More than visualization, I need to be able to associate sensitivities with spatial locations for uncertainty propogation. I can do this via the GMV/Exodus route but was looking for a more direct route via libMesh.
On Wed, Feb 11, 2015 at 8:49 PM, Roy Stogner <[email protected]> wrote: > > "Does not compute" is right in general. DoFs don't have locations, > they have functionals, and it's only in the Lagrange case that those > functions are delta functions at particular locations. You were > asking me about adaptive p refinement recently, and one thing I forgot > to mention is that libMesh adaptive p refinement *doesn't work* with > Lagrange FE, so if that's where you're headed then you'll want to make > sure you have Hierarchic-FE-compatible code from the start. > > If you're trying to visualize the output of sensitivities to spatially > distributed parameters, my suggestion is to zero out the solution > vector (or swap it with a zero'ed clone if you want to save the > original), then set the sensititivity values into the vector at each > dof index, then send the output to Exodus or GMV. That way you'll get > correct output regardless of FE type. > --- > Roy > > > On Thu, 12 Feb 2015, Derek Gaston wrote: > > That question doesn't compute. Do you mean get the xyz position of the >> node associated with a Lagrange DoF? >> > > On Wed Feb 11 2015 at 8:25:57 PM EST Vikram Garg <[email protected] >> > >> wrote: >> >> Can someone tell me how one can obtain the xyz coordinates corresponding >>> to >>> a global dof id ? >>> >> -- Vikram Garg Postdoctoral Associate Predictive Engineering and Computational Science (PECOS) The University of Texas at Austin http://web.mit.edu/vikramvg/www/ http://www.runforindia.org/runners/vikramg ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
