The Design And Implementation Of The Virtual Exhibition Based On WEB

With the popularity of the Internet and the maturity exhibition industry, online exhibition stand out. The2010World Expo has become history, but the first time China shows the Expo online in the form of three-dimensional, let the audience immersive tour Expo. The2010World Expo will make online virtual exhibition become the focus. The online virtual exhibition is a realistic virtual scene created by computer. The user access virtual exhibition system through Internet, can freely roam exhibition hall,360degrees view exhibits, and interact with exhibition etc. Online virtual exhibition show entity hall lifelike on the Internet.The subject mainly designs and implements a virtual exhibition system based on web (online virtual exhibition system) China International Exhibition Centre, Hall1as a prototype,use the VRML virtual modeling language and combined with the web technology. The main content of this paper is as follows.Firstly, the paper introduces the background and significance of the online virtual exhibition, and analyzes the current situation of the online virtual exhibition.Secondly, the paper details the technical features of VRML and the Web frame technology, and determines the technical route of the virtual exhibition system based on Web.Thirdly, the paper analysis the applicable objects, scope and function of the system, then divides the system into virtual exhibition and web platform two modules to outline design.Fourthly, the paper focuses on the modeling method of virtual exhibition system and interactive technology research. In this paper, achieves the virtual exhibition modeling by the steps of geometric modeling, texture mapping modeling, sound modeling and motion modeling. The paper studies the VRML interactive implementation principle based on the Script node and event routing mechanism, realizes five interactive technology which are the viewpoint binding, the viewpoint tracking, model animation, dynamic routing adding and removing, and information interaction by JavaScript. The paper achieve the module which are the login and register module, the dynamic management of the exhibition module, exhibition shows module, the file upload and download module and online forums by the framework of Struts+Hibernate.Finally, the paper studies the communication between the VRML and HTML, and implements the integration of the virtual exhibition and the web platform, then optimizes the virtual exhibition module,The paper finally completes the system summary, and points out the problems existing in the system and the next step of work.