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r.region

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

NAME

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

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: 2009-05-01 12:24:06 +0200 (Fri, 01 May 2009) $ Full index (C) 2003-2010 GRASS Development Team R.REGION(1)
 
 
 

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