[SAC-HELP] Re: sac-help Digest, Vol 33, Issue 4
Brian Savage
savage at uri.edu
Mon Mar 10 06:44:51 PDT 2008
Onur Tan and Tuna Eken
This is an issue with SAC version 101.0. The blackboard variable
section
of the code base has a bug regarding the concatenation of blackboard
variables.
Please upgrade to 101.1 to resolve this issue.
Cheers
Brian Savage
On Mar 8, 2008, at 5:03 PM , Tuna Eken wrote:
>
>
>
>
> To message 3:
>
> Hi Onur,
>
> when I tried the same commands with the same parameters onto my
> example sac
> file
> it did worked out ... It actually gave the same error messae when i
> used
> different time values (whis is not included by the data) ...
>
> So problem may be caused by applying wrong values for your data.
> have you ever
> checked starting end ending points of the data ?
>
> regards
>
> tuna eken
>
>
> Message: 3
> Date: Sat, 8 Mar 2008 13:29:51 +0200
> From: "Onur Tan" <Onur.Tan at mam.gov.tr>
> Subject: [SAC-HELP] Blackboard Variables and CUT
> To: <sac-help at iris.washington.edu>
> Message-ID:
> <110C3E0C4E9ADB4C882229C2A7A1540A052C2511 at POSTA2K3.mam.gov.tr>
> Content-Type: text/plain; charset="us-ascii"
>
>
> Hi,
>
> When I use a blackboard variable as the first parameter of the cut
> command in SAC new version (101.0),
> it gives error.
>
> I tried this (echo on):
> --------------------
> SAC> setbb a 600
> setbb a 600
> SAC> setbb b 700
> setbb b 700
> SAC> cut %a %b
> cut %a %b
> ==> cut 600
> SAC> r
> r
> WARNING: Start cut greater than stop cut for file 08010_0707_CEV.1
> ERROR 1301: No data files read in.
> SAC>
> -----------------------------
> the cut command do not understand the second variable.
>
>
> This does also not work:
> ----
> SAC> cut %a 700
> cut %a 700
> ==> cut 600
> SAC> r
> r
> WARNING: Start cut greater than stop cut for file 08010_0707_CEV.1
> ERROR 1301: No data files read in.
> ----
>
>
> But this works
> ----
> SAC> cut 500 %b
> cut 500 %b
> ==> cut 500 700
> SAC> r
> r
> SAC> p
> p
> ----
>
>
> Do you have any idea?
>
> best regards
> Onur Tan
>
>
>
>
> Citerar sac-help-request at iris.washington.edu:
>
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>> Today's Topics:
>>
>> 1. Two SAC queries - (i) conversion of SAC files to PITSA-ASCII
>> and (ii) SAC library issues for multi-channel cross-correlation
>> (Fiona Darbyshire)
>> 2. About fft routine in SAC (wwxu)
>> 3. Blackboard Variables and CUT (Onur Tan)
>>
>>
>> ---------------------------------------------------------------------
>> -
>>
>> Message: 1
>> Date: Fri, 7 Mar 2008 18:13:09 -0500
>> From: "Fiona Darbyshire" <f.darbyshire at gmail.com>
>> Subject: [SAC-HELP] Two SAC queries - (i) conversion of SAC files to
>> PITSA-ASCII and (ii) SAC library issues for multi-channel
>> cross-correlation
>> To: sac-help at iris.washington.edu
>> Message-ID:
>> <256ff3740803071513m5ef1bc36nbfdb2c6317b6d87c at mail.gmail.com>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hello,
>>
>> I have 2 SAC-related queries that are causing me problems on a
>> couple of
>> fairly urgent projects currently:
>>
>> i) I inherited a Matlab program for surface wave analysis. The
>> seismogram
>> files that it reads are in PITSA ASCII format. Is there any existing
>> software to convert standard SAC to PITSA ASCII? Or will I have to
>> convert
>> SAC binary to alpha, and try to reformat the resulting ascii files?
>>
>> ii) Another inheritance: this time I have been given the source code
>> (fortran) for John VanDecar's "mccc" multi-channel cross-correlation
>> program. The program contains a lot of SAC functions, such as
>> "rsach",
>> "getnhv", "rsac1", "getkhv", "getfhv", "setfhv", "setkhv",
>> "wsac0"... (and
>> probably a few others I haven't spotted yet). Along with the
>> Fortran codes I
>> was given a couple of SAC libraries of the type "libsac.a". The
>> problem is
>> that this set worked OK for a SUN system, but I am on Linux
>> (CentOS 5). With
>> the SAC library that I was given, and the SAC library I obtained when
>> downloading SAC executables for my current system, I was unable to
>> compile
>> the code. I have a really old SAC library (old enough that I can't
>> remember
>> even which version it comes from) and that one allowed mccc to
>> compile...
>> but not to run (segmentation fault). Can anyone advise me on using
>> SAC
>> libraries correctly and/or making changes to the fortran code that
>> will
>> allow me to run this program?
>>
>> I should add that I'm a rather poor programmer - just about
>> literate in
>> Fortran, okay in simple shell scripts, but not too great with any
>> other
>> programming languages! Any advice greatly appreciated.
>>
>> Thanks a lot,
>>
>> Fiona Darbyshire.
>> -------------- next part --------------
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>>
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>>
>> ------------------------------
>>
>> Message: 2
>> Date: Sat, 08 Mar 2008 02:59:07 GMT
>> From: "wwxu" <wwxu at mail.iggcas.ac.cn>
>> Subject: [SAC-HELP] About fft routine in SAC
>> To: sac-help at iris.washington.edu
>> Message-ID: <20080308025907.3888.eqmail at mail.iggcas.ac.cn>
>> Content-Type: text/plain; format=flowed; charset="gb2312"
>>
>> Hi ALL,
>>
>> In SAC, I generate a 5Hz sine wave and do fft transforming as
>> follows:
>> sac> funcgen sine 5 npts 1024 delta 0.01
>> sac> fft
>> sac> psp am loglin
>> and I find that the maximum absolute amplitude is greater than 4 near
>> frequency 5Hz, but in theory, it should be 0.5 because of amplitude
>> spectrum symmetry of real series, so could you tell me why?
>>
>> B.T.W., I also compute the amplitude spectrum using fft program I
>> wrote and
>> find that the result is not the same with SAC generated, I checked
>> the
>> program carefully and be sure that it's right and conform with the
>> theoretical result.
>>
>> thanks for your attention!
>>
>>
>> Your sincerely,
>> Xu W.
>>
>> ************************************************
>> Dr. WeiWei Xu
>> Institute of Geology and Geophysics
>> Chinese Academy of Sciences
>> P.O.Box 9825
>> Beijing 100029
>> China
>> Tel: 0086-10-62007354(Office)
>> Fax: 0086-10-62010846
>> ************************************************
>>
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Sat, 8 Mar 2008 13:29:51 +0200
>> From: "Onur Tan" <Onur.Tan at mam.gov.tr>
>> Subject: [SAC-HELP] Blackboard Variables and CUT
>> To: <sac-help at iris.washington.edu>
>> Message-ID:
>> <110C3E0C4E9ADB4C882229C2A7A1540A052C2511 at POSTA2K3.mam.gov.tr>
>> Content-Type: text/plain; charset="us-ascii"
>>
>>
>> Hi,
>>
>> When I use a blackboard variable as the first parameter of the cut
>> command in SAC new version (101.0),
>> it gives error.
>>
>> I tried this (echo on):
>> --------------------
>> SAC> setbb a 600
>> setbb a 600
>> SAC> setbb b 700
>> setbb b 700
>> SAC> cut %a %b
>> cut %a %b
>> ==> cut 600
>> SAC> r
>> r
>> WARNING: Start cut greater than stop cut for file 08010_0707_CEV.1
>> ERROR 1301: No data files read in.
>> SAC>
>> -----------------------------
>> the cut command do not understand the second variable.
>>
>>
>> This does also not work:
>> ----
>> SAC> cut %a 700
>> cut %a 700
>> ==> cut 600
>> SAC> r
>> r
>> WARNING: Start cut greater than stop cut for file 08010_0707_CEV.1
>> ERROR 1301: No data files read in.
>> ----
>>
>>
>> But this works
>> ----
>> SAC> cut 500 %b
>> cut 500 %b
>> ==> cut 500 700
>> SAC> r
>> r
>> SAC> p
>> p
>> ----
>>
>>
>> Do you have any idea?
>>
>> best regards
>> Onur Tan
>>
>>
>>
>>
>> ------------------------------
>>
>> _______________________________________________
>> sac-help mailing list
>> sac-help at iris.washington.edu
>> http://www.iris.washington.edu/mailman/listinfo/sac-help
>>
>>
>> End of sac-help Digest, Vol 33, Issue 4
>> ***************************************
>>
>
>
>
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