Hi, i write a file cartilage.vtk with this fragment code: vtkPolyDataWriter*writer=vtkPolyDataWriter::New(); writer->setInput(stripper->GetOutput()); writer->SetFileName("cartilage.vtk"); writer->SetFileTypeToBinary(); writer->Write(); but the file is not in my hard disk!Canyou help me? Thanks a lot Massimiliano La Paglia