NAME

     rsiz - Resize Seismic Records and Traces

SYNOPSIS

     rsiz [-Ninput] [-Ooutput] [-RXrx] [-RTrt] [-DXdx] [-V]

DESCRIPTION

     rsiz will resize seismic  records  and  traces  by  a  ratio
     entered  for  traces  and  a ratio entered for samples.  The
     inputs are seismic records and command line arguments.  Pro-
     gram rsiz does not preserve input header information at this
     time.  Until this is corrected only the following  positions
     will be updated:
         Line Header:
                number of traces per record
                number of samples per trace
                group interval
                sample interval
         Trace Header:
                record number
                trace number
                permanent record number
                permanent trace number
                all other positions will be set to zero

  Command line arguments
     -N input
          Enter the USP-formatted input dataset name after typing
          -N.

     -O output
          Enter the USP-formatted output dataset name after  typ-
          ing -O.

     -RX rx
          Enter the ratio of the input trace spacing to the  out-
          put  trace  spacing after typing -RX.  The dataset will
          be resized by an rx to 1.0 ratio in  the  trace  direc-
          tion.  For example, if rx is 2, the number of traces on
          output will be twice the number of traces on input.  If
          rx  is  .5, the number of traces on output will be half
          as many as the number of traces on input.

     -RT rt
          Enter the ratio of the input sample spacing to the out-
          put  sample spacing after typing -RT.  The dataset will
          be resized by an rt to 1.0 ratio in the  sample  direc-
          tion.   For  example, if rt is 2, the number of samples
          on output will be twice the number of samples on input.
          If  rt  is  .5, the number of samples on output will be
          half as many as the number of samples on input.

     -DX dx
          Enter the output trace spacing in feet or meters  after
          typing -DX.  The default is the input line header group
          interval value * (1./rx).

     -V   Enter -V for a verbose printout.

SEE ALSO

     vtrsiz

BUGS

     None known.

AUTHOR

     Mary Ann Thornton

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.