Design And Implementation Of An Interactive Virtual Campus Roaming System Based On VRML

With the rapid development of virtual realitive technology and computer network technology,various virtualization of modeling in landscape becomes possible. It has incomparable advantage compared traditional physical model in aspect of extended applicational function such as browsing,query etc. Virtual campus can provide various campus realistic scene information to people comprehensively and intuitively. Roaming in the virtual campus environment,you can feel similar sense of reality on-the-spot observation.The purpose of this paper is to discuss the scene modeling,interaction , roaming and imformation search technology in virtual desktop system.IMAGIS V2.3 3D visualization geographic information system used as a 3D scene modeling tools,Virtual Reality Modeling Language(VRML) with JAVA language, which realized a virtual XinJiang Normal university campus roaming system with basic function of human-computer interaction. This paper mainly studies in the following three aspects of the exploration:1. Constructing virtual 3D monomer model and scene integration is the basic work of campus roaming system in the design.This paper using IMAGIS V2.3 3D visualization geographic information system construct s 3D virtual campus, discusses scene model of database organization, digital terrain model DEM established, uses 2D graphics on three-dimensional entity rebuilding and management.2.Discussing interactive programming and the programming interactive technology , realizing the interaction of the VRML perception and anchor point , and using Java Script language Script class modify VRML nodes, Script nodes and Node class controls VRML Node .On this basis, put forward that a variety of interactive methods for scene objects.3.Using VRML human-computer interaction mechanism, research manipulating virtual entity in roaming process.