To build a realistic Virtual GIS environment on the Internet is quite meaningful but difficult.
在Internet上创建逼真的虚拟GIS环境是相当有意义的，同时其难度也相当大。
As one of the key technologies of the virtual city construction, virtual GIS has been a hot study area in the current research field of GIS.
虚拟GIS作为虚拟城市建设的关键技术之一，已经成为当前GIS研究领域的研究热点。
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.
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。
According to the analysis above, a solution to achieve GIS interoperability through constructing "virtual central server" is brought forward.
在此基础上，提出了通过构建虚拟中心服务器的方式来实现GIS互操作的解决方案。
In recent years, some advancing technologies, such as digital earth? Virtual reality and the Internet, have provided opportunities and challenges for GIS.
近年来，数字地球、虚拟现实、计算机网络等前沿技术为GIS提供了新的机遇和挑战。
This thesis was based on the technology of virtual reality, GIS, Object-Oriented and COM, and put emphasis on the implementation of the city planning experiment system based on virtual reality.
本论文以虚拟现实技术、GIS技术、面向对象技术和基于组件的软件开发技术为基础，着重阐述了基于虚拟现实技术的城市场景规划实验平台的建立。
Virtual Reality has been widely used in the fields such as flying simulation, interactive GIS, virtual touring, digital earth, information visualization, architecture walkthrough, etc.
虚拟现实技术在飞行仿真、交互式GIS、虚拟购物、数宇地球和游戏娱乐等领域都有广泛的应用。
Many fields need GIS browse, display and analyze in the virtual three-dimensional Spaces.
很多应用领域要求GIS能够在虚拟三维空间中进行浏览、显示和分析。
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。
Absrtact: 3D terrain simulation is always a hot topic in geographic information system(GIS), virtual reality and so on.
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。
The study is mainly focused on the system interface among digital photogrammetry, GIS and Virtual reality, 3D modeling, ; texture making and virtual environment design.
着重研究解决了全数字摄影测量系统、GIS与虚拟现实系统之间的数据接口问题，三维建模，纹理制作及虚拟环境生成等问题。
Sharing between various spatial data has always been a main problem to the development of VR-GIS, which is a new field integrating GIS and VR (Virtual Reality).
多源空间数据共享一直是VR - GIS(虚拟现实地理信息系统)应用系统开发中需要解决的重要问题。
This system not only has conventional Web GIS functions, but plays an important role in tour-route-decision making, tour guiding, virtual reality in traveling and geo-science popularization.
该系统采用开放式的设计模式，实现了旅游信息GIS查询、旅游路线生成、模拟旅游和公众地质科普教育等功能。
Virtual Reality has the advantage of apperceiving and experiencing geographic data, which makes up the deficiency of GIS.
虚拟现实技术在创建和体验虚拟世界中的优势可以弥补地理信息系统对地学数据的感知和体验上的不足。
The three dimensional landscape reconstruction is one of the important aspects in the research of Virtual Reality Geographic Information System (VR-GIS).
三维景观重建是虚拟现实地理信息系统(VR GIS)研究中的重要方向之一。
Spatial Analysis technology and its Visualization is an important research problem in computer graphic, RS (Remote Control), VR (Virtual Reality) and GIS and so on.
空间分析技术及三维可视化实现是计算机图形学、遥感、虚拟现实、特别是地理信息系统(GIS)等领域研究的重要问题。
Spatial Analysis technology and its Visualization is an important research problem in computer graphic, RS (Remote Control), VR (Virtual Reality) and GIS and so on.
空间分析技术及三维可视化实现是计算机图形学、遥感、虚拟现实、特别是地理信息系统(GIS)等领域研究的重要问题。
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