GIS Dictionary

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event handling

[programming] Watching for events that are broadcast by another class, and taking action when they occur.

event layer

[ESRI software] In ArcGIS, a layer created from an event table.

event overlay

[linear referencing] In linear referencing, an operation that produces a route event table that is the logical intersection or union

event table

[linear referencing] A data source containing location information in tabular format (called events) that is used to create a spatial

event theme

[ESRI software] In ArcView 3.x, a spatial data theme created from an event table.

exception

[ESRI software] An error that is an acceptable violation of a topology rule. In ArcMap, for example, a cul-de-sac is

executable file

A binary file containing a program that can be run as a stand-alone application. In the Microsoft Windows program, executable

exit state

[ESRI software] The condition of a tool upon closure. If a tool fails due to a programming bug or command

explode

[ESRI software] An editing process that separates a multipart feature into its component features, which become independent features.

exponent

[mathematics] In mathematics, a number that indicates how many times a base value is multiplied by itself. Exponents are usually

export

[computing] To move data from one computer system to another, and often, in the process, from one file format to

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