seg2txt - BSU writes bsegy seismic traces to ASCII text file
seg2txt [ -h | infile | tmin | tmax | fstrc | lstrc | timelist ]
Basic Seismic Utilities (BSU) reads seismic traces from a bsegy file and writes output to an ASCII text file. The columns of output begin with the sample time (ONLY IF timelist=1), followed by the data values in E format. The original distribution sets the maximum number of traces at 200 for output (files can get large). If this is not large enough, change the mdim parameter in the source and recompile. Systems with large amounts of memory can make this value as big as memory will allow. For systems without large memory, you can always break the output into several files using the first and last trace parameters. NOTE: No header information is output other than the sample times (ONLY IF timelist=1). Header information can be extracted with bdump or bhed. Fortran 77.
Options
|
-h |
Online help giving details on command line arguments | ||
|
infile |
Input file name | ||
|
tmin |
Start time for the output samples. | ||
|
tmax |
End time for the output samples. | ||
|
fstrc |
First trace to extract from the input file and output to text. | ||
|
lstrc |
Last trace to extract from the input file and output to text. |
timelist
If timelist=1 insert a first column of sample times, timelist=0 only data output.
NOTE:
If invoked with no options, will prompt user for input
parameters.
EXAMPLE:
seg2txt wave.seg .02 .07 5 10 0
Traces 5 through 10 are output, samples limited from .02 seconds to .07 seconds. No first column of sample times inserted in output.
s2txtyyyy.txt
Name convention is s2txt plus the first 4 characters of the input file name.
standard output
produces a progress bar
s2txyyyy.lst
echo check of input parameters.
bhelp(1), bhed(1), bdump(1), traplt(1)
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>