Application Research on the Geographical Survey Spatial Database and its Key Technology

Abstract:

Spatial data is used to indicate the location, shape, size and its distribution information of the spatial entity in many respects. It can be used to describe the target from the real world, as it has the characteristics of position, qualitative and the relationship between time and space. Position refers to the known coordinates of space target is the only space location. Qualitative refers to the natural attributes of space target with which the location of target. Time refers to the space target which changes over time. Spatial relations are usually expressed using topological relations. Spatial data is a kind of point, line, face and entities such as the basic spatial data structure to represent the people rely on the data of the natural world. And the key technologies of the survey spatial database are the SQL technology, the arcSED technology, storage and indexing.

• Periodical: Applied Mechanics and Materials (Volumes 644-650)
• Pages: 2355-2358
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.644-650.2355
• Online since: September 2014
• Authors: Dong Juan Gu*
• Keywords: Application Research, Geographical Survey Spatial Database, Key Technology

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