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[Kent-Andre Mardal <question147820@xxxxxxxxxxxxxxxxxxxxx>]

Question #147820 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/147820

Kent-Andre Mardal proposed the following answer:
Could you send be the file ?

Kent

On 4 March 2011 21:30, JJ Jiang
<question147820@xxxxxxxxxxxxxxxxxxxxx>wrote:

> Question #147820 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/147820
>
>     Status: Answered => Open
>
> JJ Jiang is still having a problem:
> Hi Johan and Kevin,
>    Thanks for the notes. I think you can dump simulated temperature or mass
> to raw files. That can be manipulated when the mesh data are also given
> either in a vtu format or in a raw format.
>    By the way, I used Paraview to see the simulated "temperature" scalar
> has been attached to a vtu. Surprisingly, I couldn't read it out by its
> name. I don't know why.
>    I guess Johan's suggestions will give users more flexibilities to handle
> the data.
>    Thanks again to both of you.
> Best regards,
> --JJ
>
> On 03/04/11, Johan Hake   wrote:
> > Your question #147820 on DOLFIN changed:
> > https://answers.launchpad.net/dolfin/+question/147820
> >
> > Johan Hake proposed the following answer:
> > Maybe Viper could provide a high level interface to read a vtu file into
> a
> > NumPy array, and a mesh into a coordinate and cell arrays?
> >
> > Then we eventually can use this to pass data to Viper for plotting in the
> C++
> > interface. This might fix the parallel ploting issue we have.
> >
> > It would also be cool to implement a helper function in the Python
> interface
> > of DOLFIN that uses the potential added functionality in Viper to
> generate a
> > Function, with or without a given mesh. A FunctionSpace could be
> automatically
> > generated based on the dimensions of the data (is this true?) If a mesh
> is not
> > given we generate it based on the stored mesh data from the file.
> >
> > Johan
> >
> >
> > On Friday March 4 2011 11:30:52 Kent-Andre Mardal wrote:
> > > Question #147820 on DOLFIN changed:
> > > https://answers.launchpad.net/dolfin/+question/147820
> > >
> > >     Status: Open => Answered
> > >
> > > Kent-Andre Mardal proposed the following answer:
> > > You should be able to use GetPointData().GetArray(). Have you looked at
> the
> > > name of the variable in the vtu file? It is in ASCII format.
> > >
> > > I attach something I did earlier.
> > >
> > > Kent
> > >
> > > On 4 March 2011 19:34, JJ Jiang
> > >
> > > <question147820@xxxxxxxxxxxxxxxxxxxxx>wrote:
> > > > New question #147820 on DOLFIN:
> > > > https://answers.launchpad.net/dolfin/+question/147820
> > > >
> > > > Hi all,
> > > >
> > > >  I am running into a problem. I run the advection-diffusion demo. All
> the
> > > >
> > > > simulated mass transport quantities u were save to a vtk PVD file
> with an
> > > > unstructured mesh.
> > > >
> > > > My question is how to read out the u from the associated individual
> vtu
> > > > files. I thought  the u is attached to either PointData or CellData
> so
> > > > that I can read out the scalar u using one of the following:
> > > > grid->GetPointData()->GetArray('name');
> > > > or
> > > > grid->GetCellData()->GetArray('name');
> > > >
> > > > But my attempts have failed. Please provide your advice. Thanks so
> much
> > > > for your help!
> > > >
> > > > Best regards,
> > > > --JJ
> > > >
> > > >
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> >
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> --
> +++++++++++++++++++++++++++++++++++
> Jingfeng Jiang (JJ)
> University of Wisconsin
> Medical Physics Department
> 1530 Medical Sciences Center
> 1300 University Avenue
> Madison, WI 53706
> Phone: (608) 262-4197
> FAX: (608) 262-2413
> +++++++++++++++++++++++++++++++++++
>
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