The Sub-map of raster map operation copies a rectangular part of a raster map into a new raster map. The user has to specify row and column numbers or XY-coordinates of the input map to indicate the part of the input map that should be copied into the new raster map.
This operation allows you to cut out a part of your raster map.
You can choose to specify the part of the input map that should be copied as:
The last option is only available when the input map is North-oriented.
Tips:
The Sub-map of raster map operation permanently reduces the area covered by a raster map.
Input map requirements:
No special input map requirements.
The option to specify coordinates is only available when the input map is North-oriented.
The operation can also be applied on all raster maps in a map list.
Domain and georeference of output map:
The output map uses the same domain as the input map.
The operation always creates a new georeference for the output map. When using the dialog box, the new georeference will always obtain the same name as the specified output map name. On the command line, you can specify a name for the output georeference yourself.
For more information, see ILWIS objects : georeferences.
When the operation is performed on an input map list, you will obtain an output map list. When the output map list is opened, the output raster maps will be (defined and) calculated.
See also:
Sub-map of raster map : dialog box
Sub-map of raster map : command line (1)