Conic and cyclidic sections in double conformal geometric algebra G8,2 with computing and visualization using Gaalop

被引:4
|
作者
Easter, Robert Benjamin [1 ]
Hitzer, Eckhard [1 ]
机构
[1] Int Christian Univ, Coll Liberal Arts, Mitaka, Tokyo, Japan
关键词
conformal geometric algebra; conic sections; geometric algebra computing; perspective projection; visualization;
D O I
10.1002/mma.5887
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The G8,2 geometric algebra, also called the double conformal/Darboux cyclide geometric algebra (DCGA), has entities that represent conic sections. DCGA also has entities that represent planar sections of Darboux cyclides, which are called cyclidic sections in this paper. This paper presents these entities and many operations on them, in terms of algebraic expressions, computer code, and many examples of computer-generated graphics. Operations include reflection, projection, rejection, and intersection with respect to spheres and planes. Other operations include rotation, translation, and dilation. Possible applications are introduced, which include orthographic and perspective projections of conic sections onto view planes, which may be of interest in computer graphics or other computational geometry subjects
引用
收藏
页码:334 / 357
页数:24
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