GIS Dictionary

[map projections] A graphical representation of the spatial distortion at a particular map location. The indicatrix is the figure that […]

[cartography] Acronym for topographic line map. A map that uses line contours to show elevations and depressions of the earth’s

[programming] Acronym for thread neutral apartment. An apartment that has no threads permanently associated with it; threads enter and leave

Of an arc’s two endpoints, the last one digitized. From- and to-nodes give an arc left and right sides and,

[geography] A formulation of the concept of spatial autocorrelation by the geographer Waldo Tobler (1930-), which states “Everything is related

[ESRI software] A line of encrypted code generated by an authenticating service that allows a client to access a Web

[data editing] The minimum or maximum variation allowed when processing or editing a geographic feature’s coordinates. For example, during editing,

1 [software] A command that requires interaction with the GUI before an action is performed. For example, a zoom tool

[software] A graphical user interface (GUI) with buttons that allow users to execute software commands.

[ESRI software] In ArcGIS, an object that contains toolsets and geoprocessing tools. It takes the form of a .tbx file

[ESRI software] In ArcToolbox (part of ArcGIS 8.3 and earlier versions), a hierarchical view of toolsets and tools grouped by