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00001 // Copyright (C) 2003 Johan Hoffman and Anders Logg. 00002 // Licensed under the GNU GPL Version 2. 00003 00004 #ifndef __TETRAHEDRON_VERTEX_QUADRATURE_H 00005 #define __TETRAHEDRON_VERTEX_QUADRATURE_H 00006 00007 #include <dolfin/Quadrature.h> 00008 00009 namespace dolfin { 00010 00012 class TetrahedronVertexQuadrature : public Quadrature { 00013 public: 00014 00015 TetrahedronVertexQuadrature() : Quadrature(4) { 00016 00017 // Volume of tetrahedron 00018 m = 1.0 / 6.0; 00019 00020 // Quadrature points 00021 points[0] = Point(0.0, 0.0, 0.0); 00022 points[1] = Point(1.0, 0.0, 0.0); 00023 points[2] = Point(0.0, 1.0, 0.0); 00024 points[3] = Point(0.0, 0.0, 1.0); 00025 00026 // Quadrature weights 00027 weights[0] = m / 4.0; 00028 weights[1] = m / 4.0; 00029 weights[2] = m / 4.0; 00030 weights[3] = m / 4.0; 00031 00032 } 00033 00034 void show() const {}; 00035 00036 }; 00037 00038 } 00039 00040 #endif
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