From ff3d604a81fcd9e49c5ea9f94d6af4c12d0704e5 Mon Sep 17 00:00:00 2001
From: Tobias Leicht
(Luca Heltai 2007/09/10)
+
Extendend: The possibilities of graphical output via the DataOut,
+ DataOutFaces and DataOutRotation classes have been extended by the
+ ability to perform a postrocessing step before a given data
+ vector is written to the output. This way, derived variables can be
+ written instead of the original data. To this end, there is a new
+ version of DataOut_DoFData::add_data_vector
taking a
+ data vector and a DataPostprocessor, which performs the actual
+ calculation of new data based on the values and possibly derivatives
+ of the original data at each point of the patch.
+
+ (Tobias Leicht 2007/09/10)