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矢量多边形栅格化的保积优化模型
Authors
周成虎
杨辽
欧阳
覃彪
Publication date
1 January 2006
Publisher
Abstract
矢量数据栅格化是地理信息系统中的基础问题,通常的矢栅转换化算法致力于保证矢量多边形在转换后的形状特征,而忽视了多边形面积的损益.提出了一种基于面积补偿优化原则的保积转换算法,根据多边形与其边界格元的空间关系特征,采用邻域补偿的原则确定边界格元属性,并对其进行全局优化平衡.数值实验表明,该算法不仅保证了栅格化后多边形面积变化最小,且对多边形的形状和空间结构具有一定的自适应性
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Institutional Repository of Xinjiang Institute of Ecology and Geography, CAS
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Last time updated on 29/11/2016