local_finite_element_provider_impl.h

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/*
 * Copyright (c) 2010-2015:  G-CSC, Goethe University Frankfurt
 * Author: Andreas Vogel
 * 
 * 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.
 */
 
#ifndef __H__UG__LIB_DISC__LOCAL_FINITE_ELEMENT__LOCAL_FINITE_ELEMENT_PROVIDER_IMPL__
#define __H__UG__LIB_DISC__LOCAL_FINITE_ELEMENT__LOCAL_FINITE_ELEMENT_PROVIDER_IMPL__
 
#include "common/common.h"
#include "local_finite_element_provider.h"
 
namespace ug{
 
// LocalFiniteElementProvider
 
template <int dim, typename TShape, typename TGrad>
std::map<LFEID, LocalFiniteElementProvider::LocalShapeFunctionSets<dim, TShape, TGrad> >&
LocalFiniteElementProvider::lsfs_map()
{
  typedef std::map<LFEID, LocalShapeFunctionSets<dim, TShape, TGrad> > Map;
  static Map map;
  return map;
};
 
template <int dim>
std::map<LFEID, LocalFiniteElementProvider::DimLocalDoFSets<dim> >&
LocalFiniteElementProvider::lds_map()
{
  typedef std::map<LFEID, DimLocalDoFSets<dim> > Map;
  static Map map;
  return map;
}
 
template <int dim, typename TShape, typename TGrad>
void LocalFiniteElementProvider::
register_set(const LFEID& id,
             ConstSmartPtr<LocalShapeFunctionSet<dim, TShape, TGrad> > set)
{
//  get type of map
  typedef std::map<LFEID, LocalShapeFunctionSets<dim, TShape, TGrad> > Map;
  Map& map = inst().lsfs_map<dim, TShape, TGrad>();
  LocalShapeFunctionSets<dim, TShape, TGrad>& vLSFS = map[id];
  const ReferenceObjectID roid = set->roid();
 
  if(vLSFS[roid].valid()){
    UG_THROW("LocalFiniteElementProvider::register_set(): "
        "Reference type already registered for trial space: "<<id<<" and "
        " Reference element type "<<roid<<".");
  } else {
    vLSFS[roid] = set;
  }
 
  if(m_mContSpace.find(id) == m_mContSpace.end()){
    m_mContSpace.insert(std::map<LFEID, bool>::value_type(id, set->continuous()));
  }else{
    if(m_mContSpace[id] != set->continuous())
      UG_THROW("LocalFiniteElementProvider::register_set(): "
          "Reference type says continuous:"<<set->continuous()<<", but "
          " other Reference element says "<<m_mContSpace[id]<<".");
  }
 
//  register also as DimLocalDoFSet
  register_set(id, set.template cast_dynamic<DimLocalDoFSet<dim> >());
}
 
template <int dim>
void LocalFiniteElementProvider::
register_set(const LFEID& id,
             ConstSmartPtr<DimLocalDoFSet<dim> > set)
{
//  get type of map
  typedef std::map<LFEID, DimLocalDoFSets<dim> > Map;
  Map& map = inst().lds_map<dim>();
  DimLocalDoFSets<dim>& vLDS = map[id];
 
  const ReferenceObjectID roid = set->roid();
 
  if(vLDS[roid].valid()){
    UG_THROW("LocalFiniteElementProvider::register_set(): "
         "Reference type already registered for trial space: "<<id<<" and "
         " Reference element type "<<roid<<".");
  } else {
    vLDS[roid] = set;
  }
 
//  register also as LocalDoFSet
  register_set(id, set.template cast_dynamic<LocalDoFSet>());
}
 
 
template <int dim, typename TShape, typename TGrad>
ConstSmartPtr<LocalShapeFunctionSet<dim, TShape, TGrad> >
LocalFiniteElementProvider::
getptr(ReferenceObjectID roid, const LFEID& id, bool bCreate)
{
//  init provider and get map
  typedef std::map<LFEID, LocalShapeFunctionSets<dim, TShape, TGrad> > Map;
  Map& map = inst().lsfs_map<dim, TShape, TGrad>();
 
//  search for identifier
  typename Map::const_iterator iter = map.find(id);
  if(iter == map.end() || (iter->second)[roid].invalid())
  {
  //  try to create the set
    if(bCreate){
      create_set(roid, id);
      return getptr<dim, TShape, TGrad>(roid, id, false);
    }
    return SPNULL;
  }
 
//  return shape function set
  return (iter->second)[roid];
}
 
template <int dim, typename TShape, typename TGrad>
const LocalShapeFunctionSet<dim, TShape, TGrad>&
LocalFiniteElementProvider::
get(ReferenceObjectID roid, const LFEID& id, bool bCreate)
{
  ConstSmartPtr<LocalShapeFunctionSet<dim, TShape, TGrad> > ptr =
      getptr<dim,TShape,TGrad>(roid, id, bCreate);
 
  if(ptr.valid()) return *ptr;
  else
    UG_THROW("LocalFiniteElementProvider: Local Shape Function Set not "
         "found for "<<roid<<" (world dim: "<<dim<<") and type = "<<id<<
         ". (This is usually due to: a) The function set is not implemented at "
         " all, or b) The finite element space is discontinuous but the "
         "evaluation is requested on a subelement, i.e. a grid object "
         "with dimension less than the dimension where the finite element"
         " space is defined.)");
}
 
template <int dim>
ConstSmartPtr<DimLocalDoFSet<dim> >
LocalFiniteElementProvider::
get_dof_ptr(ReferenceObjectID roid, const LFEID& id, bool bCreate)
{
//  init provider and get map
  typedef std::map<LFEID, DimLocalDoFSets<dim> > Map;
  Map& map = inst().lds_map<dim>();
 
//  search for identifier
  typename Map::const_iterator iter = map.find(id);
  if(iter == map.end() || (iter->second)[roid].invalid())
  {
  //  try to create the set
    if(bCreate){
      create_dof_set(roid, id);
      return get_dof_ptr<dim>(roid, id, false);
    }
    return SPNULL;
  }
 
//  return shape function set
  return (iter->second)[roid];
}
 
template <int dim>
const DimLocalDoFSet<dim>&
LocalFiniteElementProvider::
get_dofs(ReferenceObjectID roid, const LFEID& id, bool bCreate)
{
  ConstSmartPtr<DimLocalDoFSet<dim> > ptr =
      get_dof_ptr<dim>(roid, id, bCreate);
 
  if(ptr.valid()) return *ptr;
  else
    UG_THROW("LocalFiniteElementProvider: Local DoF Set not "
         "found for "<<roid<<" (world dim: "<<dim<<") and type = "<<id);
}
 
}
#endif /* __H__UG__LIB_DISC__LOCAL_FINITE_ELEMENT__LOCAL_FINITE_ELEMENT_PROVIDER_IMPL__ */