Hi everyone, I have created my vtkUnstructuredGrid dataset, and I can extract cells from my dataset by vtkAreaPicker and vtkExtractGeometry. How can I get the id of the extracted cells? Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20071204/d554fbc7/attachment.htm>