Hi Marcelo, the error message indicates you need a component called CGAL to generate the mesh. CGAL has been replaced recently. This has been a popular topic this month on this list, take a look at the November archive:
http://fenicsproject.org/pipermail/fenics-support/2014-November/thread.html Mike On Fri, Nov 7, 2014 at 1:52 PM, Marcelo Vanti <[email protected]> wrote: > Hello, > I found the folowing error using UnityCircle in Fenics: > > DOLFIN encountered an error. If you are not able to resolve this issue*** > using > the information listed below, you can ask for help at****** > [email protected]****** Remember to include the error message > listed > below and, if possible,*** include a *minimal* running example to > reproduce the > error.****** > ------------------------------------------------------------ > -------------*** > Error: Unable to generate ellipse mesh.*** Reason: Generation of ellipse > meshes requires DOLFIN to be configured with CGAL.*** Where: This error > was > encountered inside EllipseMesh.cpp.*** Process: 0*** *** DOLFIN version: > 1.3.0*** Git changeset: unknown*** > > so I followed the advice given on this list and reinstalled Fenics with > sudo add-apt-repository ppa: FEniCS-packages / FEniCS > sudo apt-get update > sudo apt-get install FEniCS > sudo apt-get dist-upgrade > > Now I am finding the following error: > mesh=UnitCircleMesh(n) > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > NameError: name 'UnitCircleMesh' is not defined > > any help please?(my system is Ubuntu 14.04 over virtualbox). > > Marcelo Vanti > > > -- > Diga-me com o que programas e eu te direi quem és > > _______________________________________________ > fenics-support mailing list > [email protected] > http://fenicsproject.org/mailman/listinfo/fenics-support >
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