On Tue, Sep 28, 2010 at 2:50 PM, Roy Stogner <[email protected]> wrote:
>
> The SVN head's currently pretty stable from my perspective, with the
> exception of rbOOmit stuff, which David tells me is now in shape for
> an immediate release.

Hi Roy,

I have a local change fixing the setting of the time variable in the
FEM/DiffContext.

In order to do that, I needed access to the "deltat" variable from the
System which created the FEMContext.

The approach I'm currently using requires the creating System be
derived from a FEMSystem, so that the existence of deltat is
guaranteed.  We discussed moving deltat to System itself so that this
assumption is no longer required, but IIRC correctly you weren't
super-enthusiastic about that solution, since forcing a deltat
parameter on the base System class (which may represent a steady set
of equations) was less than desirable.

Should I go ahead and move deltat to System, or did you have something
else in mind?  Alternatively we could wait until after the release,
but this does fix a potential bug in FEMContext so it might be good to
get out now.

-- 
John

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