[vtkusers] Subdomains in vtk

Andrew E Slaughter andrew.e.slaughter at gmail.com
Tue May 22 14:10:02 EDT 2012


Jochen,

I figured it out, and the SetNumberOfCompoents was not required. I was 
missing a header: vtkCellData.h.

Thanks again for the help, you saved me some time.

Peace,
Andrew


On 05/22/2012 02:08 PM, Jochen wrote:
>
> Andrew,
>
> I guess my code do have a bug, isn't it? Sorry for that. But I'm using 
> C# and ActiViz
> and do not have a working environment for C++/VTK.
> So the shown code was just out of my mind without testing.
> Accidently I missed a line ( see bold line in the code segement below).
>
> ...
>    vtkSmartPointer<vtkUnstructuredGrid> grid = 
> vtkSmartPointer<vtkUnstructuredGrid>::New();
>    ...
>
>    vtkSmartPointer<vtkIdTypeArray> blockIds = 
> vtkSmartPointer<vtkIdTypeArray>::New();
>    /* you can set another name, but then you must call
>       myVtkExodusIIWriter->SetBlockIdArrayName("yourElementBlockIdsName")
>       in your IO-method. */
>
> *blockIds->SetNumberOfComponents(1);*          // <------------- 
> sorry, I forgot this line
>    blockIds->SetName("ElementBlockIds");
>
>    for (vtkIdType i = 0; i < grid->GetNumberOfCells(); i++) {
>       blockIds->InsertNextValue(blockId[i]); // blockId is a c++ 
> integer array which contains your block ids
>    }
>    grid->GetCellData()->AddArray(blockIds);
>
>    ...
>
> To make things clear to me did it fail to compile or did it fail 
> during execution?
>
> with best regards
> Jochen
>
>
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