[Users] IDBrillData

Nisa Amir nisaamir at math.qau.edu.pk
Mon Feb 5 08:43:34 CST 2018


The visualization result generated by file gxx_x is attached below. What is
this indicating and what is along x-axis and y-axis. Kindly reply me as
soon as possible.

On Mon, Feb 5, 2018 at 7:32 PM, Roland Haas <rhaas at illinois.edu> wrote:

> Hello Nisa,
>
> > I didnt understand that what the output files are depicting.. please
> guide.
> I am not sure how to help you with this. As said before, the file
> ADMBase::gxx contains the x-x component of the three metric, ADMBase::gyy
> contains the y-y component of the three metric etc.
>
> Can you provide me with more details as to what it is you do not
> understand about the files or the data they contain? It would also be
> good to keep users at einsteintoolkit.org as a CC address so that persons
> other than I can help you.
>
> Yours,
> Roland
>
> >
> > On 26 Jan 2018 3:39 am, "Nisa Amir" <nisaamir at math.qau.edu.pk> wrote:
> >
> > > Okay. I will read it..
> > >
> > > On 26 Jan 2018 1:16 am, "Roland Haas" <roland.haas at physics.gatech.edu>
> > > wrote:
> > >
> > >> Hello Amir,
> > >>
> > >> > when we run the parameter file in thorn IDBrillData as it is,
> without
> > >> any
> > >> > change we get a number of XG files which are viewed by using xgraph.
> > >> What
> > >> > these visualization results depicts? Early response will be highly
> > >> > appreciated
> > >> You mean
> > >> arrangements/EinsteinInitialData/IDBrillData/par/brilldata.par ?
> > >>
> > >> The output produced is
> > >>
> > >> IOASCII::out1D_vars = "ADMBase::gxx ADMBase::gyy ADMBase::gzz
> > >> ADMBase::gxy ADMBase::gxz ADMBase::gyz idbrilldata::brillpsi"
> > >>
> > >> so basically the xx, yy, zz, xy, xz, yz components of the 3-metric as
> > >> well as a quantity called brillpsi which I would assume to be a
> > >> conformal factor set up by the initial data routine.
> > >>
> > >> To understand what they mean you would need to look up what the
> > >> parameter q_function = "gundlach" implies by reading the documention
> in
> > >> tex/documentation.tex (just run it through pdflatex). Eg section 2 in
> > >> there should give information.
> > >>
> > >> Yours,
> > >> Roland
> > >>
> > >> --
> > >> My email is as private as my paper mail. I therefore support
> encrypting
> > >> and signing email messages. Get my PGP key from http://pgp.mit.edu .
> > >>
> > >
>
>
>
> --
> My email is as private as my paper mail. I therefore support encrypting
> and signing email messages. Get my PGP key from http://pgp.mit.edu .
>
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