GIS Dictionary

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discrete raster

[data models] A raster that typically represents phenomena that have clear boundaries with attributes that are descriptions, classes, or categories. […]

disk

[hardware] A storage medium for recording digital information, consisting of a round, flat, spinning plate coated with a magnetic material.

disk cache

[ESRI software] In ArcGlobe, the folder on a computer’s disk drive where ArcGlobe stores layer cache files.

DispID binding

[non-ESRI software] A type of early binding in which DispID properties and methods are accessed at compile time, so there’s

displacement link

[ESRI software] In ArcGIS, a link created to define the source and destination coordinates for a spatial adjustment. Links are

displacement vector

[ESRI software] In Survey Analyst – Cadastral Editor, the difference in the coordinates of a point between successive least-squares adjustments.

display

[ESRI software] Often used to refer to subclasses of the Display abstract class. For example, “when drawing to the display”

display projection

1 [map projections] The coordinate system used for displaying geographic data. Examples include the data frame in ArcMap and the

display scale

[map display] The scale at which data is rendered on a computer screen or on a printed map.

display type

[ESRI software] The mode of command representation on a computer screen. The display type controls whether you see a command’s

display unit

[map display] The unit of measure used to render dimensions of shapes, distance tolerances, and offsets on a computer screen

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