| 基于多步法绘制理论的抛物线裁剪算法 |
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| 引用本文： | 李建华.基于多步法绘制理论的抛物线裁剪算法[J].广西科学院学报,2003,19(4):154-158. |
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| 作者姓名： | 李建华 |
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| 作者单位： | 广西师范大学数学与计算机科学学院,桂林,541004 |
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| 摘 要： | 基于多步法绘制原理和Brensenham算法，提出一种新的关于抛物线的线性化裁剪算法。该算法首先线性化计算，由给定抛物线生成绘制时所需的两个数组，然后考虑到各种裁剪情况，利用两数组实现抛物线与窗口裁剪线的求交运算，得到相应的裁剪数据，最后再绘制出所求的裁剪图形。
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| 关 键 词： | 抛物线 多步数目 多步区问 多步数组 弧边形 裁剪算法 多步法绘制原理 Brensenham算法 计算机图形学 |
| 收稿时间： | 2003/4/11 0:00:00 |
| 修稿时间： | 2003年4月11日 |
Parabola Clipping Algorithm Based on N-Steps Rendering Theory |
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| Li Jianhua.Parabola Clipping Algorithm Based on N-Steps Rendering Theory[J].Journal of Guangxi Academy of Sciences,2003,19(4):154-158. |
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| Authors: | Li Jianhua |
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| Institution: | College of Math. and Comp. Sci., Guangxi Normal University, Guilin, 541004 |
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| Abstract: | A new clipping algorithm about parabola based on N-step rendering theory and Bresenham algorithm is proposed.The main idea of this algorithm is that two rendering arrays are firstly produced through linear computation by a definite parabola,then while all kinds of clipping situations being considered and the arrays being utilized,the clipping data is obtained by a computation which is a kind of insection computing between parabola and the window clipping line,finally the clipping graphics is rendered. |
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| Keywords: | parabola N-step number N-step interval N-step array arc polygon clipping algorithm |
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