libMesh
discontinuity_measure.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_DISCONTINUITY_MEASURE_H
21 #define LIBMESH_DISCONTINUITY_MEASURE_H
22 
23 // Local Includes
24 #include "libmesh/jump_error_estimator.h"
25 
26 // C++ includes
27 #include <cstddef>
28 #include <string>
29 #include <vector>
30 
31 namespace libMesh
32 {
33 
34 // Forward Declarations
35 class Point;
36 
37 
38 
39 
40 
50 {
51 public:
52 
61  { error_norm = L2; }
62 
67 
71  void attach_essential_bc_function (std::pair<bool,Real> fptr(const System & system,
72  const Point & p,
73  const std::string & var_name));
74 
75  virtual ErrorEstimatorType type() const libmesh_override
76  { return DISCONTINUITY_MEASURE;}
77 
78 protected:
79 
84  virtual void init_context(FEMContext & c) libmesh_override;
85 
90  virtual void internal_side_integration() libmesh_override;
91 
98  virtual bool boundary_side_integration() libmesh_override;
99 
103  std::pair<bool,Real> (* _bc_function) (const System & system,
104  const Point & p,
105  const std::string & var_name);
106 };
107 
108 
109 } // namespace libMesh
110 
111 #endif // LIBMESH_DISCONTINUITY_MEASURE_H
SystemNorm error_norm
When estimating the error in a single system, the error_norm is used to control the scaling and norm ...
This abstract base class implements utility functions for error estimators which are based on integra...
void attach_essential_bc_function(std::pair< bool, Real > fptr(const System &system, const Point &p, const std::string &var_name))
Register a user function to use in computing the essential BCs.
const class libmesh_nullptr_t libmesh_nullptr
The libMesh namespace provides an interface to certain functionality in the library.
This class measures discontinuities between elements for debugging purposes.
Number fptr(const Point &p, const Parameters &, const std::string &libmesh_dbg_var(sys_name), const std::string &unknown_name)
Definition: projection.C:78
virtual ErrorEstimatorType type() const libmesh_override
std::pair< bool, Real >(* _bc_function)(const System &system, const Point &p, const std::string &var_name)
Pointer to function that provides BC information.
This is the base class for classes which contain information related to any physical process that mig...
Definition: system.h:76
This class provides all data required for a physics package (e.g.
Definition: fem_context.h:61
virtual void internal_side_integration() libmesh_override
The function which calculates a normal derivative jump based error term on an internal side...
virtual void init_context(FEMContext &c) libmesh_override
An initialization function, for requesting specific data from the FE objects.
virtual bool boundary_side_integration() libmesh_override
The function which calculates a normal derivative jump based error term on a boundary side...
A Point defines a location in LIBMESH_DIM dimensional Real space.
Definition: point.h:38