Thank you Michael for your answer. That's what I was wondering... I'll do it using vtk file format then. Laurent. -- View this message in context: http://vtk.1045678.n5.nabble.com/Write-scalars-or-vectors-data-in-a-STL-file-tp4599243p4599739.html Sent from the VTK - Users mailing list archive at Nabble.com.