* is the same as a @p cell_iterator takes when started with @p begin_active and
* promoted with the <tt>++</tt> operator.
*
- * You can use the @p distribute_cell_to_dof_vector function of the
- * DoFHandler class to convert cell based data to a data
- * vector with values on the degrees of freedom, which can then be
- * added to a DataOut object to be printed. But also you can
- * add a cell based data vector itself to a DataOut object,
- * see the @p DataOut::add_data_vector functions.
+ * This data, one number per active cell, can be used to generate
+ * graphical output by directly passing it to the DataOut class
+ * through the DataOut::add_data_vector function. Alternatively, it
+ * can be interpolated to the nodal points of a finite element field
+ * using the DoFTools::distribute_cell_to_dof_vector function.
*
* Presently, there is the possibility to compute the following values from the
* difference, on each cell: @p mean, @p L1_norm, @p L2_norm, @p Linfty_norm,