利用VRML技术开发基于网页的三维漫游系统

USING VRML TECHNOLOGY TO DEVELOP 3D ROAM SYSTEM BASED ON WEBPAGE

介绍了利用VRML(Virtual Reality Modeling Language)技术开发基于网页的三维漫游系统的基本原理和实现步骤。针对在网上浏览VRML漫游场景时,由于触发漫游系统运行的时间传感器节点在VRML文件被加载的同时被触发以及网络加载的延时,导致漫游场景不是从起始位置开始运行的问题,提出了利用外部程序控制漫游过程的方法,该方法使用JavaScript外部程序对时间传感器进行相应的控制,使用户浏览漫游场景时,不受网络加载延时的影响能从起始位置开始漫游。最后给出了应用实例。

The pricinple and steps of the development of the 3D roam system based on webpage by VRML are introduced. A major problem in viewing the 3D roam scene online is the delay of the loading,which leads to the fact that the scene can＇t be viewed from the start position. In order to overcome the problem, JavaScript external programme is used to control the TimeSensor. An example of application is presented.