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Давхарга

layer or coverage

ГМС-ийн орон зайн сан дахь ижил координатын системд хамаарах сэдвүүд.

A data model for storing geographic features. A coverage stores a set of thematically associated data considered to be a unit. It usually represents a single layer, such as soils, streams, roads, or land use. In a coverage, features are stored as both primary features (points, arcs, polygons) and secondary features (tics, links, annotation). Feature attributes are described and stored independently in feature attribute tables.

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