Application Of Virtual Reality Technology And Geographic Information System Technology In Virtual Campus

Virtual reality technology, exactly like modem computer one that technology establish objective environment surmount objective space-time, harmonious man-machine environment that can control can immerse as well. Traditional virtual reality technology is used for modeling on the basis of the computer figure, with the development of virtual reality technology. It requires higher and higher for users' sense of reality of vision to immerse the sense and three-dimensional figure, on expressing and drawing the speed and sense of reality in modeling in the complicated true scene, traditional computer figure learns to show their limitations gradually.Virtual Reality Geographic Information System (VR-GIS) is the new development of the combination of Geographic Information System (GIS) technology and Virtual Reality (VR) technology .It is the key technology of the application of digital earth, digital city, digital campus. The digital campus utilizes advanced information-based means and tool on the basis of traditional campus, every resource digitization of realistic campus, first digital space that form. Roam the system in the fictitious campus among them , utilize virtual reality technology to reproduce the view of the campus in the computer environment. Because the Internet is able to deliver dynamic, graphic information, a virtual tour of the campus can be made possible to allow people to get a feel for the look of the campus without needing to visit in person.To build the virtual campus with network technology of the computer , 3D GIS technology and virtual reality technology can act as an important component for the project of a digital university. It can offer the most ocular form of expression for campus planning , management and an important platform for the construction of digital university.This paper studies on the application of the technologies such as VR and GIS used in the virtual campus. The virtual campus is announced on the web page. It's crucial technology is to have the vision of 3D sceneries and to make the panoramascome into being. The paper mainly contains the three aspects as the follows:1. Several related theoretical foundation. This paper introduces the theoretical foundation of the technology about VR and GIS including geographic information system, 3D GIS, remote sensing, virtual reality technology, virtual reality modeling language and VR-GIS.The study of the application of in the paper, VR-GIS technology and its application in the virtual campus are explored. The main content is as following:2. Some digital modeling methods. Using 3D module of GIS soft-ware to have a virtual model on the terrain^ houses and scenes in a large domain conveniently; Using the remote soft-ware to abstract terrain texture; using Jietu soft-ware to deal with the campus picture as a panorama; Using VRML to create viewpoint-. TV screen and multimedia.3. One practice. In the virtual campus of Chongqing normal university, it achieves the 3D of the sceneries % the virtual visit of the panorama between the No. 1 teaching building and the comprehensive building > the anchor transition of the virtual scenes and the inquirement of the features about houses and roads. The virtual campus roam is realized through the visit to the relevant web pages.