In order to explore the technology of collaborative updating of different scale topographic data,this paper takes 1∶10000 scale topographic data and 1∶50000 scale topographic data of Heilongjiang province as research objects and conducts data comparison,data integration and so on to achieve 1∶10000 scale topographic data and 1∶50000 topographic data collaborative updating.
collaborative updating1∶10000 scale topographic data1∶50000 scale topographic data