fv_output.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__SPATIAL_DISC__DISC_HELPER__FINITE_VOLUME_OUTPUT__
#define __H__UG__LIB_DISC__SPATIAL_DISC__DISC_HELPER__FINITE_VOLUME_OUTPUT__
 
// other ug4 modules
#include "common/common.h"
#include "lib_disc/domain_util.h"
 
// finite volume geometry
#include "fv1_geom.h"
#include "hfv1_geom.h"
 
namespace ug{
 
// ConstructGridOfSCVF
 
template <typename TElem, template <class, int> class TFVGeom, int TWorldDim>
void CreateSCVF(const TElem& elem, TFVGeom<TElem, TWorldDim>& geo, ISubsetHandler& shOut,
        Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPosOut)
{
  // extract dimensions
  static const int refDim = TFVGeom<TElem, TWorldDim>::dim;
 
  // extract grid
  Grid& grid = *shOut.grid();
 
  // tmp vector for vertices
  std::vector<Vertex*> vVert;
 
  // loop all scv of the element
  for(size_t i = 0; i < geo.num_scvf(); ++i)
  {
    const typename TFVGeom<TElem, TWorldDim>::SCVF& scvf = geo.scvf(i);
 
    // clear vertices
    vVert.clear();
 
    // loop corners of scv
    for(size_t co = 0; co < scvf.num_corners(); ++co)
    {
      //  create a new vertex
        RegularVertex* vrt = *(grid.create<RegularVertex>());
        vVert.push_back(vrt);
 
      //  set the coordinates
        aaPosOut[vrt] = scvf.global_corner(co);
    }
 
    // edge
    if(refDim == 2)
    {
      if (scvf.num_corners() == 2) {
        grid.template create<RegularEdge>(EdgeDescriptor(vVert[0], vVert[1]));
      }
      else {
        UG_THROW("SCVF has a number of nodes, that is not drawable.");
      }
    }
    // face
    else if(refDim == 3)
    {
      if (scvf.num_corners() == 4) {
        grid.template create<Quadrilateral>(QuadrilateralDescriptor(vVert[0], vVert[1],
                                      vVert[2], vVert[3]));
      }
      else if (scvf.num_corners() == 3) {
        grid.template create<Triangle>(TriangleDescriptor(vVert[0], vVert[1],
                                      vVert[2]));
      }
      else{
        UG_THROW("SCVF has a number of nodes, that is not drawable.");
      }
    }
  }
}
 
template <typename TElem, template <class, int> class TFVGeom, int TWorldDim>
void ConstructGridOfSCVF(ISubsetHandler& shOut,
                         const SurfaceView& surfView,
                         const Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPos,
                         Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPosOut,
                         int si)
{
  // Create Geometry
  TFVGeom<TElem, TWorldDim> geo;
 
  // iterators for primary grid
  typename SurfaceView::traits<TElem>::const_iterator iter, iterBegin, iterEnd;
  iterBegin = surfView.begin<TElem>(GridLevel(GridLevel::TOP, GridLevel::SURFACE, false), SurfaceView::SURFACE);
  iterEnd = surfView.end<TElem>(GridLevel(GridLevel::TOP, GridLevel::SURFACE, false), SurfaceView::SURFACE);
 
  // corners of element
  std::vector<MathVector<TWorldDim> > vCornerCoords;
 
  // iterate over primary grid
  for(iter = iterBegin; iter != iterEnd; ++iter)
  {
    // get element
    TElem* elem = *iter;
 
    // get corner coordinates
    CollectCornerCoordinates(vCornerCoords, *elem, aaPos);
 
    // update finite volume geometry
    geo.update(elem, &vCornerCoords[0], &(*surfView.subset_handler()));
 
    // Create dual grid
    CreateSCVF<TElem, TFVGeom, TWorldDim>(*elem, geo, shOut, aaPosOut);
  }
}
 
 
template <template <class, int> class TFVGeom, int TWorldDim>
struct ConstructGridOfSCVFWrapper{};
 
template <template <class, int> class TFVGeom>
struct ConstructGridOfSCVFWrapper<TFVGeom, 1>
{
  static void apply(ISubsetHandler& shOut, const SurfaceView& surfView,
                    const Grid::VertexAttachmentAccessor<Attachment<MathVector<1> > >& aaPos,
                    Grid::VertexAttachmentAccessor<Attachment<MathVector<1> > >& aaPosOut,
                    int si, int siDim)
  {
    switch(siDim)
    {
      case 1: ConstructGridOfSCVF<RegularEdge, TFVGeom, 1>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      default: UG_THROW("CreateDualGrid: Dimension " << siDim << " not supported. World dimension is " << 1 <<".");
    }
  }
};
 
template <template <class, int> class TFVGeom>
struct ConstructGridOfSCVFWrapper<TFVGeom, 2>
{
  static void apply(ISubsetHandler& shOut, const SurfaceView& surfView,
        const Grid::VertexAttachmentAccessor<Attachment<MathVector<2> > >& aaPos,
        Grid::VertexAttachmentAccessor<Attachment<MathVector<2> > >& aaPosOut,
        int si, int siDim)
  {
    switch(siDim)
    {
      case 1: ConstructGridOfSCVF<RegularEdge, TFVGeom, 2>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      case 2: ConstructGridOfSCVF<Triangle, TFVGeom, 2>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCVF<Quadrilateral, TFVGeom, 2>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      default: UG_THROW("CreateDualGrid: Dimension " << siDim << " not supported. World dimension is " << 2);
    }
  }
};
 
template <template <class, int> class TFVGeom>
struct ConstructGridOfSCVFWrapper<TFVGeom, 3>
{
  static void apply(ISubsetHandler& shOut, const SurfaceView& surfView,
        const Grid::VertexAttachmentAccessor<Attachment<MathVector<3> > >& aaPos,
        Grid::VertexAttachmentAccessor<Attachment<MathVector<3> > >& aaPosOut,
        int si, int siDim)
  {
    switch(siDim)
    {
      case 1: ConstructGridOfSCVF<RegularEdge, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      case 2: ConstructGridOfSCVF<Triangle, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCVF<Quadrilateral, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      case 3: ConstructGridOfSCVF<Tetrahedron, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCVF<Hexahedron, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCVF<Prism, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCVF<Pyramid, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCVF<Octahedron, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      default: UG_THROW("CreateDualGrid: Dimension " << siDim << " not supported. World dimension is " << 3);
    }
  }
};
 
template <template <class, int> class TFVGeom, int TWorldDim>
void ConstructGridOfSCVF(ISubsetHandler& shOut, const SurfaceView& surfView,
            const Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPos,
            Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPosOut,
            int si, int siDim)
{
  ConstructGridOfSCVFWrapper<TFVGeom, TWorldDim>::apply(shOut, surfView, aaPos, aaPosOut, si, siDim);
}
 
 
// ConstructGridOfSCV
 
template <typename TElem, template <class, int> class TFVGeom, int TWorldDim>
void CreateSCV(const TElem& elem, TFVGeom<TElem, TWorldDim>& geo, ISubsetHandler& shOut,
        Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPosOut)
{
  // extract dimensions
  static const int refDim = TFVGeom<TElem, TWorldDim>::dim;
 
  // extract grid
  Grid& grid = *shOut.grid();
 
  // tmp vector for vertices
  std::vector<Vertex*> vVert;
 
  // loop all scv of the element
  for(size_t i = 0; i < geo.num_scv(); ++i)
  {
    const typename TFVGeom<TElem, TWorldDim>::SCV& scv = geo.scv(i);
 
    // clear vertices
    vVert.clear();
 
    // loop corners of scv
    for(size_t co = 0; co < scv.num_corners(); ++co)
    {
      //  create a new vertex
        RegularVertex* vrt = *(grid.create<RegularVertex>());
        vVert.push_back(vrt);
 
      //  set the coordinates
        aaPosOut[vrt] = scv.global_corner(co);
 
      //  if co == 0, it is a vertex of the primary grid
      //  We assign all of those vertices to subset 0
      //  The other vertices remain in subset -1
        if(co == 0) shOut.assign_subset(vrt, 0);
        else shOut.assign_subset(vrt, -1);
 
    }
 
    // edge
    if(refDim == 1)
    {
      grid.template create<RegularEdge>(EdgeDescriptor(vVert[0], vVert[1]));
    }
    // face
    else if(refDim == 2)
    {
      if (scv.num_corners() == 4) {
        grid.template create<Quadrilateral>(QuadrilateralDescriptor(vVert[0], vVert[1],
                                    vVert[2], vVert[3]));
      }
      else {
        UG_THROW("SCV has a number of nodes, that is not drawable.");
      }
    }
    // volume
    else if(refDim == 3)
    {
      if (scv.num_corners() == 8) {
        grid.template create<Hexahedron>(HexahedronDescriptor(  vVert[0], vVert[1], vVert[2], vVert[3],
                                    vVert[4], vVert[5], vVert[6], vVert[7]));
      }
      else if (scv.num_corners() == 4) {
        grid.template create<Tetrahedron>(TetrahedronDescriptor(  vVert[0], vVert[1], vVert[2], vVert[3]));
      }
      else {
        UG_THROW("SCV has a number of nodes, that is not drawable.");
      }
    }
  }
}
 
template <typename TElem, template <class, int> class TFVGeom, int TWorldDim>
void ConstructGridOfSCV(ISubsetHandler& shOut, const SurfaceView& surfView,
                        const Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPos,
                        Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPosOut,
                        int si)
{
  // Create Geometry
  TFVGeom<TElem, TWorldDim> geo;
 
  // iterators for primary grid
  typename SurfaceView::traits<TElem>::const_iterator iter, iterBegin, iterEnd;
  iterBegin = surfView.begin<TElem>(GridLevel(GridLevel::TOP, GridLevel::SURFACE, false), SurfaceView::SURFACE);
  iterEnd = surfView.end<TElem>(GridLevel(GridLevel::TOP, GridLevel::SURFACE, false), SurfaceView::SURFACE);
 
  // corners of element
  std::vector<MathVector<TWorldDim> > vCornerCoords;
 
  // iterate over primary grid
  for(iter = iterBegin; iter != iterEnd; ++iter)
  {
    // get element
    TElem* elem = *iter;
 
    // get corner coordinates
    CollectCornerCoordinates(vCornerCoords, *elem, aaPos);
 
    // update finite volume geometry
    geo.update(elem, &vCornerCoords[0], &(*surfView.subset_handler()));
 
    // Create dual grid
    CreateSCV<TElem, TFVGeom, TWorldDim>(*elem, geo, shOut, aaPosOut);
  }
}
 
 
template <template <class, int> class TFVGeom, int TWorldDim>
struct ConstructGridOfSCVWrapper{};
 
template <template <class TElem, int TWorldDim> class TFVGeom>
struct ConstructGridOfSCVWrapper<TFVGeom, 1>
{
  static void apply(ISubsetHandler& shOut, const SurfaceView& surfView,
                    const Grid::VertexAttachmentAccessor<Attachment<MathVector<1> > >& aaPos,
                    Grid::VertexAttachmentAccessor<Attachment<MathVector<1> > >& aaPosOut,
                    int si, int siDim)
  {
    switch(siDim)
    {
      case 1: ConstructGridOfSCV<RegularEdge, TFVGeom, 1>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      default: UG_THROW("CreateDualGrid: Dimension " << siDim << " not supported. World dimension is " << 1);
    }
  }
};
 
template <template <class, int> class TFVGeom>
struct ConstructGridOfSCVWrapper<TFVGeom, 2>
{
  static void apply(ISubsetHandler& shOut, const SurfaceView& surfView,
                    const Grid::VertexAttachmentAccessor<Attachment<MathVector<2> > >& aaPos,
                    Grid::VertexAttachmentAccessor<Attachment<MathVector<2> > >& aaPosOut,
                    int si, int siDim)
  {
    switch(siDim)
    {
      case 1: ConstructGridOfSCV<RegularEdge, TFVGeom, 2>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      case 2: ConstructGridOfSCV<Triangle, TFVGeom, 2>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCV<Quadrilateral, TFVGeom, 2>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      default: UG_THROW("CreateDualGrid: Dimension " << siDim << " not supported. World dimension is " << 2);
    }
  }
};
 
template <template <class, int> class TFVGeom>
struct ConstructGridOfSCVWrapper<TFVGeom, 3>
{
  static void apply(ISubsetHandler& shOut, const SurfaceView& surfView,
                    const Grid::VertexAttachmentAccessor<Attachment<MathVector<3> > >& aaPos,
                    Grid::VertexAttachmentAccessor<Attachment<MathVector<3> > >& aaPosOut,
                    int si, int siDim)
  {
    switch(siDim)
    {
      case 1: ConstructGridOfSCV<RegularEdge, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      case 2: ConstructGridOfSCV<Triangle, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCV<Quadrilateral, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      case 3: ConstructGridOfSCV<Tetrahedron, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCV<Hexahedron, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCV<Prism, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCV<Pyramid, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          ConstructGridOfSCV<Octahedron, TFVGeom, 3>(shOut, surfView, aaPos, aaPosOut, si);
          break;
      default: UG_THROW("CreateDualGrid: Dimension " << siDim << " not supported. World dimension is " << 3);
    }
  }
};
 
template <template <class, int> class TFVGeom, int TWorldDim>
void ConstructGridOfSCV(ISubsetHandler& shOut, const SurfaceView& surfView,
            const Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPos,
            Grid::VertexAttachmentAccessor<Attachment<MathVector<TWorldDim> > >& aaPosOut,
            int si, int siDim)
{
  ConstructGridOfSCVWrapper<TFVGeom, TWorldDim>::apply(shOut, surfView, aaPos, aaPosOut, si, siDim);
}
 
 
// Assignement of Subsets
 
template <typename TElem>
void ColorSubControlVolumeFaces(ISubsetHandler& shOut)
{
  // extract grid
  Grid& grid = *shOut.grid();
 
  // iterators for primary grid
  typename geometry_traits<TElem>::iterator iter, iterBegin, iterEnd;
  iterBegin = grid.begin<TElem>();
  iterEnd = grid.end<TElem>();
 
  // iterate over primary grid
  int si = 0;
  for(iter = iterBegin; iter != iterEnd; ++iter)
  {
    shOut.assign_subset(*iter, si++);
  }
}
 
template <typename TElem>
void ColorSubControlVolume(ISubsetHandler& shOut)
{
  // extract grid
  Grid& grid = *shOut.grid();
 
  // iterators for primary grid
  typename geometry_traits<TElem>::iterator iter, iterBegin, iterEnd;
  iterBegin = grid.begin<TElem>();
  iterEnd = grid.end<TElem>();
 
  // iterate over primary grid
  int si = 0;
  for(iter = iterBegin; iter != iterEnd; ++iter)
  {
    shOut.assign_subset(*iter, si++);
  }
}
 
 
template <int TRefDim>
void ColorControlVolume(ISubsetHandler& shOut)
{
  // extract grid
  Grid& grid = *shOut.grid();
 
  std::vector<Volume*> vVols;
  std::vector<Face*> vFaces;
  std::vector<Edge*> vEdges;
 
  int si = 0;
  for(VertexIterator iter = shOut.grid()->begin<Vertex>();
    iter != shOut.grid()->end<Vertex>(); ++iter, ++si)
  {
    if(shOut.get_subset_index(*iter) != 0) continue;
 
    switch(TRefDim)
    {
    case 1: CollectEdges(vEdges, grid, *iter);
        shOut.assign_subset(vEdges.begin(), vEdges.end(), si);
        break;
    case 2: CollectFaces(vFaces, grid, *iter);
        shOut.assign_subset(vFaces.begin(), vFaces.end(), si);
        break;
    case 3: CollectVolumes(vVols, grid, *iter);
        shOut.assign_subset(vVols.begin(), vVols.end(), si);
        break;
    default: UG_THROW("Dimension " << TRefDim << " is not supported.");
    }
  }
}
 
 
template <template <class, int> class TFVGeom, typename TAAPosition>
void CreateGridOfSubControlVolumes(ISubsetHandler& shOut, TAAPosition& aaPosOut, const ISubsetHandler& sh, const TAAPosition& aaPos, const SurfaceView& surfView, int si = -1)
{
  static const int dim = TAAPosition::ValueType::Size;
 
  // Construct dual domain for scv and given subset
  if(si >= 0)
  {
    const int siDim = DimensionOfSubset(sh, si);
    ConstructGridOfSCV<TFVGeom, dim>(shOut, surfView, aaPos, aaPosOut, si, siDim);
  }
  // if no subset selected, construct dual grid for all subsets with dim == worldDim
  else
  {
    for(si = 0; si < sh.num_subsets(); ++si)
    {
      const int siDim = DimensionOfSubset(sh, si);
      if(siDim != dim) continue;
 
            ConstructGridOfSCV<TFVGeom, dim>(shOut, surfView, aaPos, aaPosOut, si, siDim);
    }
  }
 
  // Let each SubControlVolume be one subset
  switch(dim)
  {
    case 1: ColorSubControlVolume<Edge>(shOut); break;
    case 2: ColorSubControlVolume<Face>(shOut); break;
    case 3: ColorSubControlVolume<Volume>(shOut); break;
    default: UG_THROW("WriteDualGridToFile: Dimension "<<dim<<" not supported.");
  }
}
 
template <template <class, int> class TFVGeom, typename TAAPosition, typename TAPosition>
void CreateGridOfControlVolumes(ISubsetHandler& shOut, TAAPosition& aaPosOut, TAPosition& aPosOut, const ISubsetHandler& sh, const TAAPosition& aaPos, const SurfaceView& surfView, int si = -1)
{
  static const int dim = TAAPosition::ValueType::Size;
 
  // Construct dual domain for scv and given subset
  if(si >= 0)
  {
    const int siDim = DimensionOfSubset(sh, si);
    ConstructGridOfSCV<TFVGeom, dim>(shOut, surfView, aaPos, aaPosOut, si, siDim);
  }
  // if no subset selected, construct dual grid for all subsets with dim == worldDim
  else
  {
    for(si = 0; si < sh.num_subsets(); ++si)
    {
      const int siDim = DimensionOfSubset(sh, si);
      if(siDim != dim) continue;
 
            ConstructGridOfSCV<TFVGeom, dim>(shOut, surfView, aaPos, aaPosOut, si, siDim);
    }
  }
 
  // remove doubles
  RemoveDoubles<dim>(*shOut.grid(),
                     shOut.grid()->begin<Vertex>(), shOut.grid()->end<Vertex>(),
                     aPosOut, 1e-5);
 
  // Let each SubControlVolume be one subset
  switch(dim)
  {
    case 1: ColorControlVolume<1>(shOut); break;
    case 2: ColorControlVolume<2>(shOut); break;
    case 3: ColorControlVolume<3>(shOut); break;
    default: UG_THROW("WriteDualGridToFile: Dimension "<<dim<<" not supported.");
  }
}
 
template <template <class, int> class TFVGeom, typename TAAPosition>
void CreateGridOfSubControlVolumeFaces(ISubsetHandler& shOut, TAAPosition& aaPosOut, const ISubsetHandler& sh, const TAAPosition& aaPos, const SurfaceView& surfView, int si = -1)
{
  static const int dim = TAAPosition::ValueType::Size;
 
  // Construct dual domain for scv and given subset
  if(si >= 0)
  {
    const int siDim = DimensionOfSubset(sh, si);
 
    ConstructGridOfSCVF<TFVGeom, dim>(shOut, surfView, aaPos, aaPosOut, si, siDim);
  }
  // if no subset selected, construct dual grid for all subsets with dim == worldDim
  else
  {
    for(si = 0; si < sh.num_subsets(); ++si)
    {
      const int siDim = DimensionOfSubset(sh, si);
      if(siDim != dim) continue;
 
      ConstructGridOfSCVF<TFVGeom, dim>(shOut, surfView, aaPos, aaPosOut, si, siDim);
    }
  }
 
  // Let each SubControlVolume be one subset
  switch(dim)
  {
    case 1: ColorSubControlVolumeFaces<Vertex>(shOut); break;
    case 2: ColorSubControlVolumeFaces<Edge>(shOut); break;
    case 3: ColorSubControlVolumeFaces<Face>(shOut); break;
    default: UG_THROW("WriteDualGridToFile: Dimension " << dim << " not supported.");
  }
}
 
template <template <class, int> class TFVGeom, typename TDomain>
void CreateSubControlVolumeFaceDomain(TDomain& domOut, const TDomain& domIn, const SurfaceView& surfView, int si = -1)
{
  if(&domOut == &domIn)
    UG_THROW("CreateSubControlVolumeFaceDomain: Domains must be different.");
 
  CreateGridOfSubControlVolumeFaces<TFVGeom, typename TDomain::position_accessor_type>
    ( *domOut.subset_handler(),
      domOut.position_accessor(),
      *domIn.subset_handler(),
      domIn.position_accessor(),
      surfView, si);
}
 
template <template <class, int> class TFVGeom, typename TDomain>
void CreateSubControlVolumeDomain(TDomain& domOut, const TDomain& domIn, const SurfaceView& surfView, int si = -1)
{
  if(&domOut == &domIn)
    UG_THROW("CreateSubControlVolumeDomain: Domains must be different.");
 
  CreateGridOfSubControlVolumes<TFVGeom, typename TDomain::position_accessor_type>
    ( *domOut.subset_handler(),
      domOut.position_accessor(),
      *domIn.subset_handler(),
      domIn.position_accessor(),
      surfView, si);
}
 
template <template <class, int> class TFVGeom, typename TDomain>
void CreateControlVolumeDomain(TDomain& domOut, const TDomain& domIn, const SurfaceView& surfView, int si = -1)
{
  if(&domOut == &domIn)
    UG_THROW("CreateControlVolumeDomain: Domains must be different.");
 
  CreateGridOfControlVolumes<TFVGeom, typename TDomain::position_accessor_type, typename TDomain::position_attachment_type>
    ( *domOut.subset_handler(),
      domOut.position_accessor(),
      domOut.position_attachment(),
      *domIn.subset_handler(),
      domIn.position_accessor(),
      surfView, si);
}
 
} // end namespace ug
 
 
#endif /* __H__UG__LIB_DISC__SPATIAL_DISC__DISC_HELPER__FINITE_VOLUME_OUTPUT__ */