[Paraview] Probing a solution position over time

[Berk Geveci]

Is your grid fixed or does it move with time? More specifically, are
there points that are attached to the interface? Also, is there a
computational domain where the interface stays stationary?

On 1/18/06, Renato N. Elias <rnelias at nacad.ufrj.br> wrote:
>
> Hmmm... Ok
>
> - A point over time will produce a 2D plot with the solution evolution over
> time (I did it).
>
> - A line over time should produce a 3D plot with the solution distribution X
> line distance X time (and PV can't render a 3D plot yet, ok).
>
> Here is the my problem: With a punctual probing PV will give me the value
> animation at that specific point in the space. I was thinking about
> specifying a scalar value and get the position variation (coordinates over Z
> axis) of this scalar value over time.
>
> Let me try to make me more clear. I'm doing a free surface simulation and I
> would like to track the interface between 2 fluids. The interface is a
> scalar value defined by 0.5. Thus, I need "to glue" a point at the interface
> (defined by the value 0.5) and see this point position oscillating over time
> OR put a line (as it was a scale) in my model and see the value position
> over the time
>
>
> -----Mensagem original-----
> De: Berk Geveci [mailto:berk.geveci at gmail.com]
> Enviada em: quarta-feira, 18 de janeiro de 2006 12:26
> Para: Renato N. Elias
> Cc: paraview at paraview.org
> Assunto: Re: [Paraview] Probing a solution position over time
>
> I don't think probing with a line over time works. This is the case because
> the built-in plot is 1D and cannot do carpet plots. If you animate that, it
> will generate the plot for the current time only. I think you can only probe
> with a point over time.
>
> On 1/18/06, Renato N. Elias <rnelias at nacad.ufrj.br> wrote:
> >
> > Hi Berk,
> >
> > I've already tried this but I was not able to understand what PV
> > returned me as CVS file. I did the following steps:
> >
> > 1. probe;
> > 2. put the line as probe object at the desired position to track the
> > solution fluctuation; 3. turned on the XY plot (100 resolution
> > points); 4. Selected the desired variable; 5. Played animation (PV
> > updated the XY plot correctly); 6. Exported the CVS file.
> >
> > My problem was that with 381 time steps Paraview produced only 101
> > probing points and a sequence of zeroes (see below). I was expecting
> > 100
> > (resolution) x 381 (time step) points. What's wrong, me or Paraview
> > ;-)
> >
> > CVS file:
> > -----------------------------------------------------
> > scalar,0.999169,0.796975,0.664442,0.301977,0.0303496,0.0670275,0.12122
> > 4,0.11
> > 5764,0.107367,0.109633,0.111905,0.111316,0.109866,0.11061,0.110975,0.1
> > 12038,
> > 0.111914,0.113595,0.11368,0.116214,0.116025,0.118887,0.117329,0.122099
> > ,0.121
> > 183,0.124607,0.121372,0.125367,0.126541,0.124592,0.126016,0.125052,0.1
> > 19828,
> > 0.12701,0.1202,0.126363,0.124791,0.124554,0.120287,0.122152,0.118757,0
> > .11998
> >
> 2,0.119189,0.120276,0.121142,0.121215,0.120831,0.120417,0.118901,0.117745,0.
> > 115605,0.112607,0.109625,0.106367,0.103832,0.103236,0.102936,0.102931,
> > 0.1011
> > 31,0.102156,0.100699,0.0988598,0.0961065,0.0928396,0.0898587,0.0875348
> > ,0.085
> > 9372,0.0847991,0.0842267,0.0847019,0.0856358,0.0874848,0.088467,0.0866
> > 29,0.0
> > 82856,0.0752954,0.0684321,0.0622399,0.0584943,0.0565929,0.0558061,0.05
> > 55034,
> > 0.05554,0.0555439,0.0556105,0.0555859,0.0555413,0.0553122,0.0550449,0.
> > 054968
> > 1,0.0545769,0.0546121,0.0536979,0.053699,0.0519272,0.0519754,0.049528,
> > 0.0498
> > 746,0.0472949,0.0477846,0.0450583
> > X or
> > T,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
> > 0,0,0,
> > 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
> > 0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
> > -----------------------------------------------------
> >
> > Regards
> >
> > Renato N. Elias
> > ===============================================
> > PhD student - http://www.nacad.ufrj.br/~rnelias High Performance
> > Computing Center Federal University of Rio de Janeiro Rio de Janeiro,
> > Brazil
> > +55(21) 2562-8080
> >
> > -----Mensagem original-----
> > De: Berk Geveci [mailto:berk.geveci at gmail.com] Enviada em:
> > quarta-feira, 18 de janeiro de 2006 12:05
> > Para: Renato N. Elias
> > Cc: paraview at paraview.org
> > Assunto: Re: [Paraview] Probing a solution position over time
> >
> > Actually, it is possible :-) Here is how you do it:
> >
> > probe
> > turn on xy plot
> > setup an animation in time (this happens automatically with some
> > readers) play you can also export the curve with export cvs
> >
> > On 1/18/06, Renato N. Elias <rnelias at nacad.ufrj.br> wrote:
> > >
> > > Hello all,
> > >
> > > I think it's not possible to do what I want with Paraview yet, but
> > > even so, here goes my question:
> > >
> > > How could I probe a solution position over time with Paraview? I
> > > mean, I would like to anchor a point in a specific solution value
> > > and extract the position fluctuation over time.
> > >
> > > Thanks for any help...
> > >
> > > Renato N. Elias
> > > ===============================================
> > > PhD student - http://www.nacad.ufrj.br/~rnelias High Performance
> > > Computing Center Federal University of Rio de Janeiro Rio de
> > > Janeiro, Brazil
> > > +55(21) 2562-8080
> > >
> > >
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