VRML虚拟场景中Java编程功能的实现

在实现动态、交互、三维的复杂VRML场景时，一般编程主要用Java，但存在着各VRML浏览器的兼容性问题，VRML场景中的Java编程功能有可能在一种浏览器上运行正常，而在另一种浏览器上根本就不能工作；发布在网络上可以正常工作，而在本地就不能正常工作。本文介绍了通过Classpath注册项的正确设置以及使用合适的Java类库来编译class文件，实现在IE中使用Cortona VRML client浏览动态、交互、三维水分子模型虚拟场景浏览，最后指出X3D发展方向。

Realization of programming functions using Java in a VRML world

In order to build a dynamic,interactive,three dimensional sophisticated VRML scene Java can be used in not only complexprogramming but also simple programming because Java language has strong functions,and running speed of byte flow is fast thanJavaScript and VrmlScript.In fact,VRML browsers may have some compatibility problems.Java programming functions in a VRMLscene may work well in a browser,but can't basically work in another;similarly,Java programming functions sent to the network canwork well,but can't work on local computer.With an example of browsing a dynamic,interactive,3 dimensional virtual scene of watermolecule with Cortona VRML client in Microsoft Internet Explorer,the methods of using correct Classpath register item and proper Javaclass libraries and X3D research direction are put forward in this paper.