| 一种基于条件极值的建筑多边形直角化的方法 |
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| 引用本文： | 刘鹏程,艾廷华,胡晋山.一种基于条件极值的建筑多边形直角化的方法[J].测绘与空间地理信息,2008,31(5). |
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| 作者姓名： | 刘鹏程 艾廷华 胡晋山 |
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| 作者单位： | 1. 武汉大学,资源与环境科学学院,湖北,武汉,430079
2. 武汉大学,资源与环境科学学院,湖北,武汉,430079;徐州师范大学,国土信息与测绘工程系,江苏,徐州,221116 |
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| 摘 要： | 在地图综合中,许多建筑多边形化简的方法都是针对于直角多边形的,建筑多边形的直角化也是地图数据在进入GIS之前对数据完整性检验的必经过程.本文介绍了一种利用条件极值来计算直角地物中各点坐标改正数的方法.该方法成功用于大比例综合缩编软件GenTool,并获得了满意的效果.
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| 关 键 词： | 条件极值 直角化 误差 校正 |
Rectangularity of Building Polygon Based on Condition-Extremum |
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| LIU Peng-cheng,AI Ting-hua,HU Jin-shan.Rectangularity of Building Polygon Based on Condition-Extremum[J].Geomatics & Spatial Information Technology,2008,31(5). |
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| Authors: | LIU Peng-cheng AI Ting-hua HU Jin-shan |
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| Institution: | 1.School of Resource and Environment Science;Wuhan University;Wuhan 430079;China;2.Territory Resource Information and Surveying engineering Department;Xuzhou Normal University;Xuzhou 221116;China |
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| Abstract: | In map generalization,many algorithms of simplification of building polygon are only applied on rectangularity of building polygon.The processing of rectangularity of building polygons is indispensable before graphic data enters GIS database.The paper proposes the method based on condition-extremum to calculate coordinate displacement-value and realize rectangularity of building polygon.The solution has been proved effective in GenTool,which is the software for large-scale map generalization. |
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| Keywords: | condition-extremum rectangularity error revision |
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