Liu De’er 1,2) ;Lü Guonian 1) ;Lan Xiaoji 2) ;and Wang Yongjun 1)
1)Jiangsu Provincial Key Laboratory of GISC, Nanjing Normal University, Nanjing 2100462)School of Architectural and Survey Engineering,Jiangxi University of Science and Technology,Ganzhou 341000
Abstract:Today, urban development is so rapid that the updated cycle of geodatabase should be shortened. After studying existing results based on GIS and CAD models,the updating system based on Check Out/In is put forward. By use of the CAD’s mapping functions fully, new surveyed data are inserted into the area to be updated, and saved to a sub-geodatabase. At the same time,its parent geodatabase will detect it and respond to automaticly. Experimental results certify that this method can update the city’s fundamental geodatabase more rapidly.