Line data    Source code

       1              : /*
       2              :  * Copyright (c) 2015:  G-CSC, Goethe University Frankfurt
       3              :  * Author: Sebastian Reiter
       4              :  * 
       5              :  * This file is part of UG4.
       6              :  * 
       7              :  * UG4 is free software: you can redistribute it and/or modify it under the
       8              :  * terms of the GNU Lesser General Public License version 3 (as published by the
       9              :  * Free Software Foundation) with the following additional attribution
      10              :  * requirements (according to LGPL/GPL v3 §7):
      11              :  * 
      12              :  * (1) The following notice must be displayed in the Appropriate Legal Notices
      13              :  * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
      14              :  * 
      15              :  * (2) The following notice must be displayed at a prominent place in the
      16              :  * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
      17              :  * 
      18              :  * (3) The following bibliography is recommended for citation and must be
      19              :  * preserved in all covered files:
      20              :  * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
      21              :  *   parallel geometric multigrid solver on hierarchically distributed grids.
      22              :  *   Computing and visualization in science 16, 4 (2013), 151-164"
      23              :  * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
      24              :  *   flexible software system for simulating pde based models on high performance
      25              :  *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
      26              :  * 
      27              :  * This program is distributed in the hope that it will be useful,
      28              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      29              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      30              :  * GNU Lesser General Public License for more details.
      31              :  */
      32              : 
      33              : #ifndef __H__UG_bounding_box_util
      34              : #define __H__UG_bounding_box_util
      35              : 
      36              : #include "common/math/misc/shapes.h"
      37              : 
      38              : namespace ug{
      39              : 
      40              : ///     calculates the smallest axis aligned box that contains the given vertex
      41              : template <class TAAPos>
      42              : AABox<typename TAAPos::ValueType>
      43              : CalculateBoundingBox (Vertex* e, TAAPos aaPos)
      44              : {
      45              :         return AABox<typename TAAPos::ValueType>(aaPos[e], aaPos[e]);
      46              : }
      47              : 
      48              : ///     calculates the smallest axis aligned box that contains the given element
      49              : template <class TElem, class TAAPos>
      50              : AABox<typename TAAPos::ValueType>
      51            0 : CalculateBoundingBox (TElem* e, TAAPos aaPos)
      52              : {
      53              :         typedef AABox<typename TAAPos::ValueType> box_t;
      54            0 :         typename TElem::ConstVertexArray vrts = e->vertices();
      55            0 :         box_t box(aaPos[vrts[0]], aaPos[vrts[0]]);
      56            0 :         for(size_t i = 1; i < e->num_vertices(); ++i){
      57            0 :                 box = box_t(box, aaPos[vrts[i]]);
      58              :         }
      59            0 :         return box;
      60              : }
      61              : 
      62              : }//     end of namespace
      63              : 
      64              : #endif  //__H__UG_bounding_box_util