Great, works now! Thank you. Sorry that it was actually more gmsh than FD issue... Tomasz ________________________________________ From: firedrake-bounces@imperial.ac.uk <firedrake-bounces@imperial.ac.uk> on behalf of Lawrence Mitchell <lawrence.mitchell@imperial.ac.uk> Sent: 17 February 2016 16:19 To: firedrake@imperial.ac.uk Subject: Re: [firedrake] dimension with external mesh On 17/02/16 16:06, Tomasz Salwa [RPG] wrote:
Same file with your added line. I use: gmsh -2 mesh.geo
Ah, OK. If you provide a marker for one of the external boundaries of your mesh, you need to do so for all of them. You currently have: Physical Line(3) = {1}; If you also set physical lines for the geometric lines 2 through 4 in a similar manner, then things should work. Or, if you don't need to apply boundary conditions to any of the walls individually (and therefore don't need to distinguish between them), then you can delete that one Physical Line. Lawrence I