摘要
本文给出一个等分角度为增量的绘椭圆算法，通过构造的几个表达式，减少了计算量，预处理后，计算每对绘图点只需９次减法．构造的表达式是直接对ｓｉｎθ，ｃｏｓθ的泰勒展开式进行的，因而计算精度高，并经过上机验证．
This paper presents a generation algorithm of ellipses with sectrin increments. By utilizing a few expressions, the calculation amount is reduced. Afterpreprocess, a couple of graphic points are only calculated by 9 times subtraction.The provided expression is based on Taylor expansion of sing and cosθ, so the calculation is very prevue. Algorithms are tested on computer, and the results arevery well.
出处
《华北工学院学报》
1996年第1期26-29,共4页
Journal of North China Institute of Technology
关键词
迭代法
绘图技术
椭圆方程
Taylor expansion
algorithm
iteration method
drawing technique
