|rotX||Name of a file with a plate motion model. Separate several files with desired operator (+ or -). The very first file may also have a leading minus to imply a transpose. If any of the specified rotation models cannot be opened as a file, we will try to decode the file name as lon/lat/tstart[/tstop]/angle for a single rotation given on the command line. The tstop argument is required for stage poles only. For a single finite rotation without any time information, give lon/lat/angle only.|
-C Write out a column header record identifying the various columns [Default is no header record]. Append a to indicate opening angles and t to indicate opening rates [Default]. -D Report longitudes use the -180/+180 range [Default is 0/360]. -E Scale opening angles by fact on output. Requires stage pole output (see -F). -F Specify both the input and output format for rotations. The in and out flags must be either f or s for finite or stage rotations, respectively. Note that both must be specified if -F is set [Default is -Fff (both input and output are finite rotations)]. -N Place all output poles in the northern hemisphere [Default reports positive rotation angles]. -S Place all output poles in the southern hemisphere [Default reports positive rotation angles]. -T Transpose the final result, i.e., change the sign of the rotation angles. -V Selects verbose mode, which will send progress reports to stderr [Default runs "silently"]. Report statistics of extracted rotations.
To convert the finite rotations in the file model_finite.APM to stage poles, run
rotconverter model_finite.APM -Ffs > model_stages.APM
To obtain Nazca motion relative to Pacific hotspots by adding the motion of Nazca relative to a fixed Pacific to the Pacific-Hotspot reference model DC85_stages.d, and report the result as finite reconstruction poles in the northern hemisphere, try
rotconverter DC85_stages.APM + Pac_Naz_stages.RPM -N -Fsf > Naz_HS_finite.APM
To add the final rotations ROT(150.1, 70.5, -20.3) and ROT (145.0, 40.0, 11.4), try
rotconverter 150.1/70.5/-20.3 + 145/40/11.4
which prints out 157.32, -80.44, 11.97.
To make stage rotations suitable for generating flowlines (fracture zones) from a model of relative plate motions PL1-PL2.RPM, assuming symmetric spreading,, try
rotconverter PL1-PL2.RPM -E -Ffs > PL1-PL2_half.RPM
rotconverter - PL1-PL2.RPM -E -Ffs > PL2-PL1_half.RPM
|GMT 4.5.14||ROTCONVERTER (1)||1 Nov 2015|