GIS Dictionary

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color composite

[remote sensing] A color image made by assigning red, green, and blue colors to each of the separate monochrome bands […]

color map

[graphics computing] A set of values that are associated with specific colors. Color maps are most commonly used to display

color model

[graphics computing] Any system that organizes colors according to their properties for printing or display. Examples include RGB (red, green,

color ramp

[symbology] A range of colors used to show ranking or order among classes on a map.

color separation

1 [printing] In printing, the use of a separate printing plate for each ink color used. 2 [printing] The process

column

1 [database structures] An item in an attribute table. 2 [computing] The vertical dimension of a table. Each column stores

COM

[computing] Acronym for Component Object Model. A binary standard that enables software components to interoperate in a networked environment regardless

COM contract

[programming] The COM requirement that interfaces, once published, cannot be altered.

COM interface

[programming] A grouping of logically related virtual functions, implemented by a server object, allowing a client to interact with the

combinatorial operator

[mathematics] A kind of mathematical operator that interprets input with Boolean values. Combinatorial operators assign a different number to each

combo box

[computing] A user interface tool that combines the features of a text box and a drop-down list. For example, the

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