xda_tet_mesh.h

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// LIC// ====================================================================
// LIC// This file forms part of oomph-lib, the object-oriented,
// LIC// multi-physics finite-element library, available
// LIC// at http://www.oomph-lib.org.
// LIC//
// LIC// Copyright (C) 2006-2025 Matthias Heil and Andrew Hazel
// LIC//
// LIC// This library is free software; you can redistribute it and/or
// LIC// modify it under the terms of the GNU Lesser General Public
// LIC// License as published by the Free Software Foundation; either
// LIC// version 2.1 of the License, or (at your option) any later version.
// LIC//
// LIC// This library is distributed in the hope that it will be useful,
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// LIC// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// LIC// Lesser General Public License for more details.
// LIC//
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// LIC// The authors may be contacted at oomph-lib@maths.man.ac.uk.
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// LIC//====================================================================
#ifndef OOMPH_XDA_TET_MESH_HEADER
#define OOMPH_XDA_TET_MESH_HEADER
 
// Config header
#ifdef HAVE_CONFIG_H
#include <oomph-lib-config.h>
#endif
 
#ifdef OOMPH_HAS_MPI
// mpi headers
#include "mpi.h"
#endif
 
#include <string>
#include <iterator>
#include <algorithm>
 
#include "generic/mesh.h"
#include "generic/tet_mesh.h"
 
namespace oomph
{
  //========================================================================
  /// Tet mesh made of quadratic (ten node) tets built from xda input file.
  //========================================================================
  template<class ELEMENT>
  class XdaTetMesh : public virtual TetMeshBase
  {
  public:
    /// Constructor: Pass name of xda file. Note that
    /// all boundary elements get their own ID -- this is required for
    /// FSI problems. In this case; the vector containing the oomph-lib
    /// boundary IDs of all oomph-lib boundaries that collectively form
    /// a given boundary as specified in the xda input file can be
    /// obtained from the access function oomph_lib_boundary_ids(...).
    /// Timestepper defaults to steady pseudo-timestepper.
    XdaTetMesh(const std::string xda_file_name,
               TimeStepper* time_stepper_pt = &Mesh::Default_TimeStepper);
 
    /// Setup boundary coordinate on boundary b while is
    /// temporarily flattened to simplex faces. Boundary coordinates are the
    /// x-y coordinates in the plane of that boundary with the
    /// x-axis along the line from the (lexicographically)
    /// "lower left" to the "upper right" node. The y axis
    /// is obtained by taking the cross-product of the positive
    /// x direction with the outer unit normal computed by
    /// the face elements (or its negative if switch_normal is set
    /// to true).
    void setup_boundary_coordinates(const unsigned& b,
                                    const bool& switch_normal)
    {
      std::ofstream outfile;
      setup_boundary_coordinates(b, switch_normal, outfile);
    }
 
    /// Setup boundary coordinate on boundary b while is
    /// temporarily flattened to simplex faces. Boundary coordinates are the
    /// x-y coordinates in the plane of that boundary with the
    /// x-axis along the line from the (lexicographically)
    /// "lower left" to the "upper right" node. The y axis
    /// is obtained by taking the cross-product of the positive
    /// x direction with the outer unit normal computed by
    /// the face elements (or its negative if switch_normal is set
    /// to true). Doc faces in output file.
    void setup_boundary_coordinates(const unsigned& b,
                                    const bool& switch_normal,
                                    std::ofstream& outfile);
 
    /// Access function to the number of distinct boundaries specified
    /// in the original xda enumeration.
    unsigned nxda_boundary()
    {
      return Boundary_id.size();
    }
 
    /// Access functions to the Vector of oomph-lib boundary ids
    /// that make up boundary b in the original xda enumeration
    Vector<unsigned> oomph_lib_boundary_ids(const unsigned& xda_boundary_id)
    {
      return Boundary_id[xda_boundary_id];
    }
 
  private:
    /// Vector of vectors containing the boundary IDs of
    /// the overall boundary specified in the xda file.
    Vector<Vector<unsigned>> Boundary_id;
  };
 
 
  ////////////////////////////////////////////////////////////////////
  ////////////////////////////////////////////////////////////////////
  ////////////////////////////////////////////////////////////////////
 
  //==========================================================================
  /// Xda-based tet mesh upgraded to become a solid mesh.
  //=========================================================================
  template<class ELEMENT>
  class SolidXdaTetMesh : public virtual XdaTetMesh<ELEMENT>,
                          public virtual SolidMesh
  {
  public:
    /// Constructor. Boundary coordinates are setup
    /// automatically.
    SolidXdaTetMesh(const std::string xda_file_name,
                    TimeStepper* time_stepper_pt = &Mesh::Default_TimeStepper)
      : XdaTetMesh<ELEMENT>(xda_file_name, time_stepper_pt)
    {
      // Assign the Lagrangian coordinates
      set_lagrangian_nodal_coordinates();
    }
 
    /// Empty Destructor
    virtual ~SolidXdaTetMesh() {}
  };
 
 
  ////////////////////////////////////////////////////////////////////
  ////////////////////////////////////////////////////////////////////
  ////////////////////////////////////////////////////////////////////
 
} // namespace oomph
 
#include "xda_tet_mesh.template.cc"
#endif