GIS Dictionary

[ESRI software] A list of labels that could not be placed, generated during the process of converting labels to annotation. This list allows the manual placement or deletion of these … Read more

[spatial analysis] A method of defining the rings in an analysis so that the values inside the rings are cumulative. For example, if you had an analysis with three concentric … Read more

1 [analysisgeoprocessing] A spatial operation in which two or more maps or layers registered to a common coordinate system are superimposed, either digitally or on a transparent material, for the … Read more

[ESRI software] In ArcGIS 8.3 and previous versions, an ArcToolbox wizard that uses overlay operations to create a new coverage by computing the geometric intersection of two coverages: an input … Read more

1 [cartography] In cartography, portraying cartographic updates on a map by printing new or modified information over the original cartography, usually in a distinctive color. 2 [printing] In offset printing, … Read more

1 [ESRI software] In network datasets, a type of junction connectivity policy in which the way junctions connect to other junctions is not based on the existing edge connectivity policy; … Read more

[data structures] The portion of an arc digitized past its intersection with another arc.

[data management] In ArcGIS, a lower-resolution image created to increase display speed and reduce CPU usage when viewing a mosaicked image from a mosaic dataset.

[cartography] A generalized, smaller-scale map that shows the limits of another map’s extent along with its surrounding area.

[3D GIS] Coarsest representation of the terrain dataset, intended for fast drawing at small scales.

[ESRI software] A secondary window in ArcMap data view that shows the full extent of the data, without changing the map extent. A red box in the window represents the … Read more