摘要
本文提出了一种球面上基本几何元素的园弧投影变换方法,并建立了三轴及对应的二轴园弧投影体系。然后,系统地阐明了点、各种球面曲线以及球面的园弧投影方法和性质。这样。
This paper presents a method of arc projective transformation of the fundamental geometric ele- ments on a sphere,and sets up an are projective system for three axial and two axial correspondently. It also expounds such ar projective methods and properties for points various spherical curves and sphere systematically.So a new tool for the research of sphere problems has been given
出处
《包头钢铁学院学报》
1990年第1期13-17,共5页
Journal of Baotou University of Iron and Steel Technology
关键词
基本几何元素
球面
圆弧投影
投影模型
parallel arc
central arc
trace line of a sphere
an arc projective system of a sphere for three axial
an arc projective system for two axial
