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119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
// Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// SMESH StdMeshers : implementaion of point distribution algorithm
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// File : StdMeshers_Distribution.hxx
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// Author : Alexandre SOLOVYOV
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// Module : SMESH
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// $Header$
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//
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#ifndef _STD_MESHERS_DISTRIBUTION_HXX_
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#define _STD_MESHERS_DISTRIBUTION_HXX_
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#include "SMESH_StdMeshers.hxx"
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#include <vector>
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#include <math_Function.hxx>
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#include <ExprIntrp_GenExp.hxx>
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#include <Expr_Array1OfNamedUnknown.hxx>
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#include <TColStd_Array1OfReal.hxx>
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class STDMESHERS_EXPORT Function
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{
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public:
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Function( const int );
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virtual ~Function();
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virtual bool value( const double, double& ) const;
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virtual double integral( const double, const double ) const = 0;
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private:
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int myConv;
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};
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class STDMESHERS_EXPORT FunctionIntegral : public Function
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{
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public:
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FunctionIntegral( const Function*, const double );
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virtual ~FunctionIntegral();
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virtual bool value( const double, double& ) const;
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virtual double integral( const double, const double ) const;
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private:
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Function* myFunc;
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double myStart;
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};
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class STDMESHERS_EXPORT FunctionTable : public Function
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{
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public:
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FunctionTable( const std::vector<double>&, const int );
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virtual ~FunctionTable();
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virtual bool value( const double, double& ) const;
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virtual double integral( const double, const double ) const;
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private:
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bool findBounds( const double, int&, int& ) const;
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//integral from x[i] to x[i+1]
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double integral( const int i ) const;
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//integral from x[i] to x[i]+d
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//warning: function is presented as linear on interaval from x[i] to x[i]+d,
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// for correct result d must be >=0 and <=x[i+1]-x[i]
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double integral( const int i, const double d ) const;
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private:
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std::vector<double> myData;
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};
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class STDMESHERS_EXPORT FunctionExpr : public Function, public math_Function
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{
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public:
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FunctionExpr( const char*, const int );
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virtual ~FunctionExpr();
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virtual Standard_Boolean Value( const Standard_Real, Standard_Real& );
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virtual bool value( const double, double& ) const;
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virtual double integral( const double, const double ) const;
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private:
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Handle(ExprIntrp_GenExp) myExpr;
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Expr_Array1OfNamedUnknown myVars;
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TColStd_Array1OfReal myValues;
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};
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STDMESHERS_EXPORT
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bool buildDistribution( const Function& f,
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const double start, const double end,
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const int nbSeg,
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std::vector<double>& data,
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const double eps );
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STDMESHERS_EXPORT
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bool buildDistribution( const TCollection_AsciiString& f, const int conv, const double start, const double end,
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const int nbSeg, std::vector<double>& data, const double eps );
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STDMESHERS_EXPORT
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bool buildDistribution( const std::vector<double>& f, const int conv, const double start, const double end,
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const int nbSeg, std::vector<double>& data, const double eps );
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#endif
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