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《Geomatics World》 2017-04
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Research on Algorithms of Identifying Map-sheet Number of Cartographic Area

WU Yaohong;QIAO Junjun;HU Fengwei;School of Geodesy and Geomatics, Wuhan University;Zhejiang Academy of Surverying & Mapping;  
This artical provides three methods for identifying the map-sheet number for the drawing area.The methods are returning home position,segementing slope-assessment with the same side,projection inversion-assessment of inside map neat line based on the theoretical geographic grid.The cartographic drawing corresponding to a certain projection can be mapping correctly by these methods.The methods can be used to query the map sheet number of the geographic information data within the drawing area.
【CateGory Index】: P283
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