DESCRIPTION

       The  --coord-unit  option  is  designed  to allow use of databases that
       exclude the CoordUnit field.  This field is probably the same  for  all
       traces in the majority of SEGY data files, so most segy-py drivers will
       want to exclude coordunit from the short list  (see  segysql.py).   The
       values are taken from page 14 of the SEG-Y Rev 1 specification

         -1 = Follow field 89-90 of the trace header
          1 = Length (meters or feet) [NOT supported]
          2 = Seconds of arc
          3 = Degrees, minutes, seconds (DMS) [NOT SUPPORTED]

       usage: segysqlgmt.py [options]

   options:
       --version
              show program's version number and exit

       -h, --help
              show this help message and exit

       -d DBFILENAME, --database=DBFILENAME
              Database  containing  imported  segy  file and trace header info
              [default: segy.db]

       -m MINFILEKEY, --min-file-key=MINFILEKEY
              Set this to start processing at a certain file  index  [default:
              none]

       -M MAXFILEKEY, --max-file-key=MAXFILEKEY
              Set  this  to  end  processing at a certain file index [default:
              none]

       -F FLEDERMAUS, --fledermaus=FLEDERMAUS
              Output a text file suitable for  IVS  Fledermaus.   Skips  other
              types. [default: none]

       -P FLEDERMAUSPTS, --fledermaus-pts=FLEDERMAUSPTS
              Output  a  text  file  suitable for IVS Fledermaus point import.
              Uses --key.  Skips other types. [default: none]

       -l SHOTLINEFILENAME, --line-file=SHOTLINEFILENAME
              Where to write the unique  shot  location  line  info  [default:
              shot-locations.psxy]

       -L, --skip-line
              Skip the shot line points [default: False]

       -s SHOTTEXTFILENAME, --shot-label-file=SHOTTEXTFILENAME
              Where  to  write  the  shot  labels for every Nth shot [default:
              shot-labels.pstext]

              Divide  by the scaler coord field in the trace header to get the
              true lat/lon

       -x, --flip-x
              Multiply the x coordinate by -1

       -y, --flip-y
              Multiply the x coordinate by -1

       -k KEY, --key=KEY
              segyTrace label to use for the shot text.  e.g.  traceNumber  or
              EnsembleNo [default: Shotpoint]

       -c FORCECOORDUNIT, --coord-unit=FORCECOORDUNIT
              Force  a  SEGY coordinate system, e.g. 2 == seconds of arc.  Use
              this for short format databases. [default: follow file]

       -H FORCEHEMISPHERE, --force-hemisphere=FORCEHEMISPHERE
              Force hemisphere for shots  that  have  bad  navigation.   0-NW,
              1-NE,  2-SW,  3-SE

       -u, --from-utm
              Assume x and y are in UTM and convert to Long/Lat

       -z UTMZONE, --utm-zone=UTMZONE
              Specify the UTM zone if converting from UTM to Long/Lat

       -Z, --skip-zeros
              Skip points that have 0 0 stored in the x,y fields

       --trace-key=TRACEKEY
              Which  key  to  use for limiting trace range.  Shotpoint, Ensem-
              bleNo, LineSeqNo, etc

       --trace-min=TRACERANGEMIN
              What is the first number to  include?   Defaults  to  the  first
              trace

       --trace-max=TRACERANGEMAX
              What is the last number to include?  Defaults to the end trace

       -v, --verbose
              how  much  information  to  give.   Specify  multiple  times  to
              increase verbosity

       --verbosity=VERBOSITY
              Specify verbosity.  Should be in the range of 0...4 (None...Bom-
              bastic)

       --noisy
              Go for the max verbosity [8]