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.