dolfin team mailing list archive

["Martin Sandve Alnæs" <martinal@xxxxxxxxx>]

On Wed, Dec 17, 2008 at 5:42 PM, Johan Hake <hake@xxxxxxxxx> wrote:
> On Wednesday 17 December 2008 16:34:16 Anders Logg wrote:
>> On Wed, Dec 17, 2008 at 01:58:35PM +0100, Martin Sandve Alnæs wrote:
>> > Using latest hg versions of everything, I'm trying to plot a Function
>> > from C++ based on a SFC-generated function space and I get:
>> >
>> > Failed to read DOLFIN mesh or function XML file for plotting:
>> >   *** Error: Unable to find dof map in library:
>> > "FiniteElement('Lagrange', 'triangle', 1)".
>> > Unable to plot (DOLFIN Python module or Viper plotter not available).
>> >
>> > Can I suggest using Function::interpolate to make a .vtu file to plot
>> > instead of relying on a form compiler specific precompiled element
>> > library?
>> >
>> > Martin
>>
>> Sounds like a good idea. We now generate Python script that loads the
>> Function (or Mesh) from file and then calls Viper from Python.
>>
>> Does Viper support direct plotting of .vtu files? In that case, we
>> would not need to call Python from C++. We could generate a .vtu file
>> and then call Viper with that file (using system()).
>>
>> I don't have time to fix this now, so either find someone to fix it or
>> put it on the TODO list.

What is in use, the text file or bugzilla?

> We could also plot a cpp.Function instead of a dolfin.Function. That fix would
> not be so extensive. I had a brief look at it but couldn't find out where
>
>   Function(filename)
>
> was called.
>
> Johan

I also want to write a Function to file in C++.
What are the requirements on the FunctionSpace
to be able to do that?

Martin