dolfin team mailing list archive

[Ola Skavhaug <skavhaug@xxxxxxxxx>]

On Wed, Jan 21, 2009 at 2:27 PM, Johan Hake <hake@xxxxxxxxx> wrote:

> On Wednesday 21 January 2009 00:40:02 Ola Skavhaug wrote:
> > This might be a swig bug. There used to be a problem related to the
> > way swig resolved new-style classes in the proxy layer. I tracked it
> > down once but could not fix it.
>
> Ok, you can be right here, but why did it work before the shared_ptr
> upgrade?


Did you upgrade swig as well?

Ola


>
>
> Johan
>
> > Ola
> >
> > 2009/1/20, Johan Hake <hake@xxxxxxxxx>:
> > > On Tuesday 20 January 2009 17:33:27 Harish Narayanan wrote:
> > >> I'm running into some problems setting parameters for JIT-compiled
> > >> functions. Here are a couple of brief examples to demonstrate what I
> > >> mean:
> > >>
> > >> 1. Works fine:
> > >>
> > >> from dolfin import *
> > >>
> > >> mesh = UnitSquare(2, 2)
> > >> S = FunctionSpace(mesh, "CG", 1)
> > >> s1 = Function(S, 'A*x[0]', {'A': 2.0})
> > >> plot(s1)
> > >> s1.A # 2.0 -- Correct
> > >>
> > >>
> > >> 2. Doesn't set values for parameter 'A' and hence gives me zeroes
> > >> everywhere:
> > >>
> > >> from dolfin import *
> > >>
> > >> mesh = UnitSquare(2, 2)
> > >> S = FunctionSpace(mesh, "CG", 1)
> > >> s2 = Function(S, 'A*x[0]')
> > >> s2.A = 2.0
> > >> plot(s2)
> > >> s2.A # 0.0 -- Incorrect
> > >>
> > >>
> > >> I think (2) used to work. Does anyone see an obvious problem?
> > >
> > > Yes this has worked perfectly well before the shared_ptr "upgrade". It
> > > seems like public attributes are not accessible from python anymore. I
> > > have encountered the same problem and I am quite frustrated about it.
> As
> > > with other things, I am on to it.
> > >
> > > I hope it is a solvable bug, but I havn't been able to get through yet.
> I
> > > have
> > > wrapped some simple example code that use shared_ptr, which just work,
> so
> > > I do see some light!
> > >
> > > Stay tuned.
> > >
> > > Johan
> > >
> > >
> > > _______________________________________________
> > > DOLFIN-dev mailing list
> > > DOLFIN-dev@xxxxxxxxxx
> > > http://www.fenics.org/mailman/listinfo/dolfin-dev<https://www.fenics.org/mailman/listinfo/dolfin-dev>
>
>
>


-- 
Ola Skavhaug