Thanks David, this is helpful. I have a related question:
L2_LAGRANGE provides the *discontinuous* interpolation using Lagrange polynomials, so I could use a quad4 and have as high as third order (currently, and I will be glad to contribute more). However, is there a way to achieve the same order of *C0 continuous* Lagrange interpolation on quad4. This would require that the node and edge dofs be consolidated between elements. I would appreciate your comments. Thanks, Manav On 02/21/2013 10:55 AM, Manav Bhatia wrote: > Hi,> > I am curious if the library allows for use of Lagrange elements in C0 > discontinuous interpolation. We have L2_LAGRANGE basis functions, which are the same as the LAGRANGE basis functions but where dofs are associated with elements rather than the nodes, and hence can be discontinuous (hence the "L2" naming). I guess this is what you're asking about? > Also, is it allowed to have an Lagrange > interpolation of an order that is higher than the geometry order? For > example, can I use a 4th order Lagrange interpolation on a quad4? You can do this with L2_LAGRANGE, though I think L2_LAGRANGE currently only goes up to third order (a patch that allows higher order would be welcome!) David ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
