/*
 * Copyright (c) 2014:  G-CSC, Goethe University Frankfurt
 * Author: Sebastian Reiter
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 */


/** \page pageSTLesson12 Lesson 12 - RefinementProjectors

This tutorial demonstrates the usage of different refinement projectors.
Refinement projectors are important if calculations are to be performed on
spherical or cylindrical domains or if domains contain spherical or cylindrical
parts.

ATTENTION: When applying a spherical projector to the whole geometry, one should
make sure that the center of the projection aligns with a vertex or is located
in a cutout.
The same holds true for a cylinder. Here either the axis of the cylinder should
pass through a set of edges or should also be located in a cutout.

Below you'll find the scripts sources.
They are the same as in
<tt>apps/tutorials/tut12_refinement_projectors.lua</tt>
\include tut12_refinement_projectors.lua
*/
