|If two legs are specified, the cross-overs they have in common are returned. If one leg is specified, all the external cross-overs involving this leg are returned, OR only its internal cross-overs if -I is selected. If no legs are given, all the external (or internal with -I) cross-overs are returned. This program is useful if one wants to look at, say, gravity COEs versus time from port for a particular leg, etc.|
This is a string of any combination of the following:
l means list both legnames.
t means list time.
x means list longitude.
y means list latitude.
g means list gravity COEs.
m means list magnetics COEs.
b means list bathymetry COEs.
G means list average gravity at cross-over.
M means list average magnetic anomaly at cross-over.
B means list average bathymetry at cross-over.
h means list heading of ship at cross-over.
The components are written out in the order they appear in dataflags. The default output is -txygmbGMBhl. When internal COEs are desired, the time reported is the elapsed time since the ship first occupied the cross-over point. For external COEs the time means time from the start of the year in seconds.
|-R||Only return cross-overs inside the specified region west, east, south, and north. [Default is world].|
|-X||Indicate alternate xx_base.b file.|
|-H||Issue one header record on output.|
|-I||Report on internal COEs [Default is external COEs].|
|-C||Apply cross-over correction to the data (i.e., reports the cross-over value after the best-fitting corrections have been applied to both legs). If no corrfile is given, the default correction file is assumed.|
|-Z||Ignore those legs that appear in the ignorefile.|
|-V||Selects verbose mode, which will send progress reports to stderr [Default runs "silently"].|
Wessel, P. XOVER: A Cross-over Error Detector for Track Data, Computers & Geosciences, 15, 333-346.
|GMT 4.5.14||X_LIST (1)||1 Nov 2015|