[CIG-SEISMO] Help with visualizing output in Google Earth

Nena Carina Espanola nena.carina at gmail.com
Wed Jun 2 19:45:27 PDT 2010


Hi Daniel,

Thank you so much for the help.

I have managed to finally remove the big X. I tried increasing the 
resolution of the global simulation to 192 and used the PNG scripts. But 
there seems to be a problem with the PNG files that were generated. When 
I closely inspected them, they're all just blank images. I actually 
didn't edit the scripts as I don't exactly know how. Any more tips would 
be greatly appreciated!

Thanks and regards,

Nena

On Thursday, 13 May, 2010 11:22 AM, daniel peter wrote:
> Hi Nena,
>
> not sure if somebody already replied to your message below which i 
> received from the CIG mailer. in case you are still trying to find out,
> first you have to check with the file path names that are used in your 
> "animation.kml", e.g. :
>     ...
> <href>OUTPUT_FILES/gmt_movie_000100.xyz.gif</href>
>     ...
>
> in this case, GoogleEarth would try to find the image files in the 
> subdirectory OUTPUT_FILES/ which you will have to provide.
> if that directory and those files don't exist, GoogleEarth can't find 
> them and will display a red "X" instead.
>
> that is, make sure that when you copy over the 'animation.kml' file to 
> another directory,
> you also have to copy over the OUTPUT_FILES/***.gif files. then 
> GoogleEarth should be able to find the files in the right spot and
> display them correctly.
>
> best wishes,
> daniel
>
> ps.
> 1. these google earth visualization are still in a very preliminary 
> stage. we tried it out here, but when having large numbers of *.gif 
> files, the animation becomes very slow.
>
> 2. the transparency is very rudimentary for the *.gif files created 
> with GMT/plot_gmt_movie_file.pl. better ways for transparencies are 
> shown with the GMT/plot_movie_GMT_ascii_PNG.pl scripts. those would 
> require to use "xcreate_movie_GMT_global" instead for converting the 
> moviedata** files.
>
> 3. the resolution of the global simulation (as set in your Par_file: 
> NEX_XI=94,..) is very coarse. that makes the image quality quite rough.
> in case you would only be interested in a smaller region around the 
> Philippines, you would try to run a regional simulation (NCHUNKS = 1)
> only (and model s362ani is a good choice to use, but it is not very 
> crucial which model you select for movies). you can read in the 
> USER_MANUAL/manual*.pdf how to change the Par_file accordingly. 
> however, you would also have to modify the
> rendering scripts, plot_gmt_movie_file.pl or 
> plot_movie_GMT_ascii_PNG.pl and google-earth-kml.pl.
> for those, there are no examples for regional animations yet given. 
> you would have to find out yourself.
>
>
>
> On May 6, 2010, at 10:25 PM, Nena Carina Espanola wrote:
>
>> Good day to all!
>>
>> I'm a system administrator for our cluster and have installed 
>> SPECFEM3D_GLOBE Version 5.0.1 for researchers to use. I want to make 
>> a simple simulation, visualize it in Google Earth, and demonstrate it 
>> to future users of our facility.
>>
>> What I'm trying to simulate is an earthquake that occurred last July 
>> 16, 1990 with epicenter in Northern Philippines. I chose this 
>> earthquake since this is one of the most destructive earthquakes in 
>> the history of the Philippines. I already have the CMTSOLUTION file, 
>> however, I'm not very sure how to set the Par_file as I know very 
>> little (almost nothing) about seismology. I do not know which model 
>> would be best to use for Google Earth animations. I've already tried 
>> a global run using s362ani (as this is the default model set in 
>> Par_file). I then followed the instructions found in 
>> UTILS/Visualization/GoogleEarth folder to create the animation.kml 
>> file. However, when I tried viewing it in Google Earth, it shows a 
>> huge red X on the other side of the earth and a thick line connecting 
>> the north and south poles.
>>
>> I'm attaching the Par_file, CMTSOLUTION, and the bash script I use 
>> for your reference.
>>
>> Thanks in advance,
>>
>> Nena :-)
>>
>> Here's our Cluster:
>> http://buhawi.pscigrid.gov.ph/ganglia/
>>
>>
>>
>>
>>
>>
>> <CMTSOLUTION.txt><Par_file.txt><go.txt>_______________________________________________ 
>>
>> CIG-SEISMO mailing list
>> CIG-SEISMO at geodynamics.org
>> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-seismo
>


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