[vtk-developers] Variable output type

[Karthik Krishnan]

On Sat, May 29, 2010 at 1:10 AM, David Doria
<daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> wrote:

> I want to make a filter in which I can specify the output type.
>

You would provide the method :

  FillOutputPortInformation( int port, vtkInformation *info )
    {
    if (.... && port == 0)
     {
     info->Set(vtkDataObject::DATA_TYPE_NAME(),
"vtkMutableUndirectedGraph");
     }
    if (....&& port == 0)
     {
     info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkMutableDirectedGraph");
     }
    }
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