dolfin team mailing list archive

[Johan Hake <johan.hake@xxxxxxxxx>]

On Thursday September 16 2010 12:27:57 Anders Logg wrote:
> On Thu, Sep 16, 2010 at 12:23:48PM -0700, Johan Hake wrote:
> > On Thursday September 16 2010 11:46:02 Anders Logg wrote:
> > > On Thu, Sep 16, 2010 at 11:24:34AM -0700, Johan Hake wrote:
> > > > Hello!
> > > > 
> > > > I added the method area to the Face class. I guess a Face is always a
> > > > triangle so it should be safe.
> > > 
> > > Yes.
> > 
> > ok
> > 
> > > > There might be other methods that can be usefull like
> > > > normal? Others?
> > > 
> > > Probably but can't think of any more right now.
> > > 
> > > > Should we do the same for Facet, but then check for topological
> > > > dimension before making the computation, a la the generalized volume
> > > > in CellTypes?
> > > 
> > > Facet should have normal but not area.
> > 
> > I wont add these now. I first thought they were straight forward, but all
> > kindoff R^1, R^2, R^3 stuff needs to be checked for. Leave it for now...
> > 
> > Added a blueprint!
> 
> I thought I already did that. We have Cell.normal() which should
> handle that.

That just calls normal of TriangleCell or TetrahedronCell. TriangleCell only 
returns a normal for topological dimension 2. 

It is really not difficult, it just took some more time than I anticipated, 
and I do not need the feature. I just needed area :)

Johan