Question #102925 on DOLFIN changed: https://answers.launchpad.net/dolfin/+question/102925
Richard Norton gave more information on the question: Equivalently, would it be possible to define a function/expression that is piecewise constant in the following way... Given u = Function(V), V = FunctionSpace(mesh,"CG",1), the expression returns a vector valued function where each component is in FunctionSpace(mesh,"DG",0) so that if abs(u.dx(1)) < 1 in a triangle of the mesh then as_vector( [u.dx(0), 0]) is returned else as_vector( [u.dx(0), 2*(u.dx(1)**2 -1)*u.dx(1)] ) is returned. Is u.dx(0) a function in FunctionSpace(mesh,"DG",0)? -- You received this question notification because you are a member of DOLFIN Team, which is an answer contact for DOLFIN. _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
