SALOME - SMESH
StdMeshers_Distribution.hxx
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1 // Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
2 //
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
5 //
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
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14 // Lesser General Public License for more details.
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19 //
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
21 //
22 // SMESH StdMeshers : implementaion of point distribution algorithm
23 // File : StdMeshers_Distribution.hxx
24 // Author : Alexandre SOLOVYOV
25 // Module : SMESH
26 // $Header$
27 //
28 #ifndef _STD_MESHERS_DISTRIBUTION_HXX_
29 #define _STD_MESHERS_DISTRIBUTION_HXX_
30 
31 #include "SMESH_StdMeshers.hxx"
32 
33 #include <vector>
34 #include <math_Function.hxx>
35 #include <ExprIntrp_GenExp.hxx>
36 #include <Expr_Array1OfNamedUnknown.hxx>
37 #include <TColStd_Array1OfReal.hxx>
38 
39 
41 {
42 public:
43  Function( const int );
44  virtual ~Function();
45  virtual bool value( const double, double& ) const;
46  virtual double integral( const double, const double ) const = 0;
47 
48 private:
49  int myConv;
50 };
51 
53 {
54 public:
55  FunctionIntegral( const Function*, const double );
56  virtual ~FunctionIntegral();
57  virtual bool value( const double, double& ) const;
58  virtual double integral( const double, const double ) const;
59 
60 private:
62  double myStart;
63 };
64 
66 {
67 public:
68  FunctionTable( const std::vector<double>&, const int );
69  virtual ~FunctionTable();
70  virtual bool value( const double, double& ) const;
71  virtual double integral( const double, const double ) const;
72 
73 private:
74  bool findBounds( const double, int&, int& ) const;
75 
76  //integral from x[i] to x[i+1]
77  double integral( const int i ) const;
78 
79  //integral from x[i] to x[i]+d
80  //warning: function is presented as linear on interaval from x[i] to x[i]+d,
81  // for correct result d must be >=0 and <=x[i+1]-x[i]
82  double integral( const int i, const double d ) const;
83 
84 private:
85  std::vector<double> myData;
86 };
87 
89 {
90 public:
91  FunctionExpr( const char*, const int );
92  virtual ~FunctionExpr();
93  virtual Standard_Boolean Value( const Standard_Real, Standard_Real& );
94  virtual bool value( const double, double& ) const;
95  virtual double integral( const double, const double ) const;
96 
97 private:
98  Handle(ExprIntrp_GenExp) myExpr;
99  Expr_Array1OfNamedUnknown myVars;
100  TColStd_Array1OfReal myValues;
101 };
102 
104 bool buildDistribution( const Function& f,
105  const double start, const double end,
106  const int nbSeg,
107  std::vector<double>& data,
108  const double eps );
109 
111 bool buildDistribution( const TCollection_AsciiString& f, const int conv, const double start, const double end,
112  const int nbSeg, std::vector<double>& data, const double eps );
114 bool buildDistribution( const std::vector<double>& f, const int conv, const double start, const double end,
115  const int nbSeg, std::vector<double>& data, const double eps );
116 
117 #endif
std::vector< double > myData
bool buildDistribution(const Function &f, const double start, const double end, const int nbSeg, std::vector< double > &data, const double eps)
virtual bool value(const double, double &) const
#define STDMESHERS_EXPORT
TColStd_Array1OfReal myValues
virtual double integral(const double, const double) const =0
Expr_Array1OfNamedUnknown myVars