基于Java3D虚拟场景的关键技术

Key Techniques of Virtual Scene Based on Java3D

鉴于在网络上表达三维世界的需求以及Java3D良好的移植性,笔者讨论了Java3D场景结构图,并对基于Java3D开发三维虚拟场景的关键技术进行了深入研究,包括三维场景数据存取的序列化、改进的LOD算法以及在Java3D中调用VRML场景对象;最后实现了基于Java3D的三维虚拟城市,可在网络上实时漫游,编辑与处理。试验结果证明了Java3D相关技术的有效性。

In view of the demand of expressing three-dimension （3D） word on network and good transplant of Java3D, the scene structure picture of Ja- va3D was discussed and the key techniques of developing 3D virtual scene based on Java3D, including serialization of data access in 3D scene, improved LOD arithmetic and transferring VRML scene objects in Java3D were deeply studied. At last, the 3D virtual city based on Java3D was implemented, which could be roamed in real time, edited and treated on the network. The test proved the validity of Java3D relative tecthniques.