FEApp_GaussianQuadrature2.cpp

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00001 // $Id$ 
00002 // $Source$ 
00003 // @HEADER
00004 // ***********************************************************************
00005 // 
00006 //                           Sacado Package
00007 //                 Copyright (2006) Sandia Corporation
00008 // 
00009 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
00010 // the U.S. Government retains certain rights in this software.
00011 // 
00012 // This library is free software; you can redistribute it and/or modify
00013 // it under the terms of the GNU Lesser General Public License as
00014 // published by the Free Software Foundation; either version 2.1 of the
00015 // License, or (at your option) any later version.
00016 //  
00017 // This library is distributed in the hope that it will be useful, but
00018 // WITHOUT ANY WARRANTY; without even the implied warranty of
00019 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00020 // Lesser General Public License for more details.
00021 //  
00022 // You should have received a copy of the GNU Lesser General Public
00023 // License along with this library; if not, write to the Free Software
00024 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00025 // USA
00026 // Questions? Contact David M. Gay (dmgay@sandia.gov) or Eric T. Phipps
00027 // (etphipp@sandia.gov).
00028 // 
00029 // ***********************************************************************
00030 // @HEADER
00031 
00032 #include "FEApp_GaussianQuadrature2.hpp"
00033 #include <cmath> // for sqrt
00034 
00035 FEApp::GaussianQuadrature2::GaussianQuadrature2() :
00036   qp(2),
00037   w(2)
00038 {
00039   qp[0] = -1.0 / std::sqrt(3.0);
00040   qp[1] = -qp[0];
00041 
00042   w[0] = 1.0;
00043   w[1] = 1.0;
00044 }
00045 
00046 FEApp::GaussianQuadrature2::~GaussianQuadrature2() 
00047 {
00048 }
00049 
00050 unsigned int
00051 FEApp::GaussianQuadrature2::numPoints() const
00052 {
00053   return 2;
00054 }
00055 
00056 const std::vector<double>& 
00057 FEApp::GaussianQuadrature2::quadPoints() const
00058 {
00059   return qp;
00060 }
00061 
00062 const std::vector<double>& 
00063 FEApp::GaussianQuadrature2::weights() const
00064 {
00065   return w;
00066 }

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