[vtkusers] Regions of connected cells

[azmagillian87]

Thanks again for replying !

my obj file looks like three disconnected parts with many cells each it's
not complicate
and i use the below code just like the example with the difference i have
one source, the obj file

	vtkSmartPointer<vtkAppendPolyData> appendFilter = 
		vtkSmartPointer<vtkAppendPolyData>::New();
	appendFilter->AddInputConnection(reader->GetOutputPort());
 
	appendFilter->Update();

	vtkSmartPointer<vtkPolyDataConnectivityFilter> connectivityFilter = 
	vtkSmartPointer<vtkPolyDataConnectivityFilter>::New();
	connectivityFilter->SetInputConnection(appendFilter->GetOutputPort());
	connectivityFilter->SetExtractionModeToAllRegions(); 
	connectivityFilter->ColorRegionsOn();
	connectivityFilter->SetColorRegions(1);
	connectivityFilter->Update();

	vtkSmartPointer<vtkPolyDataMapper> extractedMapper = 
	vtkSmartPointer<vtkPolyDataMapper>::New();
	extractedMapper->SetInputConnection(connectivityFilter->GetOutputPort());

mapper->SetScalarRange(connectivityFilter->GetOutput()->GetPointData()->GetArray("RegionId")->GetRange());
	extractedMapper->Update()






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