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《Mine Surveying》 2017-04
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Research on the development of coordinates and latitude and longitude in land requisition

Fan Jiuguo;Wang Quanquan;Ningxia Water Resources & Hydropower Survey Design & Research Institute Co.Ltd;  
In view of the standardization and rationalization of land use proposed by the state,construction land was carried out the land acquisition and landing and put on record in the relevant land sector providing the consistent coordinate data and the latitude and longitude data for land sector.In the paper,according to the CAD development language,coordinates annotation and latitude and longitude annotation tools were designed and developed,the program had been adjusted,according to the actual project,the precision of tools were compared and analyzed.Finally,the data obtained by the latitude and longitude annotation tools complied with national regulatory requirements,could be used in the project to obtain the latitude and longitude data.
【Key Words】: land expropriation latitude and longitude marking aotulisp
【CateGory Index】: P209;P226.3
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