Attribute map of raster map

Functionality

By creating an attribute map of a raster map, the class name or ID of each pixel in the original map is replaced by the value, class or ID found in a certain column in an attribute table.

A raster map using a Class or ID domain, can have extra attribute information on the classes or identifiers in the map. These attributes are stored in columns in an attribute table. The attribute table can be linked to the map to which it refers, or to the domain of the map. You can check whether an attribute table is linked to the raster map or to its domain through the Properties dialog box of the map or the domain.

Example of creating an attribute map:

In the pictures below, an attribute map for pH is created for units A, B, C, and D in the input map..

  

Input map:

Attribute table:

Output attribute map:

Input map requirements:

An attribute map can be created from any column with a value, class or ID domain, but not from a column using domain String.

Domain and georeference of output map:

The output map uses the same domain as the specified attribute column.

The output map uses the same georeference as the input map.

Tips:

  1. This operation creates a permanent attribute map. To temporarily display an attribute map, you can select the option 'Attribute' in the Display Options dialog box when displaying a raster map.
  2. The colors in which an attribute map is displayed, depend on the domain of the specified attribute column:
  3. You can also create attribute maps of polygon maps, attribute maps of segment maps and attribute maps of point maps.

See also: