GIS Dictionary

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active theme

[ESRI software] In ArcView 3.x, the theme in a view document to which button and tool actions or corresponding menu […]

ActiveX Connector

[non-ESRI software] A type of ArcIMS Application Server Connector that is a Component Object Model (COM) dynamic link library (DLL)

acutance

[photogrammetry] A measure, using a microdensitometer or other instrument, of how well a photographic system shows sharp edges between contiguous

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