Range for a Dirichlet Boundary Condition?
 

Hi,

What I'm looking to do is set a range for a dirichlet boundary condition?

I guess it's kind of saying it will be dirichlet within a minimum and maximum value, otherwise it becomes neumann.

I've had a look at some of the other boundary conditions around and I'm not sure whether there is anything that might satisfy this.

Anyone have any suggestions?

Thanks