debian man page for x_setup

X_SETUP(1gmt)						       Generic Mapping Tools						     X_SETUP(1gmt)

NAME
       x_setup - Determine Pairs of Legs that need Cross-Over Checking

SYNOPSIS
       x_setup [ -Llegfile ] [ -Rwest/east/south/north ]

DESCRIPTION
       x_setup	scans  the gmtindex.b file that contains information on which legs occupy each 1 by 1 degree bin and reports all the pairs of legs
       that may overlap. Each pair is only reported once, even if the two legs involved are found in other bins also.

       -L     Only report pairs where at least one of the legs are present in the legfile.

       -R     The region of interest.  [Default is world]

BEWARE
       The -L option is useful when one wants to check out a handful of new cruises. Obviously we only need to compute COEs  for  the  pairs  that
       involve one or two of the new cruises, since all the other combinations have already been done.

SEE ALSO
       GMT(1), x_system(1)

REFERENCES
       Wessel, P. XOVER: A Cross-over Error Detector for Track Data, Computers & Geosciences, 15, 333-346.

GMT 4.5.7							    15 Jul 2011 						     X_SETUP(1gmt)