include the first picture

git-svn-id: https://svn.dealii.org/trunk@28661 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/examples/step-42/doc/results.dox b/deal.II/examples/step-42/doc/results.dox
index d7974430c93b4cc2ea9941eded7ab639c063be17..d6296ac41e04ec9f51defc8138308191208c3927 100644 (file)
--- a/deal.II/examples/step-42/doc/results.dox
+++ b/deal.II/examples/step-42/doc/results.dox
@@ -917,6 +917,25 @@ are iterated out at first. After that the Newton method has only to struggle wit
 plasticity. For the finer meshes there is quadratic convergence not until the
 last 4 or 5 newton iterations.
 
+<table align="center">
+  <tr>
+    <td valign="top">
+      0 &nbsp;
+    </td>
+    <td valign="top">
+      <img src="http://www.dealii.org/images/steps/developer/step-42-CellConstitution.png" alt="">
+    </td>
+  </tr>
+</table>
+
+The picture shows the adaptive refinement and as well how much a cell is
+plastified druing the contact with the ball. In the middle - where the
+mesh is finest - you can see the hollow caused by the ball. The blue
+color means that this cell contains only elastic quadrature points in
+contrast to the red cells in which all quadrature points are plastified.
+Since we used trilinear ansatz functions each cell contains eight
+of these points which may or may not be elastic or plastic.  
+
 <a name="extensions"></a>
 <h1>Possibilities for extensions</h1>