NAME

     gentime - Create turning-ray two-way travel-time maps in usp
     format.

SYNOPSIS

     gentime [ -Nvtap ] [ -Orayfans ] [ -xbegxbeg ] [ -xincxinc ]
     [  -xendxend  ]  [ -zsrczsrc ] [ -vmutevmute ] [ -angang ] [
     -hlfaphlfap ] [ -dangdang ] [ -nrsmpnrsmp ] [ -isecisec ]  [
     -nointnoint  ] [ -ntskipntskip ] [ -dtraydtray ] [ -traytray
     ] [ -ismooismoo ] [ -?f4 ] [ -V ] [ -? ]

DESCRIPTION

     gentime is designed to read usp-formatted velocity field and
     create usp-formatted travel time maps.

  Command line arguments
     gentime gets both its data and its parameters  from  command
     line arguments.

     -Nvtap
          In put velocity field.

     -Orayfans
          Output travel-time maps (two-way).

     -xbegxbeg
          Begin shooting rays at this x-location.

     -xincxinc
          Ray-tracing increment.

     -xendxend
          End shooting rays at this x-location.

     -zsrczsrc
          Shot depth.

     -vmutevmute
          Mute velocity for fans.

     -angang
          Emergence angle.

     -hlfaphlfap
          Size of fans.

     -dangdang
          Angle increment.

     -nrsmpnrsmp
          Maximum ray interpolation increment.

     -isecisec
          Set to be greater than 0, to travel-time maps to be  in
          seconds.

     -nointnoint

     -ntskipntskip

     -dtraydtray
          Raytrace dt incr (ms) def=2.

     -traytray
          Max two-way time (def=2).

     -ismooismoo

     -?

     -V

     -?

BUGS

     No bugs known at present.

SEE ALSO

     kray, latresbn

AUTHOR

     Dan Whitmore.

COPYRIGHT

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