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git-svn-id: https://svn.dealii.org/branches/branch_manifold_id_intermediate@33148 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/include/deal.II/grid/tria.h b/deal.II/include/deal.II/grid/tria.h
index d36d558629ba10ed00a451f4019b5e413e187407..5af6ef9b2959496fb1db200940348a856cbbf62e 100644 (file)
--- a/deal.II/include/deal.II/grid/tria.h
+++ b/deal.II/include/deal.II/grid/tria.h
@@ -3371,6 +3371,11 @@ private:
    * in 2d and higher where we have space in the structures that store
    * data for faces, but in 1d there is no such space for faces.
    *
+   * @note Manifold objects are pretty useless for points since they are
+   * neither refined nor are their interiors mapped. We nevertheless allow
+   * storing manifold ids for points to be consistent in dimension-independent
+   * programs.
+   *
    * The field is declared as a pointer for a rather mundane reason:
    * all other fields of this class that can be modified by the
    * TriaAccessor hierarchy are pointers, and so these accessor