I'd think you could easily refactor the current class and then derive from it 
to implement your specialization, right?  If that works for you I'd happily 
accept a patch for it!

> On Feb 27, 2014, at 7:39 AM, "Erich Gaertig" <[email protected]> wrote:
> 
> I'm currently testing a workaround for the solution array fill you mentioned 
> below. Just as a general comment, from my point of view it would be great to 
> have a convenience method that similar to VTKIOs write_equation_systems fills 
> the _vtk_grid - variable with mesh and solution data and makes this pointer 
> available instead of writing it out to a file. Maybe the developers could 
> think about adding this kind of functionality in one of the next versions of 
> libmesh. Thanks for all the helpful comments and hints regarding my initial 
> question..
> 
> 
> 
>> Am 27.02.2014 um 09:21 schrieb Antonio Cervone <[email protected]>:
>> 
>> this is working for me
>> 
>> https://gist.github.com/capitalaslash/9246262
>> 
>> after making public a couple of functions and the _vtk_grid member.
>> in practice, what you need is a new method that sets up the vtk
>> structure, as it is done in the first part of
>> VTKIO::write_nodal_data().
>> in order to restore all the methods and members to their original
>> intended privateness, that section should be extracted from that
>> method and made public.
>> i can prepare a pull request for this if the developers do agree on it.
>> 
>> if you need to populate also solution arrays you need to look further
>> in the write_nodal_data() routine and modularize it in 3 parts: vtk
>> mesh creation, solution array fill and print out.
>> cheers,
> 

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