By creating an attribute map of a point map, the class name or ID of each point in the original map is replaced by the value, class or ID found in a certain column in an attribute table.
A point map using a domain Class or ID, can have extra attribute information on the classes or identifiers in the map. These attributes are stored as columns in an attribute table. You can check whether an attribute table is linked to the point map or to its domain through the Properties dialog box of the map or the domain.
Dialog box options:
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Input point map: |
Select an input point map. Open the list box and select the desired input map, or drag a point map directly from the Catalog into this box. The input map should be a domain Class or ID map. |
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Table: |
By default, the attribute table linked to the selected input map or to its domain is shown. In case you want to use another table, select a table with the same domain as the input map from the list box. |
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Attribute: |
Select an attribute column from the attribute table. |
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Output point map: |
Type a name for the output point map that will contain the attribute values. |
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Description: |
Optionally, type a description for the output map. The description will appear in the status bar of the Main window when moving the mouse pointer over the map in a Catalog, and in the title bar of a map window when the output map is displayed. If no description is supplied, the output map will use its own definition as description. |
When you click the Show button, the dependent output map will be defined, calculated and shown. When you click the Define button, the dependent output map will only be defined; if necessary the map will be calculated later, for instance when the map is opened to be displayed.
See also: