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The seamless integration and fusion of current multisource and heterogeneous spatial data in the open and distributed environments is still a crucial task and has strong application requirements. Nowadays, heterogeneous data resource in different region can be shared but cannot be used through a uniform way. This paper adopts a novel and converse cognize process on real world, and puts forward an...
Since spatial data are widely available for many areas around the globe, they bring a great convenient to people's lives. And spatial database is used to arrange, analyze and view spatial data. In order to maintain real-time data, the way of spatial database updating was transformed from overall updating into incremental updating. Incremental updating only updates the change data in the map. The technologies...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.