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Attributes are the (often) nongeographic, descriptive properties assigned to spatial entities. Attributes can be representative of any characteristic (e.g., physical, environmental, social, economic, etc.) of a spatial entity, and they can be assigned to any type of spatial data (e.g., points, lines, and areas for vector data; cells in a raster data set; and voxels or other volumetric spatial entities). Attribute information is used in making maps, distinguishing the characteristics of locations, and performing spatial analyses.

Vector Attributes

In the case of vector data, each feature in the data set is generally described using multiple attributes. Attributes are typically stored in attribute tables. Each row in the table contains information about individual geographic entities, and the columns in the table, usually called fields, contain information about attributes ...

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