网站上的资源：

http://www.ai.sri.com/digitalearth/index.shtml

http://www.ai.sri.com/tvgeo/download_full.shtml

https://sourceforge.net/projects/terravision

http://www.ai.sri.com/tvgeo/

TerraVision ^TM is an Open Source distributed, interactive terrain visualization system developed by SRI International. It allows users to navigate, in real time, through a 3-D graphical representation of a real landscape created from elevation data and aerial images of that landscape. There are many terrain visualization tools on the market, but here are some of the features that make TerraVision ^TM unique:

• New: Full Open Source hosted on SourceForge.
• TerraVision ^TM can browse huge datasets, in the order of terabytes.
• All data can be distributed over multiple servers across the Web.
• 3-D VRML and GeoVRML models can be overlaid, e.g. buildings, wind vectors, etc.
• TerraVision can access OGC Web Map Servers (WMS) [More]
• Datasets of different size, resolution, source, and coordinate system are supported.
• New: TerraVision Server on Internet2.
• Available for free for Windows, Linux, and SGI platforms.
  New: Version 6.0 released  

几篇论文资源：

1、 TerraVision II: Visualizing Massive Terrain Databases in VRML   (1999 年 )          下载 1   

2、地形可视化系统TerraVision技术分析及其在全球海量空间数据管理中的应用

TerraVision: Technical Analysis and It's Application in Building Global Massive Spatial Data Management System

http://www.wanfangdata.com.cn/qikan/Periodical.Articles/chtb/chtb2005/0506/050601.htm

<<测绘通报 >>2005年06期
贲进 , 张永生 , 童晓冲 , BEN Jin , ZHANG Yong-sheng , TONG Xiao-chong

简要介绍TerraVision开发的背景,重点论述系统的结构、数据组织、算法思想及在此基础上构建全球海量空间数据管理系统的方案.实践证明该方案具有较强的可行性,能够满足应用的需要.