From 54f576698dafe4fd80520a9b5279acba6afbfd8e Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Sat, 23 Apr 2011 01:15:04 +0000
Subject: [PATCH] Add a section on the material_id.

git-svn-id: https://svn.dealii.org/trunk@23631 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/doc/doxygen/headers/glossary.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/deal.II/doc/doxygen/headers/glossary.h b/deal.II/doc/doxygen/headers/glossary.h
index 296965ee6c..541326ab9f 100644
--- a/deal.II/doc/doxygen/headers/glossary.h
+++ b/deal.II/doc/doxygen/headers/glossary.h
@@ -2,7 +2,7 @@
 //    $Id$
 //    Version: $Name$
 //
-//    Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 by the deal.II authors
+//    Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 by the deal.II authors
 //
 //    This file is subject to QPL and may not be  distributed
 //    without copyright and license information. Please refer
@@ -659,6 +659,16 @@ Article{BK07,
  * @ref GlossSupport "support points".</dd>
  *
  *
+ * <dt class="glossary">@anchor GlossMaterialId <b>Material id</b></dt>
+ * <dd>Each cell of a triangulation has associated with it a property called
+ * "material id". It is commonly used in problems with heterogenous
+ * coefficients to identify which part of the domain a cell is in and,
+ * consequently, which value the coefficient should have on this particular
+ * cell. The material id is inherited from mother to child cell upon mesh
+ * refinement.
+ * </dd>
+ *
+ *
  * <dt class="glossary">@anchor mg_paper <b>%Multigrid paper</b></dt>
  * <dd>The "multigrid paper" is a paper by B. Janssen and G. Kanschat, titled
  * "Adaptive multilevel methods with local smoothing", that
-- 
2.39.5