]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
Reference the glossary instead of repeating documentation.
authorbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Wed, 3 Nov 2010 12:05:43 +0000 (12:05 +0000)
committerbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Wed, 3 Nov 2010 12:05:43 +0000 (12:05 +0000)
git-svn-id: https://svn.dealii.org/trunk@22597 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/include/deal.II/fe/fe_values.h
deal.II/include/deal.II/fe/mapping.h

index b87dbe2936095381ed7e7f81a6277a3cdc09aef0..c9b7e01974c38f469af88aa26896b133e8679a46 100644 (file)
@@ -3180,17 +3180,6 @@ class FEValues : public FEValuesBase<dim,spacedim>
  * when evaluating something on the surface of a cell. All the data
  * that is available in the interior of cells is also available here.
  *
- * On surfaces of mesh cells, boundary forms are
- * additional values that can be computed. This class provides the
- * interface to access those. Implementations are in derived classes
- * FEFaceValues and FESubfaceValues.
- *
- * The boundary form is the cross product of the images of the unit
- * tangential vectors. Therefore, it is the unit normal vector
- * multiplied with the surface element. Since it may be cheaper to
- * compute the boundary form immediately, use this value to integrate
- * <tt>n.ds</tt>.
- *
  * See FEValuesBase
  *
  *  @author Wolfgang Bangerth, 1998, Guido Kanschat, 2000, 2001
@@ -3236,18 +3225,7 @@ class FEFaceValuesBase : public FEValuesBase<dim,spacedim>
                                      * Boundary form of the
                                      * transformation of the cell at
                                      * the <tt>i</tt>th quadrature point.
-                                     *
-                                     * The boundary form is the cross
-                                     * product of the images of the
-                                     * unit tangential
-                                     * vectors. Therefore, it is the
-                                     * unit normal vector multiplied
-                                     * with the surface
-                                     * element. Since it may be
-                                     * cheaper to compute the
-                                     * boundary form immediately, use
-                                     * this value to integrate
-                                     * <tt>n.ds</tt>.
+                                     * See @ref GlossBoundaryForm .
                                      */
     const Tensor<1,spacedim> & boundary_form (const unsigned int i) const;
 
index d3dc65cb7473576b292df01ce5afc79ee8080968..b6237a6a676768b28fb7e2059c22f6c95e464247 100644 (file)
@@ -576,25 +576,21 @@ class Mapping : public Subscriptor
 
 
                                     /**
-                                     * Performs the same as @p fill_fe_values
-                                     * on a face.
-                                     * Additionally, @p boundary_form and
-                                     * @p normal_vectors can be
-                                     * computed on surfaces. The
-                                     * boundary form is the vector
-                                     * product of the image of
-                                     * coordinate vectors on the
-                                     * surface of the unit
-                                     * cell. It is a
-                                     * vector normal to the surface,
-                                     * pointing outwards and having
-                                     * the length of the surface
-                                     * element.
-                                     * Therefore, it is more economic
-                                     * to use the boundary form
-                                     * instead of the product of the
-                                     * unit normal and the
-                                     * transformed quadrature weight.
+                                     * Performs the same as @p
+                                     * fill_fe_values on a face.
+                                     * Additionally, @p boundary_form
+                                     * (see @ref GlossBoundaryForm)
+                                     * and @p normal_vectors can be
+                                     * computed on surfaces. Since
+                                     * the boundary form already
+                                     * contains the determinant of
+                                     * the Jacobian of the
+                                     * transformation, it is
+                                     * sometimes more economic to use
+                                     * the boundary form instead of
+                                     * the product of the unit normal
+                                     * and the transformed quadrature
+                                     * weight.
                                      */
     virtual void
     fill_fe_face_values (const typename Triangulation<dim,spacedim>::cell_iterator &cell,

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