Cool - I wasn't arguing against this in any way... just wanted to hear your thoughts on the trade offs. Thanks!
Derek On Sun, Jan 10, 2016 at 11:28 AM David Knezevic <david.kneze...@akselos.com> wrote: > On Sun, Jan 10, 2016 at 10:01 AM, Derek Gaston <fried...@gmail.com> wrote: > >> Just a question: why the "isolated node" instead of scalar variables for >> this constraint? >> >> I'm just wondering what you see as the trade offs between both. >> > > It's really just a convenience issue. Scalar variables would also work > since of course at the end of the day all we need is extra rows with which > to impose the constraints. > > However, the reason I prefer an "isolated node" is that I already have > code for imposing these types of constraints between "non-isolated nodes". > That code works seamlessly with isolated nodes too, whereas using SCALARS > would require separate code paths for isolated vs. non-isolated nodes. > > Also, given that we already have NodeElem and Exodus has SPHERE elements, > I don't see any downside to that approach. > > David > > > > > On Fri, Jan 8, 2016 at 4:16 PM David Knezevic <david.kneze...@akselos.com> >> wrote: >> >>> On Fri, Jan 8, 2016 at 4:07 PM, Roy Stogner <royst...@ices.utexas.edu> >>> wrote: >>> >>> > >>> > On Fri, 8 Jan 2016, David Knezevic wrote: >>> > >>> > If I try to do this in the simplest way, e.g. by adding a node to a >>> mesh, >>> >>> I see that the isolated node gets deleted on the call to >>> >>> renumber_nodes_and_elem. This is not surprising since we need to >>> delete >>> >>> orphaned nodes during mesh coarsening. But perhaps I could add a way >>> to >>> >>> indicate "ophaned nodes that should not be deleted"? >>> >>> >>> >> >>> > Create a NodeElem and add that too? >>> > >>> >>> >>> Ah, OK, that sounds like the right way to do it. I'll try that, thanks! >>> >>> David >>> >>> ------------------------------------------------------------------------------ >>> Site24x7 APM Insight: Get Deep Visibility into Application Performance >>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month >>> Monitor end-to-end web transactions and take corrective actions now >>> Troubleshoot faster and improve end-user experience. Signup Now! >>> http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 >>> _______________________________________________ >>> Libmesh-users mailing list >>> Libmesh-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/libmesh-users >>> >> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
