"TerraVision is a self-contained, virtual reality, 1-to-1 representation of our Earth. By means of a stylised globe users can zoom in on any location in the world and obtain minutely detailed pictures. (virtual earth)
The system offers not only satellite images and aerial photos but also geographically referenced data of all types – e.g. topographical or architectural schematic representations.
TerraVision was the first system to provide visualisation and unlimited freedom of navigation within an infinitely large spatial data environment. Providing visuals ranging from overviews of the Earth to extremely detailed movements in buildings, TerraVision provides smooth, real time pictures in a single, comprehensive, virtual reality system."