topics in GIS, computer graphics, virtual reality, digital photogrammetry and other associated fields.
摘 要：三维地形模拟一直是虚拟现实、地理信息系统（GIS）等领域的研究热点。
Absrtact: 3D terrain simulation is always a hot topic in geographic information system(GIS), virtual reality and so on.
超大场景的三维地形可视化模型是虚拟现实系统平台的重要组成部分。
Three-dimensional visualization models for extra large scale landscape geomorphology are the important parts of VR system platforms.
近年来，地形漫游已经广泛应用于电子游戏、虚拟现实、飞行模拟、军事演习以及GIS等各个应用和研究领域。
Recently, terrain walkthrough has been widely used in computer games, VR, flight simulations, military mission planning and GIS etc.
三维地形是虚拟自然环境中不可缺少的因素，也是虚拟仿真领域中视景系统的重要组成部分。
Three-dimensional terrain is one of important factors of the natural scenes in virtual environment. It is also a significant composition of view system in virtual simulation field.
地形及地表景物是虚拟环境的主要组成部分。
The terrain and the surface scenery are the main components of VR.
本论文从分形布朗运动，三维地形建模和虚拟环境三个方面逐步进行了深入讨论。
The three aspect of the dissertation was discussed: fractal Brownian motion, 3D modeling and visual environment.
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。
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.
海量地形影像数据的快速浏览是GIS、虚拟现实、数字地球等领域应用的关键技术与难点之一。
Walkthrough in massive terrain and image data is a key technology and a difficult problem of GIS, VR and Digital Earth, etc.
海量地形影像数据的快速浏览是GIS、虚拟现实、数字地球等领域应用的关键技术与难点之一。
Walkthrough in massive terrain and image data is a key technology and a difficult problem of GIS, VR and Digital Earth, etc.
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