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quadrature_simpson_1D.C
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00001 // The libMesh Finite Element Library.
00002 // Copyright (C) 2002-2014 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
00003 
00004 // This library is free software; you can redistribute it and/or
00005 // modify it under the terms of the GNU Lesser General Public
00006 // License as published by the Free Software Foundation; either
00007 // version 2.1 of the License, or (at your option) any later version.
00008 
00009 // This library is distributed in the hope that it will be useful,
00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012 // Lesser General Public License for more details.
00013 
00014 // You should have received a copy of the GNU Lesser General Public
00015 // License along with this library; if not, write to the Free Software
00016 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017 
00018 
00019 
00020 // Local includes
00021 #include "libmesh/quadrature_simpson.h"
00022 
00023 namespace libMesh
00024 {
00025 
00026 
00027 
00028 void QSimpson::init_1D(const ElemType,
00029                        unsigned int)
00030 {
00031   //----------------------------------------------------------------------
00032   // 1D quadrature rules
00033   _points.resize(3);
00034   _weights.resize(3);
00035 
00036   _points[0](0) = -1.;
00037   _points[1](0) =  0.;
00038   _points[2](0) =  1.;
00039 
00040   _weights[0] = 0.333333333333333333333333333333;
00041   _weights[1] = 1.333333333333333333333333333333;
00042   _weights[2] = 0.333333333333333333333333333333;
00043 
00044   return;
00045 }
00046 
00047 } // namespace libMesh