From: Bruno Turcksin <bruno.turcksin@gmail.com>
Date: Wed, 30 Sep 2015 19:30:08 +0000 (-0500)
Subject: Improve documentation for the function vertex_to_cell_map.
X-Git-Tag: v8.4.0-rc2~354^2~2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d5da05dd79af41d5bbc320ce0432a73841f045f1;p=dealii.git

Improve documentation for the function vertex_to_cell_map.
---

diff --git a/include/deal.II/grid/grid_tools.h b/include/deal.II/grid/grid_tools.h
index 5daf06dd66..38ec4d33cd 100644
--- a/include/deal.II/grid/grid_tools.h
+++ b/include/deal.II/grid/grid_tools.h
@@ -632,8 +632,12 @@ namespace GridTools
 
 
   /**
-   * Return the adjacent cells of all the vertices. The vertices are ordered by
-   * their ID.
+   * Return the adjacent cells of all the vertices. If a vertex is also a
+   * hanging node, the associated coarse cell is also returned. The vertices
+   * are ordered by the vertex index. This is the number returned by the
+   * function <code>cell-@>vertex_index()</code>. Notice that only the
+   * indices marked in the array returned by
+   * Triangulation<dim,spacedim>::get_used_vertices() are used.
    */
   template <int dim, int spacedim>
   std::vector<std::set<typename Triangulation<dim,spacedim>::active_cell_iterator> >
diff --git a/source/grid/grid_tools.cc b/source/grid/grid_tools.cc
index 828d0ccd92..9756b80b16 100644
--- a/source/grid/grid_tools.cc
+++ b/source/grid/grid_tools.cc
@@ -1611,7 +1611,7 @@ next_cell:
     for (; cell!=endc; ++cell)
       for (unsigned int i=0; i<GeometryInfo<dim>::faces_per_cell; ++i)
         {
-          if ((cell->neighbor_level(i)>=0) && (cell->neighbor_level(i)<cell->level()))
+          if ((cell->at_boundary(i)==false) && (cell->neighbor_level(i)<cell->level()))
             {
               typename Triangulation<dim,spacedim>::active_cell_iterator adjacent_cell =
                 cell->neighbor(i);