gptarget to extract dispersion curve from a file.target

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jkh803
Posts: 4
Joined: Thu Jul 05, 2012 10:50 am

gptarget to extract dispersion curve from a file.target

Post by jkh803 »

When I used the command line to run the codes as following:

Code: Select all

 gptarget E -disp 0 Lep_ring01_3C.target 

Code: Select all

 gptarget E -disp 0 Lep_ring01_3C_dinver.target 
to extract the dispersion curve of fundamental Rayleigh from the below two files,
a message "gptarget: curve index out of bounds (-1)" is shown.
What's the problem? And I use the Geopsy.org packages, release 2.4.4, win32.
Waiting for your response. Thank you very much!
Attachments
Lep_ring01_3C.target
a result file obtained through SPAC processing
(15.98 KiB) Downloaded 411 times
Lep_ring01_3C_dinver.target
Lep_ring01_3C.target through post processing by spac2disp.exe
(35.61 KiB) Downloaded 399 times

admin
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Re: gptarget to extract dispersion curve from a file.target

Post by admin »

You target files do not contain any dispersion curve. Open them inside dinver to check.
They contains only SPAC curves. Currently gptarget has no option to extract autocorrelation curves. As stated in the help message, this can be implemented upon request. I'll add this task to my schedule.

jkh803
Posts: 4
Joined: Thu Jul 05, 2012 10:50 am

Re: gptarget to extract dispersion curve from a file.target

Post by jkh803 »

Many Thanks,Admin. I have noticed that. I had made a mistake that I thought using gptarget can obtain a dispersion curve from the autocorrelation curves by some kind of calculation. Is there any plugin to do this in your progarm? Thanks!

admin
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Posts: 488
Joined: Mon Aug 13, 2007 11:48 am
Location: ISTerre
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Re: gptarget to extract dispersion curve from a file.target

Post by admin »

spac2disp is the dedicated tool for that. More information about the dispersion curve retrieval from autocorrelation curves can be found in Wathelet et al. 2005.

jkh803
Posts: 4
Joined: Thu Jul 05, 2012 10:50 am

Re: gptarget to extract dispersion curve from a file.target

Post by jkh803 »

Thank you very much!

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