Hello.
I would like to define a threshold on the jacobian determinants such that the effective determinant for a quadrature over an element is
|J_{effective}| = \max( |J_{element}|, \epsilon )
where \epsilon > 0 is an arbitrary threshold.
How shall I proceed?
The PML example does seem to correspond to my need, since it change the coordinate system, which might fail in the case of |J_{element}| << \epsilon .