NAME

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

KEYWORDS

       raster, resample

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 12:09:06 -0700 (Fri, 16 May 2008) $

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       © 2003-2013 GRASS Development Team