NAME¶

r.region - Sets the boundary definitions for a raster map.

KEYWORDS¶

raster, metadata

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] [--verbose] [--quiet]

Flags:¶

-c

 

Set from current region

-d

 

Set from default region

--verbose

 

Verbose module output

--quiet

 

Quiet module output

Parameters:¶

map=name

 

Raster map to change

region=name

 

Set region from named region

raster=name

 

Set region to match this raster map

vector=name

 

Set region to match this vector map

3dview=name

 

Set region to match this 3dview file

n=value

 

Value for the northern edge (format dd:mm:ss{N|S})

s=value

 

Value for the southern edge (format dd:mm:ss{N|S})

e=value

 

Value for the eastern edge (format ddd:mm:ss{E|W})

w=value

 

Value for the western edge (format ddd:mm:ss{E|W})

align=name

 

Raster map to align to

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. The align parameter sets 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.

NOTES¶

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. The n= value may also be specified as a function of its current value: n=n+ value increases the current northing, while n=n- value decreases it. This is also true for s= value, e= value, and w=value.

EXAMPLES¶

Assign absolute coordinates to map: r.region map=mymap n=220750 s=220000 w=638300 e=639000 Shift map (using offset, here by 100 map units in two directions): r.region map=mymap n=n+100 e=e+100 w=w+100 s=s+100

SEE ALSO¶

r.support g.region

AUTHOR¶

Glynn Clements Based upon g.region Last changed: $Date: 2013-04-18 07:56:53 +0200 (Thu, 18 Apr 2013) $ Full index © 2003-2014 GRASS Development Team