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Singletons for each reference element type.
This patch implements singleton objects for each reference element type. At presenent they are read from our "reference_elements/" files, but that does not scale. My next attempt will be to embed those definitions automatically through static stringstream objects. This is an incrimental feature to support the following usage: Elem *phys_elem; Elem const * ref_elem = phys_elem->reference_elem(); where phys_elem is a typical element and ref_elem is its reference element in parametric coordinates.
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| // The libMesh Finite Element Library. | ||
| // Copyright (C) 2002-2013 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner | ||
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| // This library 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; either | ||
| // version 2.1 of the License, or (at your option) any later version. | ||
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| // This library is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| // Lesser General Public License for more details. | ||
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| // You should have received a copy of the GNU Lesser General Public | ||
| // License along with this library; if not, write to the Free Software | ||
| // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
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| #ifndef LIBMESH_REFERENCE_ELEM_H | ||
| #define LIBMESH_REFERENCE_ELEM_H | ||
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| // Local includes | ||
| #include "libmesh/libmesh_common.h" | ||
| #include "libmesh/enum_elem_type.h" | ||
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| // C++ includes | ||
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| namespace libMesh | ||
| { | ||
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| // forward declarations | ||
| class Elem; | ||
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| /** | ||
| * This namespace implements singleton reference elements for each | ||
| * fundamental element type supported by \p libMesh. | ||
| * | ||
| * \author Benjamin S. Kirk, 2013. | ||
| */ | ||
| namespace ReferenceElem | ||
| { | ||
| /** | ||
| * @returns a constant reference to the reference element of | ||
| * the user-requested type. | ||
| */ | ||
| Elem const* get (const ElemType Type); | ||
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| /** | ||
| * Cleans up static singleton data. | ||
| */ | ||
| void clear(); | ||
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| } // namespace ReferenceElem | ||
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| } // namespace libMesh | ||
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| #endif // LIBMESH_REFERENCE_ELEM_H |
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