On Thu, Oct 01, 2009 at 04:50:20PM +0100, Garth N. Wells wrote:
It would be useful if Coefficient had the eval member functions which
are common to Expression and Function. Coefficient may no longer be the
best name, but are there any objections?
Here's an example of how I would like to use it: I have a Surface class
which has a function for representing the surface. This can be a
user-defined or a fe function (it cannot change from one to the other).
I would like to store it as Coefficient with an eval interface like
Coefficient::evaluate(double* values,
const double* coordinates,
const ufc::cell& cell) const;
Sure, but shouldn't the eval(double* values, const Data& data) suffice
for this? It would be good to avoid too many versions of eval.
