Geographic Information Systems: An Introduction
Background and history; the essential elements of a GIS; an overview; data structures; data acquisition; preprocessing; data management; manipulatioin and analysis; product generation; remote sensing and GIS; practical matters; applications; looking toward the future.
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Background and History
An Overview 4 Data Structures
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accuracy accuracy and precision aerial algorithm analysis applications arc-node boundaries calculate cartographic Chapter characteristics codes color common complex consider contour contour lines convert data layer data structure data values database management system derived determine developed digitizing tablet discussed disk display distance Earth Earth's surface elements elevation environmental estimate example Figure film functions geographic information system geometric graphic important input interpolation kinds land land-cover line segments manipulation map projection meters multispectral nodes operations original output photograph pixel polygon preprocessing problem procedures quadtree raster array raster cell raster data raster dataset records rectification region remote sensing remotely sensed data run-length encoded sampling satellite scale sensor spatial data spatial objects specified spectral storage stored tape techniques thematic types U.S. Geological Survey Universal Transverse Mercator users variables vector data structures