Re: [deal.II] new shape function definition

2016-06-07 Thread Daniel Arndt
Bastien, as there already is the Polynomial class HermiteInterpolation you should create a new FiniteElement based on a TensorProductPolynomial. A good way might be to copy FE_Q_Base and modify it accordingly. Of course you need to think about how to interpolate values using this element, how

Re: [deal.II] new shape function definition

2016-06-06 Thread Bastien Lauras
Dear Guido and dear all, I am trying to implement Hermitian Cubic elements on a 1D beam. I am working on the vertical displacement y of the beam (only displacement allowed, the beam is inextensible). I need a continuous first derivative of the displacement, and this can easily be done with Herm