Dear Petsc Users,
I'm using DMPlexCreateFromCellList to create my DM. I would like to have
an order 2 geometry.
It's working fine in 2D for elements of type Q9.
I checked that it's working correctly by using
DMPlexComputeCellGeometryFEM, and compute the value of the determinant
(CheckMeshGeometry of dm/impls/plex/examples/tutorials/ex2.c)
I can import H8 elements, it's working fine.
But for H27 element, it's not working. I really don't know how to order
my vertex in the cells array. So far, the determinant is zero...
I don't know where to look in order to find this information. I tried
the function DMPlexGetRawFaces_Internal of the file
https://www.mcs.anl.gov/petsc/petsc-current/src/dm/impls/plex/plexinterpolate.c.html#DMPlexGetRawFaces_Internal
but it didn't help me.
Could you please point me where to look ?
Thanks, and happy new year !
Yann
