geographic data set One of seven geographic data types supported by ArcInfo. Geographic data sets in ArcInfo include coverages, grids, DBMS tables, tins, images, lattices, and CAD drawings.
A geographic data set containing boundaries, such as land-water boundaries, for use as a starting place in automating other geographic data sets. Templates save time ad increase the precision of spatial overlays.
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Join To connect two or more separate geographic data sets.
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Key An Item or column within an RDBMS that contains a unique value for each record in the database.
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In geoprocessing, raster refers to a digital representation of the extent of geographic data sets using "grid cells" in a matrix. A raster display builds an image from pixels, small square picture elements of coarse or fine resolution.
This facilitated access to the geographic data sets and allowed simple analyses to be performed without actually downloading data or software.
Map extent is specified in the coordinate system of the coverage or other geographic data set used. Typically, the extent of the geographic database (or a portion of it defined by a zoomed-in view) defines the map extent for display.
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- Publish (register) map services, images, geographic data sets, geoservices, spatial solutions, geographic and land reference material, ...
Map Units: The coordinate units in which a geographic data set is stored. Map units can be inches, centimeters, feet, meters, or decimal degrees.
Meridian: A line on the earth's surface which follows the shortest distance from pole to pole.
To enlarge and display greater detail of a geographic data set.
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A user-defined perspective on a coverage, grid, tin or image geographic data set specified, if applicable, by a coverage name and feature class or data set name, attributes of interest, a data classification scheme, ...
Rubber-sheet - A procedure to adjust the entities of a geographic data set in a non-uniform manner. From- and to- coordinates are used to define the adjustment.
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Georeferencing - The process of registering a geographic data set to an accepted coordinate system. See Geocoding.
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In a GIS, collections of geographic features are organized into data sets, such as land parcels, fire locations, buildings, orthophoto imagery, and raster-based digital elevation models (DEMs). Precisely defined geographic data sets are critical for ...
1. The rectangular limits (xmin,ymin and xmax,ymax) of the area of the Earth's surface displayed on a map. A map extent is usually specified in the coordinate system of a map layer or other geographic data set used.
The Launch ArcCatalog button can be helpful when you want to manage geographic data sets and view the metadata information.
 See also: Data Set, Geographic, Information, Spatial Data, Geographic Data
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