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r.resample

man page of r.resample

r.resample: GRASS raster map layer data resampling capability.

NAME

r.resample - GRASS raster map layer data resampling capability.

KEYWORDS

raster
SYNOPSIS
r.resample r.resample help r.resample [-q] input=string output=string [--overwrite] [--verbose] [--quiet] Flags: -q Quiet --overwrite Allow output files to overwrite existing files --verbose Verbose module output --quiet Quiet module output Parameters: input=string Name of an input layer output=string 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 containing the results of the resampling. The category values in the new raster output map layer will be the same as those in the original, except that the resolution and extent of the new raster output map layer will match those of the current geographic region settings (see g.region). r.resample is intended for reinterpolation of continuous data to a different resolution rather than for interpolation from scattered data (use the v.surf.* modules for that purpose).

NOTES

The method by which resampling is conducted is "nearest neighbor" (see r.neighbors). The resulting raster map layer will have the same resolution 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 history file associated with the original raster map layer for the resulting 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 created by r.resample.

SEE ALSO

g.region, r.mapcalc, r.mfilter, r.neighbors, r.rescale

AUTHOR

Michael Shapiro, U.S.Army Construction Engineering Research Laboratory Last changed: $Date: 2008-05-16 21:09:06 +0200 (Fri, 16 May 2008) $ Full index (C) 2003-2010 GRASS Development Team R.RESAMPLE(1)
 
 
 

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