On 12/20/20 2:58 AM, Alberto Salvadori wrote:

Point<dim> centroid = cell->face(face_number)->barycenter() ;

provides always centroid = {0,0,0}, whereas the following

Point<dim> centroid = cell->face(face_number)->center() ;

returns the correct amount.

Am I misunderstanding something or may it be a bug?

I suspect that you forgot to try running your code in debug mode :-) In debug mode, I'm pretty sure you would run into this assertion:

  template <int structdim, int dim, int spacedim>
  Point<spacedim>
  barycenter(const TriaAccessor<structdim, dim, spacedim> &)
  {
    // this function catches all the cases not
    // explicitly handled above
    Assert(false, ExcNotImplemented());
    return Point<spacedim>();
  }

In other words, the function is simply not implemented -- though I suspect that it would not be very difficult to do so.

Best
 W.


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Wolfgang Bangerth          email:                 [email protected]
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