Re: [Libmesh-users] reading in and processing data obtained from another libmesh output

2010-05-07 Thread Karen Lee
On Fri, May 7, 2010 at 5:00 PM, John Peterson wrote: > On Fri, May 7, 2010 at 3:53 PM, Karen Lee wrote: > > > >> Distinct, yes, but have you checked whether it is inverted? Assuming > >> this is a tet, it will be inverted (and thus have negative jacobians) > >> if you take one of the vertices a

Re: [Libmesh-users] reading in and processing data obtained from another libmesh output

2010-05-07 Thread John Peterson
On Fri, May 7, 2010 at 3:53 PM, Karen Lee wrote: > >> Distinct, yes, but have you checked whether it is inverted?  Assuming >> this is a tet, it will be inverted (and thus have negative jacobians) >> if you take one of the vertices and 'pull it through' the opposite >> face.  You say the solution

Re: [Libmesh-users] reading in and processing data obtained from another libmesh output

2010-05-07 Thread Karen Lee
> Distinct, yes, but have you checked whether it is inverted? Assuming > this is a tet, it will be inverted (and thus have negative jacobians) > if you take one of the vertices and 'pull it through' the opposite > face. You say the solution came from a previous libmesh run, what > mesh format did

Re: [Libmesh-users] reading in and processing data obtained from another libmesh output

2010-05-07 Thread John Peterson
On Fri, May 7, 2010 at 3:03 PM, Karen Lee wrote: > Dear libmesh users and developers, > > 1) I'm having a problem where I'm reading in the solution obtained from a > previous successful libmesh run to try to get the gradient of the solution > and I'm getting the following error: > > ERROR: negativ

[Libmesh-users] reading in and processing data obtained from another libmesh output

2010-05-07 Thread Karen Lee
Dear libmesh users and developers, 1) I'm having a problem where I'm reading in the solution obtained from a previous successful libmesh run to try to get the gradient of the solution and I'm getting the following error: ERROR: negative Jacobian: -2.55565e-10 in element 0 [0] src/fe/fe_map.C, lin