块状地质体的多面体表示及交互编辑

针对固体矿产的地质建模问题,中国科技工作者提出了用于人机交互构造块状地质模型的“橡皮膜技术”并在此基础上完成了人机交互计算机辅助勘查系统PandaCAEX。“橡皮膜技术”可以快速地构造出任意形状的块状地质模型,为地质模型的构造提供了极大的方便。但“橡皮膜技术”本身存在着模型表达过于复杂和一些功能上的缺陷。本文针对这些问题提出直接使用多面体模型对块状地质体进行表达,同时给出了模型的交互编辑方法。与“橡皮膜技术”相比,这种技术在保留“橡皮膜技术”优点的同时,使块状地质模型的表达大大简化、功能更加完善。该模型已经成为新的改进系统的核心,证明了模型的实用性。

Blocky Geological Body Representation with Polyhedron and Its Interactive Modification

In the field of geological modeling for solid mineral resources, Chinese scientists invented a technique called "rubber membrane technique" for interactive modeling of the blocky geological body. On the basis of this technique, PandaCAEX, a computer ai-ded exploration system, was developed. As this technique remarkably simplifies geological modeling, users can efficiently construct a blocky geological body of arbitrary shape. However, this method is very complicated and has some shortcomings. This paper presents a method that uses polyhedrons directly to model the blocky geological bodies. The algorithm for editing the method is also given. This method, while preserving the advantages of the "rubber membrane technique", is much simpler and more perfect. Serving as the kernel of a newly revised system, this method proves to be practical.