Re: [Gmsh] 2D Mesh (P2) has some reverse ordering, negative determinants

2020-08-17 Thread Christophe Geuzaine
> On 15 Aug 2020, at 10:52, Marc wrote: > > Hello all, > > > > Not sure if this is a bug, but I have been trying to figure out where some > weird results are coming from and I think it is because some elements in the > meshes are ordered in reverse, some of the time. Here is a simple

[Gmsh] 2D Mesh (P2) has some reverse ordering, negative determinants

2020-08-15 Thread Marc
Hello all, Not sure if this is a bug, but I have been trying to figure out where some weird results are coming from and I think it is because some elements in the meshes are ordered in reverse, some of the time.  Here is a simple example: // Gmsh project created on Fri Aug 14 22:33:15 2020 //+