quadrilateral.cpp

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// Copyright (c) 2010, Lawrence Livermore National Security, LLC. Produced at
// the Lawrence Livermore National Laboratory. LLNL-CODE-443211. All Rights
// reserved. See file COPYRIGHT for details.
//
// This file is part of the MFEM library. For more information and source code
// availability see http://mfem.googlecode.com.
//
// MFEM 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) version 2.1 dated February 1999.


#include "mesh_headers.hpp"

const int Quadrilateral::edges[4][2] =
{{0, 1}, {1, 2}, {2, 3}, {3, 0}};

Quadrilateral::Quadrilateral( const int *ind, int attr )
   : Element(Geometry::SQUARE)
{
   attribute = attr;
   for (int i=0; i<4; i++)
      indices[i] = ind[i];
}

Quadrilateral::Quadrilateral( int ind1, int ind2, int ind3, int ind4,
                              int attr ) : Element(Geometry::SQUARE) {
   attribute  = attr;
   indices[0] = ind1;
   indices[1] = ind2;
   indices[2] = ind3;
   indices[3] = ind4;
}

void Quadrilateral::SetVertices(const int *ind){
   for(int i=0; i<4; i++)
      indices[i] = ind[i];
}

void Quadrilateral::GetVertices( Array<int> &v ) const {
   v.SetSize( 4 );
   for (int i=0; i<4; i++)
      v[i] = indices[i];
}

BiLinear2DFiniteElement QuadrilateralFE;