Dear all,<br><br>I begin by thanking you for all the work on Gmsh, which is very impressive.<br><br>I generate a 3d mesh with the attached file .geo. I can load it with a Finite Element solver named FreeFem++, but do not succeed to define periodic finite elements space on my weird cube: I have the following error message<br>
<br>"the both number of face is not the same "<br><br>How can I fix this, and impose the same elements on the symmetric sides of the cube ?<br><br>I thank you very much in advance for all piece of advise you could give me,<br>
<br>Best regards,<br><br>Alex<br><br><br clear="all"><br>-- <br><a href="http://www.ann.jussieu.fr/~blasselle/">http://www.ann.jussieu.fr/~blasselle/</a><br>