Sub-map of segment map

Functionality

The Sub-map of segment map operation copies a rectangular part of a segment map into a new segment map.

The user has to specify minimum and maximum XY-coordinates for the new segment map. When the input map uses a coordinate system of type latlon, you need to specify minimum and maximum Latitudes and Longitudes.

The Sub-map of segment map operation allows you to change the coordinate boundaries of your segment map. The output segment map can be smaller than the input map, but it can also be larger.

If the output map is smaller than the input map, then input segments are clipped at the specified output coordinate boundaries and subsequently copied into the new output segment map.
If the output map is larger than the input map, all input segments are copied, and extra space is created around the segments of the original segment map.

Tip:

The Sub-map of segment map operation permanently reduces or enlarges the area covered by a segment map.

To temporarily reduce the area of a segment map, you can zoom in on the segment map in a map window. The result can be stored as a map view.
To temporarily enlarge the area of a segment map, i.e. to create white space around a segment map in a map window for annotation purposes, you can use the Extend Window command on the Options menu in the map window, or you can zoom in on the segment map and drag a rectangle partly outside the map window. This result can also be stored as a map view.

Requirements for input segment map:

No special input map requirements.

Domain and coordinate system of output map:

The output segment map uses the same domain as the input segment map.

The output segment map uses the same coordinate system as the input segment map; the coordinate boundaries for this output segment map are user-defined (XY-coordinates or LatLon-coordinates).

Tips:

To selectively copy segments with a specific code from one segment map into a new segment map, see Mask segments.
To combine two or more segment maps into one output map, use the Glue segment maps operation; for each input map, a mask can be specified, furthermore the coordinate boundaries for the output map can be specified.
The coordinate boundaries of a segment map can also be adapted from within the segment editor, see Segment editor : Boundaries of map.