]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
Clarify docs.
authorwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Wed, 1 Aug 2001 11:59:29 +0000 (11:59 +0000)
committerwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Wed, 1 Aug 2001 11:59:29 +0000 (11:59 +0000)
git-svn-id: https://svn.dealii.org/trunk@4866 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/deal.II/include/fe/fe_tools.h

index 46860d6e23017d28e05bc09f6fe90c7ddfe9a9ff..963a011877f897d2203ed37ecd37c9e876f66489 100644 (file)
@@ -171,17 +171,28 @@ class FETools
                                      * @p{dof2} need to be @ref{DoFHandler}
                                      * based on the same triangulation.
                                      *
-                                     * This function is interesting for
-                                     * e.g. extrapolating patchwise a
-                                     * piecewise linear dual solution
-                                     * to a piecewise quadratic dual
-                                     * solution.
+                                     * This function is interesting
+                                     * for e.g. extrapolating
+                                     * patchwise a piecewise linear
+                                     * solution to a piecewise
+                                     * quadratic solution.
+                                     *
+                                     * Note that the resulting field
+                                     * does not satisfy continuity
+                                     * requirements of the given
+                                     * finite elements. You have to
+                                     * apply
+                                     * @ref{ConstraintMatrix}@p{::distribute}
+                                     * with the hanging node
+                                     * constraints of the second DoF
+                                     * handler object to make the
+                                     * output continuous again.
                                      */
     template <int dim, typename number>
     static void extrapolate(const DoFHandler<dim> &dof1,
-                           const Vector<number> &z1,
+                           const Vector<number>  &z1,
                            const DoFHandler<dim> &dof2,
-                           Vector<number> &z2);    
+                           Vector<number>        &z2);    
   
   
                                     /**

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