[aspect-devel] ASPECT Data to ASCII file - aspect-devel Digest, Vol 74, Issue 8

Wed Jan 17 01:33:28 PST 2018

Dear Wolfgang,
I would like to have an XYZ ascii file to statistically visualize numbers
associated with my results and, thus, to have a comprehensive view of them.

Thank you all for your suggestions!
All the best,
Eleonora

2018-01-16 21:00 GMT+01:00 <aspect-devel-request at geodynamics.org>:

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> Today's Topics:
>
>    1. Re: ASPECT Data to ASCII file (Wolfgang Bangerth)
>    2. Re: Earth radius in spherical shell models (Wolfgang Bangerth)
>    3. Re: ASPECT Data to ASCII file (Rene Gassmoeller)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 15 Jan 2018 17:18:53 -0700
> From: Wolfgang Bangerth <bangerth at colostate.edu>
> To: aspect-devel at geodynamics.org
> Subject: Re: [aspect-devel] ASPECT Data to ASCII file
> Message-ID: <088f79ed-95d4-81dd-7439-8d6eddd70650 at colostate.edu>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> On 01/15/2018 03:21 AM, Eleonora Ficini wrote:
> > I need to export ASPECT data in an XYZ ascii file.
> >
> > I read on the manual that this could be done writing “txt" in the
> “Output format” (Visualization subsection), but when I try to do this
> ASPECT send me an error ( specifically, the txt format is not available).
> > What could I do to have this kind of file?
>
> Eleonora -- there are several graphical output formats that output data in
> clear text and that could pretty easily be processed into xyz-type data. An
> example is the gnuplot format.
>
> There are other possibilities, but before trying to describe them, let me
> ask
> why you need this format? Outputting the *entire* solution in xyz format
> only
> makes sense if you want to visualize it (because it's *so* much data) --
> for
> which there are of course much better formats than just xyz. On the other
> hand, if you are really only interested in the solution at *some* points,
> then
> maybe you want to use the 'point value' postprocessor?
>
> Best
>   W.
>
> --
> ------------------------------------------------------------------------
> Wolfgang Bangerth          email:                 bangerth at colostate.edu
>                             www: http://www.math.colostate.edu/~bangerth/
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 15 Jan 2018 17:41:05 -0700
> From: Wolfgang Bangerth <bangerth at colostate.edu>
> To: aspect-devel at geodynamics.org
> Subject: Re: [aspect-devel] Earth radius in spherical shell models
> Message-ID: <a348b930-eefd-3d0d-abfe-3a6326a3a1ca at colostate.edu>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> On 01/14/2018 04:22 PM, Max Rudolph wrote:
> > I am wondering why the default outer radius of the Earth in ASPECT is
> set to
> > 6336 km (based on the default value in Geometry model/Spherical shell)?
> >
> > 6,336 km is the equatorial radius of curvature
> > 6,378 km is the equatorial radius
> > 6,371 km is the radius of a sphere with equal volume
> >
> > I know that these differ only at the 0.5% level and for most practical
> > purposes may not make any difference, but was wondering if there is a
> > justification for defaulting to one over the other?
>
> That number dates back to the very early days of ASPECT, and indeed step-32
> has this line:
>
>      const double R0      = 6371000.-2890000.;     /* m          */
>      const double R1      = 6371000.-  35000.;     /* m          */
>
> That would suggest that I used the radius of the sphere with equal volume
> minus the average depth of the crust. It seems like a coincidence that it's
> also the radius of curvature at the equator.
>
> I'll document this in the parameter description in a minute.
>
> Best
>   Wolfgang
>
> --
> ------------------------------------------------------------------------
> Wolfgang Bangerth          email:                 bangerth at colostate.edu
>                             www: http://www.math.colostate.edu/~bangerth/
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 16 Jan 2018 11:16:51 +0100
> From: Rene Gassmoeller <rene.gassmoeller at mailbox.org>
> To: aspect-devel <aspect-devel at geodynamics.org>
> Subject: Re: [aspect-devel] ASPECT Data to ASCII file
> Message-ID: <7f8e4bf6-1fa7-3b65-a091-516c6462a701 at mailbox.org>
> Content-Type: text/plain; charset=utf-8
>
> Just noticed that I did not reply to the mailing list yesterday, but
> only in person:
>
>
>
> Hi Eleonora,
>
> Could you post where you found this in the manual? It might be a
> mistake, as I do not think there is a 'txt' output format available.
> Here is the (currently unfortunately not documented, see
> https://github.com/geodynamics/aspect/issues/2055) list of output formats:
>
> "none|dx|ucd|gnuplot|povray|eps|gmv|tecplot|tecplot_binary|
> vtk|vtu|hdf5|svg|deal.II
> intermediate"
>
> vtu and hdf5 support parallel and compressed writing so they are most
> useful for large models, but you can choose any of the other (vtk and
> gnuplot are text files in specific formats). Though the easiest might be
> to use Paraview's "Save data" option, which can write the currently
> loaded data into a .csv file that can be read by editors, or most
> spreadsheet software (Calc, Excel, ...).
>
> Hope that helps.
>
> Cheers,
>
> Rene
>
>
>
> On 01/15/2018 11:21 AM, Eleonora Ficini wrote:
> > Dear all,
> > I need to export ASPECT data in an XYZ ascii file.
> >
> > I read on the manual that this could be done writing “txt" in the
> “Output format” (Visualization subsection), but when I try to do this
> ASPECT send me an error ( specifically, the txt format is not available).
> > What could I do to have this kind of file?
> >
> > Thank you in advance for you attention and help!
> >
> > All the best,
> > Eleonora Ficini
> >
> > _______________________________________________
> > Aspect-devel mailing list
> > Aspect-devel at geodynamics.org
> > http://lists.geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel
>
> --
> Rene Gassmoeller
> http://www.math.colostate.edu/~gassmoel/
>
>
>
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> ------------------------------
>
> End of Aspect-devel Digest, Vol 74, Issue 8
> *******************************************
>

-- 
Eleonora Ficini, PhD student
Department of Earth Sciences
Sapienza University of Rome
P.le A. Moro, 5 - 00185, Rome, Italy
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