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《Science of Surveying and Mapping》 2011-03
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An algorithm of polygon clipping against a circular window

LUO Wei,ZOU Zheng-rong(Department of Surveying and Geo-informatics,Central South University,Changsha 410083,China)  
An algorithm of polygon clipping against a circular window was given based on the correlative literatures.The basic principle is that single linked lists are used to store points of polygon and intersection of polygon and circular window.An algorithm of avoiding quadratic equation solution was used to calculating intersection.Comparing with the existing algorithm,the presented algorithm used less memory space and had higher speed.
【CateGory Index】: TP391.41
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【Citations】
Chinese Journal Full-text Database 5 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 HAN Hai-feng, YANG Yong-guo, FENG Jin-rui(School of Resources and Earth Sciences, China University of Mining and Technology, Xuzhou 221008, China);Preliminary study on algorithms of polygon's overlay analysis based on SVG[J];Science of Surveying and Mapping;2009-02
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4 Hu Qingwei,Xie Suning;Clipping of Digital Map Based a Polygon Window[J];Urban Geotechnical Investigation & Surveying;2006-06
5 Liu FengJie1,Li ChengMing2(1.TianJin Institute of Surveying and Mapping,TianJin 300381,China;2.Chinese Academy of Surveying and Mapping,Beijing 100039,China);A Fast Clipping Algorithm of 3D Urban Scene[J];Urban Geotechnical Investigation & Surveying;2007-03
6 LI Guo-zhong,SUN Ying(Dalian Research Institute of Surveying,Mapping & Geotechnical Investigation,Co.,Ltd.,116021,China);Study of Vector Dataset Spatial Overlay Based on Object-Relational Data Model[J];Geomatics & Spatial Information Technology;2007-01
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9 Tai Yingying Wang Qing Sun Kun(Department of Instrument Science and Technology, Southeast University, Nanjing , 210096, China);An Efficient Algorithm for Vector Polygon Overlaying without Topological Relation[J];Journal of Electronic Measurement and Instrument;2007-01
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