上海交通大学学报(自然版)

• 自动化技术、计算机技术 • 上一篇    下一篇

几何计算及其理论研究

何援军   

  1. (上海交通大学 计算机科学与工程系,智能计算与智能系统教育部微软重点实验室, 上海 200240)
  • 收稿日期:2009-04-28 修回日期:1900-01-01 出版日期:2010-03-30 发布日期:2010-03-30

Reseurch of Geometric Computing and Its Theory

HE Yuanjun   

  1. (Department of Computer Science & Engineering, MOEMicrosoft Key Laboratory for Intelligent Computing and Intelligent System, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2009-04-28 Revised:1900-01-01 Online:2010-03-30 Published:2010-03-30

摘要: 提出了一种新的几何计算理论.在几何基础层,充分利用笛卡儿创立的坐标几何思想,用几何代数化方法构建二、三维基本的几何代数基(简称几何基),可利用它的序列建立高一层次的几何基.在几何处理层,用几何方法解决几何问题,寻求几何问题的几何基求解序列.对几何引入方向性,统一几何的表示,简化几何基序列的求解过程.并从理论上探索解决几何奇异问题的完整解决方案,形成一个统一、规范的几何计算体系.由此实现莱布尼茨式的通过几何语言直接处理几何体的宏伟设想.

关键词: 几何计算, 几何代数化, 几何基, 几何奇异

Abstract: A new geometric computing theory was proposed. On the definition level of geometric elements, using the Cartesian coordinates ideology as reference, 2D and 3D “geometric algebra elements” (or “geometric elements” for short, which could construct an upperlevel element in the solving sequence) were constructed by geometry algebraization methods. On the processing level of geometries, geometric problems were solved with geometry methods, by which a geometric element solving sequence could be constructed. Directional property was introduced into geometries in this theory and geometries were represented in a unified format. They help to simplify the processing of finding the geometric element solving sequence for a geometry problem. The paper also tried to theoretically find out an integrated solution for geometry ambiguity issues, and established a unified, standardized geometry computing architecture. The Leibniz’s mind——to process geometric objects with geometric language——was implemented in an indirect way!