A forum for SAC users to exchange ideas and ask questions about SAC usage, installation, portability, etc.
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Active Message Threads for January 2009
Marcelo Bianchi
Hi guys,
Does someone noticed that SAC can read it's own written CSS files ?
try for your self:
fg seismograph
writecss lala
readcss lala.wfdisc
I searched and find that it says inm the wfdisc file that the .w file
is IEEE big endian (t4 css datatype) and actually it writes IEEEE
little endian files (f4 css datatye). Does anyone has a patch to fix
that ?
regards,
marcelob
--
:: "This is all about life !" ::
:: Find me @ http://www.foo4fun.net/ ::
No replies
Onur Tan
Hi all,
I need to get time shift of cross-correlation function of two signals.
is there a way to learn the time shift value ?
best regards
Onur
No replies
b shirisha
Dear All,
please can anybody tell me the use of decimation .
thanking you
sirisha
No replies
Dear All
is there any sac command to convert macro file to ps file. The macro
file contains intial event and final event in the same graphical window. so
by converting it to ps file format we got only intial event, the commands we
used for ps file conversion are
*SAC> bg sgf*
*SAC> p2*
*SAC>sgftops f001.sgf <file name with .ps extension>*
**
the script of macro file is as follows
*xlable "time @(s@)" size tiny
xdiv power off
fileid off
beginframe
color on i on l black blue
gtext font 1 si…
[more]
No replies
Steve Gao
Hi SAC experts,
We have just obtained an X86-64 Redhat Linux server and I would like to install SAC on it. SAC itself works fine on the 64 bit machine but the lib/sacio.a file that came with the package cannot be compiled with FORTRAN codes.
Please help.
Thanks.
Steve
----------------------------
Here is the error message when "make" was typed:
g77 -g readsac.f -o readsac.exe \
/home/sgao/subs/wsac1gao.f \
/home/sgao/soft/sac/lib/sacio.a
/usr/bin/ld: warning: i386 architecture o…
[more]
Replies
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Re: sacio.a for 64 bit Linux - Brian Savage - 2009-01-15 00:33:26
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Re: sacio.a for 64 bit Linux - Sebastian Heimann - 2009-01-15 20:26:09
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Maria Silveira
Dear All
Does someone know a sac command (or several in a script) to concatenate
several sac files?
Thanks
Graça Silveira
--
Graça Silveira
Professora Adjunta
Área Científica de Física
Instituto Superior de Engenharia de Lisboa
Rua Conselheiro Emídio Navarro
1959-007 Lisboa
tel: 218317135
Centro de Geofísica da Universidade de Lisboa
Edifício C8
Campo Grande
1749-016 LISBOA
email: mdsilveira@fc.ul.pt
tel: 217500812
Replies
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Re: How to concatenate several sac files - Mei Xue - 2009-01-14 06:35:37
gilberto saccorotti
Dear all:
I'm repetitively trying to compile SAC on my 64-bit HP machine
(mandriva 2007 linux arch) using:
% ./configure --x-libraries=/usr/X11R6/lib
I also tried to force 32-bit detection:
% env CFLAGS="-m32"
but I always get the same weirdness:
*****************************************************************
configure: error: C compiler cannot create executables
*****************************************************************
due to some 'imultilib' unrecognised option, as depic…
[more]
No replies
Sheila Peacock
Dear all,
These were suggested by my colleague. I can take no credit for them.
Some of the SAC commands have been abbreviated.
Regards,
Sheila Peacock.
Sheila,
if they want to know the frequency at which the maximum amplitude occurs, then
r $1
rtr
taper
fft
* add any smoothing in here
keepam
markptp
lh t1
does the trick.
The maximum value of an amplitude spectrum can be simply obtained by
fft
keepam
lh depmax
Do they want to know the frequency when this occurs?
the value of the t…
[more]
No replies
weitao
Dear All
Is there any sac command to find the value of tn marker ? I mean if
t1=100. can I find out the Y-value at that time?
thanks all.
weitao
Replies
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Re: how to find the value of tn marker ? - Pablo Palacios - 2009-01-12 17:23:24
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Re: how to find the value of tn marker ? - George Helffrich - 2009-01-13 00:15:57
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