Hi Michel, try ls[] = Rotate { {0., 1., 0.}, {0.,0.,0.}, 1.6} { Duplicata{ Line{100};} }; instead of ls[] = Rotate { {0., 1., 0.}, {0.,0.,0.}, 1.6} { Duplicata{ Spline{100};} }; Best regards, Mikhail -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.geuz.org/pipermail/gmsh/attachments/20121115/359df61b/attachment.html>