[Paraview] Reader Problem

[Brian Dotson]

Berk,
 
I use the following code to attach the arrays to the mesh.
 
if(first == 0) {
   output->GetCellData()->SetScalars(cell_data_array[j]);
} else {
   output->GetCellData()->AddArray(cell_data_array[j]);
}

where output is a vtkUnstructuredGrid, and cell_data_array is an array
of pointers to vtkFloatArrays.
 
I am not using a debugger, but I will run in valgrind and see what I
come up with.
 
Thanks for the help.
 
Brian Dotson

>>> "Berk Geveci" <berk.geveci at gmail.com> 11/10/2005 3:28 PM >>>

How are you associating the data with the vtk dataset? Do you read an
array and hand it to a vtk array? Also, can you run in a debugger and
get a track trace? If you are running on Linux, valgrind would be even
better.

-Berk

On 11/10/05, Brian Dotson <Brian.Dotson at netl.doe.gov> wrote:Hi all,
 
I wrote a custom reader that brings our simulation results into
ParaView.  
 
The data is an unstructured grid with multiple timesteps.  The cells
are either hexahedron or wedges.  The data I attach to the mesh is
mostly scalar with a few vectors.
 
With most of the simulation results we look at the reader looks fine,
but some of the data sets cause the following error.
 
free(): invalid pointer 0xc2f7f70!
 
This error happens after my code executes and I have returned the
unstructured grid over to ParaView.
 
I have done the following to debug the problem:
 
1. I checked the number of arrays that I am attaching to the mesh and
the NumberOfCellFields variable, these match.
 
2. I checked the MaxId of all the arrays.  These match the cell count.
 
3. When I turn all the cell arrays off, I don't get the errors, and the
mesh loads.
 
Does anyone have any ideas on what the problem could be?
 
Thanks,
 
Brian Dotson
National Energy Technology Laboratory
Department of Energy

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