libMesh
cell_inf.h
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1 // The libMesh Finite Element Library.
2 // Copyright (C) 2002-2017 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
3 
4 // This library is free software; you can redistribute it and/or
5 // modify it under the terms of the GNU Lesser General Public
6 // License as published by the Free Software Foundation; either
7 // version 2.1 of the License, or (at your option) any later version.
8 
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // Lesser General Public License for more details.
13 
14 // You should have received a copy of the GNU Lesser General Public
15 // License along with this library; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 
18 
19 
20 #ifndef LIBMESH_CELL_INF_H
21 #define LIBMESH_CELL_INF_H
22 
23 #include "libmesh/libmesh_config.h"
24 
25 #ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS
26 
27 // Local includes
28 #include "libmesh/elem.h"
29 
30 namespace libMesh
31 {
32 
42 class InfCell : public Elem
43 {
44 public:
45 
49  InfCell (const unsigned int nn,
50  const unsigned int ns,
51  Elem * p,
52  Elem ** elemlinkdata,
53  Node ** nodelinkdata) :
54  Elem (nn, ns, p, elemlinkdata, nodelinkdata)
55  {}
56 
60  virtual unsigned int dim () const libmesh_override { return 3; }
61 
66  virtual bool infinite () const libmesh_override { return true; }
67 
71  virtual Point origin () const libmesh_override
72  {
73  return (this->point(0)*2 - this->point(this->n_vertices()/2));
74  }
75 };
76 
77 } // namespace libMesh
78 
79 #endif // ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS
80 
81 #endif // LIBMESH_CELL_INF_H
A Node is like a Point, but with more information.
Definition: node.h:52
virtual bool infinite() const libmesh_override
Definition: cell_inf.h:66
InfCell(const unsigned int nn, const unsigned int ns, Elem *p, Elem **elemlinkdata, Node **nodelinkdata)
Constructor.
Definition: cell_inf.h:49
This is the base class from which all geometric element types are derived.
Definition: elem.h:89
virtual Point origin() const libmesh_override
Definition: cell_inf.h:71
The libMesh namespace provides an interface to certain functionality in the library.
The InfCell is an abstract element type that lives in three dimensions.
Definition: cell_inf.h:42
virtual unsigned int dim() const libmesh_override
Definition: cell_inf.h:60
const Point & point(const unsigned int i) const
Definition: elem.h:1809
virtual unsigned int n_vertices() const =0
A Point defines a location in LIBMESH_DIM dimensional Real space.
Definition: point.h:38