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FilterThresholdMin.h
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File FilterThresholdMin.h
4 //
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7 // The MIT License
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9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
11 // Computing and Imaging Institute, University of Utah (USA).
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31 //
32 // Description: Outputs time when solution first drops below a threshold value.
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
36 #ifndef NEKTAR_SOLVERUTILS_FILTERS_FILTERTHRESHOLDMIN_H
37 #define NEKTAR_SOLVERUTILS_FILTERS_FILTERTHRESHOLDMIN_H
38 
40 
41 namespace Nektar
42 {
43 namespace SolverUtils
44 {
45 
46 class FilterThresholdMin : public Filter
47 {
48 public:
50 
51  /// Creates an instance of this class
54  const std::map<std::string, std::string> &pParams)
55  {
56  FilterSharedPtr p =
58  pSession, pParams);
59  return p;
60  }
61 
62  /// Name of the class
63  static std::string className;
64 
67  const std::map<std::string, std::string> &pParams);
69 
70 protected:
71  /// Initialises the filter.
72  SOLVER_UTILS_EXPORT virtual void v_Initialise(
73  const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
74  const NekDouble &time);
75  /// For each point in domain test if solution is below threshold.
76  SOLVER_UTILS_EXPORT virtual void v_Update(
77  const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
78  const NekDouble &time);
79  /// Finalise the filter and write out data.
80  SOLVER_UTILS_EXPORT virtual void v_Finalise(
81  const Array<OneD, const MultiRegions::ExpListSharedPtr> &pFields,
82  const NekDouble &time);
83  /// Indicate that this filter is time dependent.
85 
86 private:
87  /// Storage for recording when each point in domain drops below threshold.
88  Array<OneD, NekDouble> m_threshold;
89  /// Time at which to start recording.
91  /// Value of threshold.
93  /// Initial value of storage.
95  /// File into which to write output data.
96  std::string m_outputFile;
97  /// FieldIO object for writing data.
99 };
100 
101 }
102 }
103 
104 #endif /* FILTERTHRESHOLDMAX_H_ */