Research And Implement Of A Virtual Campus Walkthrough System

In take the concept of the digital earth and the digital city as under the premise big background, a combination of the virtual reality technology and the computer network technology make a rapid development that already became a hot spot in computer software for the research, the development and the application. The virtual campus took the virtual reality technology as an important application in the modern education, which is to make the campus a digitization and virtualization. And it may optimize the daily management and the auxiliary construction plan of the campus. Also it strengthens the policy-making support.In the paper the virtual campus walkthrough system takes the east school district of the Chang'an University cadre as the virtual space. According to the virtual reality technical principle the author carried on the acquisition of information, the establishment three-dimensional model, then proposed the design route and the plan of the virtual walkthrough system. The author makes the VRML language as the core, with the ASP technology and the JavaScript script language and the Java language, to realize walkthrough system based on the Internet. The system causes the browsing to immerse in it and the browsing has a feeling which experiences personally. Simultaneously the system may conveniently and nimbly make an alternation with this virtual campus, achieving both of the effect and the function.The paper researches the application of the virtual reality technology in the virtual campus walkthrough system. In the process of proposing the plan and realizing the system, the paper has mainly completed the content below:1. Introduction of the basic theory In the paper it mainly introduced the VR technology rationale, the characteristic, the virtual reality walkthrough system and so on, also it introduced knowledge relate to the VRML language and the JAVA language.2. Modeling method Regarding to the basic model the system adopted the 3D MAX modeling primarily, then it performed to the production three-dimensional model with the VRML language to revise. In the scene integration and the scene optimization aspect, the system unified the VRML language characteristic to carry on processing necessarily. 3. External referencing It is not enough to use the VRML language only. And it has to apply the high-level programming language to realize a more formidable complex function. In the paper it introduced the external reference method of the JAVA language and the VRML language and how to realize.4. System realizations In the virtual campus walkthrough system for the east school district of the Chang'an University cadre, it realized the three dimensional virtual and the view point jumping for the objects which are the main buildings, paths, flowers and plants and so on in the campus. Through the inquiring for the buildings, the system may link to the correlate homepage, two-dimensional navigation electronic map and the virtual scene alternation as well as the increasing and the deletion for the three-dimensional model.