dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Mon, May 05, 2008 at 03:26:04PM +0200, Ola Skavhaug wrote:
> Nuno David Lopes skrev den 05/05-2008 følgende:
> > Hi,
> > 
> > I'm a newbie --2 months--, user  trying to get in to Dolfin.
> > Until  know I've found the answers to my doubts in the manual, demos or in the 
> > mailing list archive.  
> > (So Sorry if I'm asking something that's not reasonable.) 
> > 
> > What kind of MeshFunctions are we able to plot with Dolfin,
> > (using viper or  file vtk format)?
> > For instance is there a direct way to plot the subdomain markers defined in a 
> > MeshFunction<unsigned int>?
> > 
> > If we are dealing with complex domains it would be a great help, so one could 
> > be shore that the markers are  well defined. 
> > 
> > 
> > Thanks in advance.
> 
> Try this:
> 
> from dolfin import *
> mesh = UnitSquare(5,5)
> #mesh = UnitCube(5,5,5)
> mf = MeshFunction("uint", mesh, mesh.topology().dim())
> tmp = mf.values()
> tmp[::2] = 4
> plot(mf)
> 
> Ola

I think the problem may be that it's not possible to plot a mesh
function defined on the facets of a mesh. Viper can't handle that as
far as I remember. It would be very good if this could be added since
it's a simple way to debug boundary conditions.

-- 
Anders