VRML与JavaScript的三维地质体交互研究与实现①

摘要

Setting three dimensional geological body as an example, this paper discusses VRML constructing virtual scene roaming and interactive technology.Due to the traditional three-dimensional making software such as AUTOCAD,3DS MAX can not be interacted in time, this paper totaly describes the principle for the VRML nodes,such as TouchSensor and Switch controlling the virtual scene,combined with Javascript and VRMLscript interface,we studies the method of dynamic controlling virtual reality scene. The model of 3d geological body is constructed on the Web for users on the Internet to provide convenience. This example realizes the interactive operation on virtual scene such as stratigraphic hierarchical display, drill simulation,coordinates and information querying, and other functions, always has obtained a good effect.%　　以三维地质体为例,探讨 VRML 构建虚拟场景的漫游与交互技术。针对传统三维软件如 AUTOCAD、3DS MAX生成的模型无法实现实时交互等缺点,详尽地阐述了VRML中TouchSensor, Switch等节点对虚拟场景进行控制的原理,结合Javascript脚本语言和VRML脚本接口研究了对虚拟现实场景进行动态控制的方法。将地质体三维模型构建在Web上,为用户在互联网上访问提供方便。本例实现了三维模型交互操作如地层分层显示、模拟钻孔、坐标及地层信息查询等功能,取得了良好的效果。