Hello, >From a Line defined as: Line(1) = {p1,p2}; Transfinite Line{1} = 40; how can I create a physical groups that contains all points except the two boundary points ? Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.geuz.org/pipermail/gmsh/attachments/20121126/36bed84b/attachment.html>