[vtkusers] VRML to vtkPolyData

[Tim Hutton]

Donald,

The following works if there is a single object in the VRML scene that you 
are importing:

vtkDataSet *pDataset;
vtkVRMLImporter *vrml_importer = vtkVRMLImporter::New();
vrml_importer->SetFileName(surface_name);
vrml_importer->Update(); // because we are about to bypass the pipeline
vtkActorCollection *actors = vrml_importer->GetRenderer()->GetActors();
if(actors && actors->GetNumberOfItems()>0) {
   actors->InitTraversal();
   pDataset = actors->GetNextActor()->GetMapper()->GetInput();
}

and you can use vtkGeometryFilter to convert the vtkDataSet to a 
vtkPolyData (if you need to).

Hope this hack helps!

tim.


At 10:55 11/04/2004 -0700, Hamp Donald wrote:
>Hi
>      I am able to read a VRML file and display it.
>Please find the attached file. Can somebody help me
>how to hold the data in vtkPolyData format or writing
>the data in vtk format in a file.
>
>Respond Please.
>
>Best Regards
>Donald
>
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