OCTAVE hodoplot.m - Plot hodogram for down-hole or reference phone (signals in single file)
hodoplot prompts for:
BSEGY file name
(*.seg) (shell terminal input)
pop up message number of traces, tmax, sample interval
Choose Down-hole (chnls 1,2,3) or Reference Phone (chnls
4,5,6) (GUI Click Box)
Choose component for X-axis of plot (GUI Click Box)
Choose component for Y-axis of plot (GUI Click Box)
Choose scale factor for plot, default scales by maximum
value (GUI entry Box)
LOOP
Choose Tmin and Tmax (GUI entry box)
Choose Continue or Done (GUI click box) if continue loop
back and do another segment
Each loop back, Tmin set to last Tmax, plots a time mark on
the plot of motion
Basic Seismic Utilities (BSU) program run in Octave or Matlab. Within an octave session, type hodoplot and then on prompt, enter the bsegy format file name (example: 1001.seg). Then answer prompts as shown above. One moves through time, tracking the motion at either the down-hole or reference phone. Typical use is to plot Transverse on X-axis and Radial on Y-axis to sort out polarization of an S-wave source. All components to be plotted should be in a single file. Use program hodo2plot.m if components in different files (typical use there would be for surface rather than down-hole data).
Figure 1 time domain plot of motion.
segyinfo.m
bsegin.m
OCTAVE: segyinfo.m(7) bsegin.m(7) hodo2plot.m(7)
No known bugs.
Copyright © 2017 by Paul Michaels
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
P. Michaels, PE. <pm@cgiss.boisestate.edu>