r.resample(1grass) GRASS GIS User's Manual r.resample(1grass)
NAME
r.resample - GRASS raster map layer data resampling capability.
KEYWORDS
raster, resample, nearest neighbor
SYNOPSIS
r.resample
r.resample --help
r.resample input=string output=string [--overwrite] [--help] [--ver-
bose] [--quiet] [--ui]
Flags:
--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog
Parameters:
input=string [required]
Name of an input layer
output=string [required]
Name of an output layer
DESCRIPTION
r.resample resamples the data values in a user-specified raster input
map layer name (bounded by the current geographic region and masked by
the current mask), and produces a new raster output map layer name con-
taining the results of the resampling. The category values in the new
raster output map layer will be the same as those in the original, ex-
cept that the resolution and extent of the new raster output map layer
will match those of the current geographic region settings (see g.re-
gion). r.resample is intended for resampling of discrete raster data
(such as land cover, geology or soil type) to a different resolution.
Continuous data (such as elevation or temperature) usually require
reinterpolation when changing resolution, see r.resamp.interp.
NOTES
The method by which resampling is conducted is "nearest neighbor" (see
r.neighbors). The resulting raster map layer will have the same reso-
lution as the resolution of the current geographic region (set using
g.region).
The resulting raster map layer may be identical to the original raster
map layer. The r.resample program will copy the color table and his-
tory file associated with the original raster map layer for the result-
ing raster map layer and will create a modified category file which
contains description of only those categories which appear in resampled
file.
When the user resamples a GRASS reclass file, a true raster map is cre-
ated by r.resample.
SEE ALSO
g.region, r.mapcalc, r.mfilter, r.neighbors, r.rescale, r.resamp.in-
terp
Overview: Interpolation and Resampling in GRASS GIS
AUTHOR
Michael Shapiro, U.S.Army Construction Engineering Research Laboratory
SOURCE CODE
Available at: r.resample source code (history)
Accessed: unknown
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GRASS 7.8.7 r.resample(1grass)
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