Line data    Source code

       1              : /*
       2              :  * Copyright (c) 2011-2015:  G-CSC, Goethe University Frankfurt
       3              :  * Author: Andreas Vogel
       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__LIB_DISC__QUADRATURE__GAUSS_QUAD__GAUSS_QUAD__
      34              : #define __H__UG__LIB_DISC__QUADRATURE__GAUSS_QUAD__GAUSS_QUAD__
      35              : 
      36              : #include "common/common.h"
      37              : #include "../quadrature.h"
      38              : #include "lib_disc/reference_element/reference_element.h"
      39              : 
      40              : namespace ug{
      41              : 
      42              : /// fixed order gauss quadrature
      43              : template <typename TRefElem, int order>
      44              : class GaussQuadrature;
      45              : 
      46              : /// wrapper to ease implementation
      47              : template <typename TImpl, int TDim, int TOrder, int TNip>
      48              : class GaussQuadBase
      49              : {
      50              :         public:
      51              :         /// Dimension of integration domain
      52              :                 static const size_t dim = TDim;
      53              : 
      54              :         /// Position Type in Reference Element Space
      55              :                 typedef MathVector<dim> position_type;
      56              : 
      57              :         ///     Type of weights
      58              :                 typedef number weight_type;
      59              : 
      60              :         /// Order of quadrature rule
      61              :                 static const size_t p = TOrder;
      62              : 
      63              :         /// Number of integration points
      64              :                 static const size_t nip = TNip;
      65              : 
      66              :         public:
      67              :         /// number of integration points
      68              :                 static size_t size() {return nip;}
      69              : 
      70              :         /// returns i'th integration point
      71              :                 static const MathVector<dim>& point(size_t i)
      72            0 :                         {UG_ASSERT(i < size(), "Wrong index"); return m_vPoint[i];}
      73              : 
      74              :         /// returns all positions in an array of size()
      75              :                 static const MathVector<dim>* points() {return m_vPoint;}
      76              : 
      77              :         /// return the i'th weight
      78              :                 static number weight(size_t i)
      79            0 :                         {UG_ASSERT(i < size(), "Wrong index"); return m_vWeight[i];}
      80              : 
      81              :         /// returns all weights in an array of size()
      82              :                 static const number* weights() {return m_vWeight;}
      83              : 
      84              :         /// returns the order
      85              :                 static size_t order() {return p;}
      86              : 
      87              :         protected:
      88              :         /// integration points
      89              :                 static MathVector<dim> m_vPoint[nip];
      90              : 
      91              :         /// weights
      92              :                 static number m_vWeight[nip];
      93              : };
      94              : 
      95              : /// flexible order gauss quadrature
      96              : /**
      97              :  * Providing gauss quadrature for an reference element. This class wrapps a
      98              :  * static GaussQuadrature into the Quadrature interface.
      99              :  *
     100              :  * \tparam              TRefElem                Reference Element Type
     101              :  */
     102              : template <typename TRefElem>
     103              : class FlexGaussQuadrature
     104              :         : public QuadratureRule<TRefElem::dim>
     105              : {
     106              :         public:
     107              :         ///     Constructor
     108              :                 FlexGaussQuadrature(int order);
     109              : 
     110              :         ///     Destructor
     111            0 :                 ~FlexGaussQuadrature() {}
     112              : };
     113              : 
     114              : } // namespace ug
     115              : 
     116              : // include implementation
     117              : #include "gauss_quad_vertex.h"
     118              : #include "gauss_quad_edge.h"
     119              : #include "gauss_quad_triangle.h"
     120              : #include "gauss_quad_quadrilateral.h"
     121              : #include "gauss_quad_tetrahedron.h"
     122              : #include "gauss_quad_pyramid.h"
     123              : #include "gauss_quad_prism.h"
     124              : #include "gauss_quad_hexahedron.h"
     125              : #include "gauss_quad_octahedron.h"
     126              : 
     127              : 
     128              : #endif /* __H__UG__LIB_DISC__QUADRATURE__GAUSS_QUAD__GAUSS_QUAD__ */