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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 #ifndef LIBMESH_CELL_INF_H 00021 #define LIBMESH_CELL_INF_H 00022 00023 #include "libmesh/libmesh_config.h" 00024 00025 #ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS 00026 00027 // Local includes 00028 #include "libmesh/elem.h" 00029 00030 namespace libMesh 00031 { 00032 00033 00034 00035 00041 class InfCell : public Elem 00042 { 00043 public: 00044 00048 InfCell (const unsigned int nn, 00049 const unsigned int ns, 00050 Elem* p, 00051 Elem** elemlinkdata, 00052 Node** nodelinkdata) : 00053 Elem (nn, ns, p, elemlinkdata, nodelinkdata) 00054 {} 00055 00059 unsigned int dim () const { return 3; } 00060 00065 bool infinite () const { return true; } 00066 00070 Point origin () const; 00071 00072 }; 00073 00074 00075 // ------------------------------------------------------------ 00076 // InfCell inline functions 00077 inline 00078 Point InfCell::origin () const 00079 { 00080 return ( this->point(0)*2 - this->point( this->n_vertices()/2 ) ); 00081 } 00082 00083 00084 } // namespace libMesh 00085 00086 00087 #endif // ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS 00088 00089 #endif // LIBMESH_CELL_INF_H