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Discrete Global Grid : ウィキペディア英語版 | Discrete Global Grid A Discrete Global Grid (DGG) consists of a set of regions that form a partition of the Earth’s surface, where each region has associated with it a single point contained in that region. A Discrete Global Grid System (DGGS) is a series of discrete global grids, usually consisting of increasingly finer resolution grids. Discrete Global Grids are used as the geometric basis for the creation of geospatial data structures. Each region/point combination in the grid is a called a "cell," and depending on the application, data objects or values may be associated with the cells themselves, or with either the cell regions or cell points. DGGs have been proposed for use in a wide range of geospatial applications, including vector and raster location representation, data fusion, and spatial databases.〔 == Examples ==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Discrete Global Grid」の詳細全文を読む
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