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椭圆的高质量、快速生成算法
A HIGHLY QUALITATIVE AND QUICK ALOGRITHM FOR THE GENERATION OF ELLIPSES
【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.
【Abstract】 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.
【关键词】 泰勒展开;
算法;
迭代法;
绘图技术;
【Key words】 Taylor expansion; algorithm; iteration method; drawing technique;
【Key words】 Taylor expansion; algorithm; iteration method; drawing technique;
- 【文献出处】 华北工学院学报 ,JOURNAL OF NORTH CHINA INSTITUTE OF TECHNOLOGY , 编辑部邮箱 ,1996年01期
- 【分类号】TP301.6
- 【被引频次】1
- 【下载频次】58