edge_inf_edge2.c

一个用来实现偏微分方程中网格的计算库

// $Id: edge_inf_edge2.C 2789 2008-04-13 02:24:40Z roystgnr $

// The libMesh Finite Element Library.
// Copyright (C) 2002-2007  Benjamin S. Kirk, John W. Peterson
  
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
  
// This library 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.
  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



// Local includes
#include "libmesh_config.h"
#ifdef ENABLE_INFINITE_ELEMENTS

#include "edge_inf_edge2.h"


// ------------------------------------------------------------
// InfEdge2 class member functions

bool InfEdge2::is_vertex(const unsigned int i) const
{
  if (i)
    return false;
  return true;
}

bool InfEdge2::is_edge(const unsigned int i) const
{
  if (i)
    return true;
  return false;
}

bool InfEdge2::is_face(const unsigned int) const
{
  return false;
}

bool InfEdge2::is_node_on_side(const unsigned int n,
			       const unsigned int s) const
{
  libmesh_assert(s < 1);
  return (s == n);
}

bool InfEdge2::is_node_on_edge(const unsigned int,
			       const unsigned int e) const
{
  libmesh_assert(e == 0);
  return true;
}

void InfEdge2::connectivity(const unsigned int se,
			    const IOPackage iop,
			    std::vector<unsigned int>& conn) const
{
  libmesh_assert (se == 0);
  libmesh_assert (se < this->n_sub_elem());
  libmesh_assert (iop != INVALID_IO_PACKAGE);

  conn.resize(2);
  
  switch (iop)
    {
    case TECPLOT:
      {
	conn[0] = this->node(0)+1;
	conn[1] = this->node(1)+1;
	return;
      }

    case VTK:
      {
	conn[0] = this->node(0);
	conn[1] = this->node(1);
	return;
      }

    default:
      libmesh_error();
    }

  libmesh_error();
}


#endif