1 // Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // SMESH StdMeshers : implementation of point distribution algorithm
24 // File : StdMeshers_Distribution.hxx
25 // Author : Alexandre SOLOVYOV
29 #ifndef _STD_MESHERS_DISTRIBUTION_HXX_
30 #define _STD_MESHERS_DISTRIBUTION_HXX_
32 #include "SMESH_StdMeshers.hxx"
35 #include <math_Function.hxx>
36 #include <ExprIntrp_GenExp.hxx>
37 #include <Expr_Array1OfNamedUnknown.hxx>
38 #include <TColStd_Array1OfReal.hxx>
40 #include <smIdType.hxx>
44 class STDMESHERS_EXPORT Function
47 Function( const int );
49 virtual bool value( const double, double& ) const;
50 virtual double integral( const double, const double ) const = 0;
56 class STDMESHERS_EXPORT FunctionIntegral : public Function
59 FunctionIntegral( const Function*, const double );
60 virtual ~FunctionIntegral();
61 virtual bool value( const double, double& ) const;
62 virtual double integral( const double, const double ) const;
69 class STDMESHERS_EXPORT FunctionTable : public Function
72 FunctionTable( const std::vector<double>&, const int );
73 virtual ~FunctionTable();
74 virtual bool value( const double, double& ) const;
75 virtual double integral( const double, const double ) const;
78 bool findBounds( const double, int&, int& ) const;
80 //integral from x[i] to x[i+1]
81 double integral( const int i ) const;
83 //integral from x[i] to x[i]+d
84 //warning: function is presented as linear on interaval from x[i] to x[i]+d,
85 // for correct result d must be >=0 and <=x[i+1]-x[i]
86 double integral( const int i, const double d ) const;
89 std::vector<double> myData;
92 class STDMESHERS_EXPORT FunctionExpr : public Function, public math_Function
95 FunctionExpr( const char*, const int );
96 virtual ~FunctionExpr();
97 virtual Standard_Boolean Value( const Standard_Real, Standard_Real& );
98 virtual bool value( const double, double& ) const;
99 virtual double integral( const double, const double ) const;
102 Handle(ExprIntrp_GenExp) myExpr;
103 Expr_Array1OfNamedUnknown myVars;
104 TColStd_Array1OfReal myValues;
108 bool buildDistribution( const Function& f,
109 const double start, const double end,
110 const smIdType nbSeg,
111 std::vector<double>& data,
115 bool buildDistribution( const TCollection_AsciiString& f, const int conv, const double start, const double end,
116 const smIdType nbSeg, std::vector<double>& data, const double eps );
118 bool buildDistribution( const std::vector<double>& f, const int conv, const double start, const double end,
119 const smIdType nbSeg, std::vector<double>& data, const double eps );