摘要： 详细分析了VRML的特点、动态交互的原理及其在VRML中三维地形场景的生成技术。依照VRML语法扩展了适合三维地形网络表达的VRML原型节点，从而将使三维大规模地形数据可直接进入VRML世界、高精度数学运算和实时交互漫游。

关键词: VRML, 三维地形可视化, VRML原型节点

Abstract: The paper studies in detail the characteristic and dynamic interactive principle of VRML(virtual reality modelling language),and the technology of three-dimension terrain scene's creating based on VRML.And extends proto nodes according to VRML's syntax.This results in large scale terrain date into directly VRML world ,high-precision mathematical calculate and real time interactive wander on networks.

中图分类号: 

• TP391.41