grdcut

       grdcut - Extract a subregion out of a .grd file

SYNOPSIS

       grdcut           input_file.grd          -Goutput_file.grd
       -Rwest/east/south/north[r] [ -V ]

DESCRIPTION

       grdcut will produce a new output_file.grd file which is  a
       subregion  of  input_file.grd.  The subregion is specified
       with -Rwest/east/south/north as  in  other  programs;  the
       specified   range   must   not   exceed   the   range   of
       input_file.grd. If in doubt, run grdinfo to  check  range.
       Complementary to grdcut there is grdpaste, which will join
       together two grdfiles along a common edge.

       input_file.grd
              this is the input .grd format file.

       -Goutput_file.grd
              this is the output .grd format file.

       -R     west, east, south, and north specify the Region  of
              interest. To specify boundaries in degrees and min­
              utes [and  seconds],  use  the  dd:mm[:ss]  format.
              Append  r if lower left and upper right map coordi­
              nates are given instead of wesn.  This defines  the
              subregion to be cut out.

OPTIONS

       -V     Selects  verbose  mode,  which  will  send progress
              reports to stderr [Default runs "silently"].

EXAMPLES

       Suppose you have used surface to grid ship gravity in  the
       region  between  148E  - 162E and 8N - 32N, and you do not
       trust the gridding near the edges, so  you  want  to  keep
       only the area between 150E - 160E and 10N - 30N, then:

       grdcut    grav_148_162_8_32.grd   -Ggrav_150_160_10_30.grd
       -R150/160/10/30 -V

SEE ALSO

       grdpaste(l), grdinfo(l), gmt(l)