NAME

     lmpicks  - stuff Landmark picks into SIS static word

SYNOPSIS

     lmpicks [ -Nntap ] [ -Ootap ] [ -Potap ] [ -swiswd ] [ -tdt0
     ] [ -scscl ] [ -fttrc1 ] [ -fssht1 ] [ -sttrc2 ] [ -sssht2 ]
     [ -ppadval ] [ -nsnstr ] [ -nenetr ] [ -rsnrst ] [ -renred ]
     [ -V ] [ -? ]

DESCRIPTION

     lmpicks reads a Landmark pick file line by line and an input
     seismic data
      set trace by trace, extracts the pick value from  the  pick
     file  and stuffs the difference between a time datum and the
     pick into a static word in the trace header.

     The program expects a pick for every  shot  along  the  line
     even  if  the  picked horizon does not extend to the ends of
     the line or there are breaks in the  picked  horizon.   When
     exporting  the  pick file make sure you set the value of the
     pick to -15999.0 (rather than the default of  10e37).   This
     will  insert  a  pick  for every shot but non-picked entries
     will have the value of -15999.

     lmpicks gets both its data and its parameters  from  command
     line  arguments.  These arguments specify the input, output,
     the pick file name, the start and end  traces,  and  verbose
     printout, if desired.

  Command line arguments
     -N ntap
          Enter the input data set name or file immediately after
          typing -N unless the input is from a pipe in which case
          the -N entry must be omitted.  This input  file  should
          include the complete path name if the file resides in a
          different directory.  Example -N/b/vsp/dummy tells  the
          program to look for file 'dummy' in directory '/b/vsp'.

     -O otap
          Enter the output data  set  name  or  file  immediately
          after typing -O.  If this entry is left off the command
          line a pipe out is assumed.

     -P otap
          Enter the name of the Landmark pick file.  This must be
          a formatted flat file.

     -sw iswd
          Enter the choice of static word in  the  trace  header.
          Default = 125


     -td t0
          Enter the datum time (ms).  Default  =  0  or  constant
          start time for each trace.

     -sc sc
          Enter the scale factor to be applied to  all  the  pick
          times.  Default = 1.0

     -ft trc1
          Enter the first trace number for which there is a  shot
          point.  Default = 1

     -fs sht1
          Enter the first shot point number at the  first  trace.
          Default = 1

     -st trc2
          Enter the second trace number for which there is a shot
          point.   Default  =  3  (usually  there will be 2 depth
          points or stacked traces per shot)

     -ss sht2
          Enter  the  shot  point  number  at  the  above  trace.
          Default  =  2  (usually there will be 2 depth points or
          stacked traces per shot)

     -p padval
          Enter the value in the pick file indicating that a pick
          has  been  padded but is not valid as a pick and should
          be ignored. Default = -15999.

     -ns nstr
          Enter the start trace number.  The default is the first
          trace  of the record. Note that use of record and trace
          limits are dangerous and are only for trying  to  limit
          the input data to match the pick file shot points.

     -ne netr
          Enter the end trace number. The  default  is  the  last
          trace of the record.

     -rs nrst
          Enter start record number.  Default value is the  first
          record.

     -re nred
          Enter end record number.  Default value is last record.

     -V   Enter the command line argument '-V' to get  additional
          printout.


     -?   Enter the command line  argument  '-?'  to  get  online
          help.  The  program terminates after the help screen is
          printed.

BUGS

     This is by far the worst program I've ever written

SEE ALSO

     flatten

AUTHOR

     Nobody in his right mind would admit to coding  this  except
     Paul Gutowski

COPYRIGHT

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