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