CAJ | 학술논문

为提高区域填充效率，对三种常见的区域填充算法进行了介绍和分析，并对其中优势较为明显的活性边表区域填充算法进行了进一步改进。改进算法针对原始算法的不足，充分利用多边形顶点信息，建立了活性边动态发现机制，使得算法时间效率和空间效率都得到提高；同时，为填充自相交多边形，又提出一种简单有效的基于扫描线的多边形自相交点探测方法，使得算法的适用性得到进一步增强。实验结果表明，算法的改进取得了很好的效果。
위제고구역전충효솔，대삼충상견적구역전충산법진행료개소화분석，병대기중우세교위명현적활성변표구역전충산법진행료진일보개진。개진산법침대원시산법적불족，충분이용다변형정점신식，건립료활성변동태발현궤제，사득산법시간효솔화공간효솔도득도제고；동시，위전충자상교다변형，우제출일충간단유효적기우소묘선적다변형자상교점탐측방법，사득산법적괄용성득도진일보증강。실험결과표명，산법적개진취득료흔호적효과。
To improve the efficiency of area filling, the paper makes an introduction and analysis for the three common area filling algorithms and further improves the active-edge-table algorithm which has more obvious advantages compared with the others. For the deficiency of traditional algorithm, the improved algorithm makes full use of vertex information and establishes the dynamic discovery mechanism of active edges, making the time efficiency and space efficiency both improved;meanwhile, in order to fill the self-intersected polygons, an easy and effective method to detect self-intersected vertices based on scan line is proposed, making the adaptability of the algorithm enhanced. Experimental results demon-strate that the improved algorithm achieves very good results.