NAME
r.region - Program to manage the boundary definitions
for a raster map.
(GRASS Raster Program)
SYNOPSIS
r.region
r.region help
r.region [-cd]
map=name
[region=name]
[raster=name]
[vector=name]
[3dview=name]
[n=value] [s=value]
[e=value] [w=value]
[align=name]
DESCRIPTION
The r.region program allows the user to manage the boundaries
of a raster map. These boundaries can be set by the user directly
and/or set from a region definition file (stored under the
windows directory in the user's current mapset), a raster
or vector map, or a 3dview file.
Flags:
- -c
- Set the boundaries to those of the current region.
- -d
- Set the boundaries to those of the default region.
Parameters:
- map=name
- Raster map whose boundaries are to be set
- region=name
- Obtain the boundaries from the specified region file
- raster=name
- Obtain the boundaries from the specified raster map
- vector=name
- Obtain the boundaries from the specified vector map
- 3dview=name
- Obtain the boundaries from the specified 3dview file
- n=value
- Set map coordinate value for the map's northern edge
to value
- s=value
- Set map coordinate value for the map's southern edge
to value
- e=value
- Set map coordinate value for the map's eastern edge
to value
- w=value
- Set map coordinate value for the map's western edge
to value
- align=name
- Set the current resolution equal to that of the named
raster map, and align the boundaries to a row and
column edge in the named map. Alignment only moves the
existing boundaries outward to the edges of the next
nearest cell in the named raster map -- not to the named
map's edges. To perform the latter function, use the
raster=name option.
NOTE
After all updates have been applied, the raster map's resolution
settings are recomputed from the boundaries and the number of rows and
columns in the raster map.
SEE ALSO
r.support
g.region
AUTHOR
Glynn Clements
Based upon g.region
Last changed: $Date$