On Wed, Jun 29, 2016 at 11:52 AM, John Peterson <jwpeter...@gmail.com> wrote:
> > > On Wed, Jun 29, 2016 at 10:43 AM, Junchao Zhang <junchao.zh...@gmail.com> > wrote: > >> >> On Wed, Jun 29, 2016 at 11:28 AM, John Peterson <jwpeter...@gmail.com> >> wrote: >> >>> >>> >>> On Wed, Jun 29, 2016 at 10:00 AM, Junchao Zhang <junchao.zh...@gmail.com >>> > wrote: >>> >>>> I usually dump a mesh into a GMVIO file and then view it with ParaView. >>>> Suppose I find a cell is weird and want to examine it in debugger. I can >>>> get the cell ID in ParaView, which I guess is a sequential number for >>>> active elements. Then, how can I locate the cell (get the pointer to >>>> it) in >>>> debugger? Suppose we use ReplicatedMesh. >>>> >>> >>> The cell number in Paraview (make sure you select GlobalElementId, not >>> PedigreeElementID) is typically off-by-one (libmesh is zero-based, Exodus >>> is one-based) from the numbering in libmesh when you are using >>> ReplicatedMesh, unless renumbering happens in your simulation, then all >>> bets are off... >>> >>> >> ParaView gives a 0-based ID for elements dumped by libmesh. >> > > I'm curious why you think this. I just wrote out a 1 element mesh and > checked the element ID in paraview. It's 1, not 0. > > Image: > https://drive.google.com/file/d/0B9BK7pg8se_iSG80NGwxUkJiX0E/view?usp=sharing > Because I always see element 0 in ParaView. I use GMV files. > > > > > >> For adaptive mesh, they are only active elements. Hope libmesh could >> provide an interface to query active elements, otherwise it is very >> inconvenient to debug AMR code. >> > > libmesh provides many such interfaces. Paul already described how to > print element IDs in the debugger. If you want to print them from code, > just add print statements to do that (loop over active elements, etc). > OK, I will use this approach. > > -- > John > ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
