| 制图综合中基于中心地思想的线状要素自动取舍算法研究 |
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| 引用本文： | 苏宏瑞,崔先国,彭玉艳.制图综合中基于中心地思想的线状要素自动取舍算法研究[J].测绘科学,2007,32(1):40-42. |
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| 作者姓名： | 苏宏瑞 崔先国 彭玉艳 |
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| 作者单位： | 山东科技大学地球信息科学与工程学院,山东青岛,266510;临沂市城市建设勘察测绘院,山东临沂,276003 |
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| 摘 要： | 地图综合的重点是地理要素选取与图形概括。地理要素选取的关键在于多属性指标的综合考虑。本文在引入中心地概念的基础上,比较了中心地与地理要素的相似之处,尝试将其应用到制图综合中,结合主成分分析方法,对地理要素的多个指标综合考虑,提出了基于中心地思想和主成分分析的线状地理要素地图综合自动取舍的算法,并通过实例验证了该算法。
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| 关 键 词： | 制图综合 地理要素 中心地 主成分分析 |
| 文章编号： | 1009-2307(2007)01-0040-03 |
| 修稿时间： | 2005-09-23 |
Research on automatically accepting or rejecting linear geographic elements based on central place conception in cartographic generalization |
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| SU Hong-rui,CUI Xian-guo,PENG Yu-yan.Research on automatically accepting or rejecting linear geographic elements based on central place conception in cartographic generalization[J].Science of Surveying and Mapping,2007,32(1):40-42. |
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| Authors: | SU Hong-rui CUI Xian-guo PENG Yu-yan |
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| Abstract: | It is one of the most important factors in cartographic generalization to accept or reject geographic elements.The key problem for geographic element selection is synthetic consideration of multi attributes indexes.In this paper we introduce the concept of central place and analyze the similar characteristic between central place and geographic element,and trying to apply it to cartographic generalization.Combing with principal component analysis(PCA)method,a new algorithm to automatically accept or reject the linear features in cartographic generalization based on the central place and PCA method has been put forward.And we validate it through the experiment. |
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| Keywords: | cartographic generalization geographic element central place principal component analysis |
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