FunctionCurve.h

Go to the documentation of this file.
00001 /***************************************************************************
00002     File                 : FunctionCurve.h
00003     Project              : QtiPlot
00004     --------------------------------------------------------------------
00005     Copyright            : (C) 2006 by Ion Vasilief
00006     Email (use @ for *)  : ion_vasilief*yahoo.fr
00007     Description          : Function curve class
00008 
00009  ***************************************************************************/
00010 
00011 /***************************************************************************
00012  *                                                                         *
00013  *  This program is free software; you can redistribute it and/or modify   *
00014  *  it under the terms of the GNU General Public License as published by   *
00015  *  the Free Software Foundation; either version 2 of the License, or      *
00016  *  (at your option) any later version.                                    *
00017  *                                                                         *
00018  *  This program is distributed in the hope that it will be useful,        *
00019  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
00020  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
00021  *  GNU General Public License for more details.                           *
00022  *                                                                         *
00023  *   You should have received a copy of the GNU General Public License     *
00024  *   along with this program; if not, write to the Free Software           *
00025  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
00026  *   Boston, MA  02110-1301  USA                                           *
00027  *                                                                         *
00028  ***************************************************************************/
00029 #ifndef FUNCTIONCURVE_H
00030 #define FUNCTIONCURVE_H
00031 
00032 #include "PlotCurve.h"
00033 
00034 class Graph;
00035 
00036 // Function curve class
00037 class FunctionCurve: public PlotCurve
00038 {
00039 public:
00040     enum FunctionType{Normal = 0, Parametric = 1, Polar = 2};
00041 
00042     FunctionCurve(const FunctionType& t, const QString& name = QString());
00043     FunctionCurve(const QString& name = QString());
00044 
00045     double startRange(){return d_from;};
00046     double endRange(){return d_to;};
00047     void setRange(double from, double to);
00048 
00049     QStringList formulas(){return d_formulas;};
00050     void setFormulas(const QStringList& lst){d_formulas = lst;};
00051 
00053     void setFormula(const QString& s){d_formulas = QStringList() << s;};
00054 
00055     QString variable(){return d_variable;};
00056     void setVariable(const QString& s){d_variable = s;};
00057 
00058     FunctionType functionType(){return d_function_type;};
00059     void setFunctionType(const FunctionType& t){d_function_type = t;};
00060 
00061     void copy(FunctionCurve *f);
00062 
00064     QString saveToString();
00066     static void restore(Graph *g, const QStringList& lst);
00067 
00069     QString legend();
00070 
00071     bool loadData(int points = 0, bool xLog10Scale = false);
00072 
00073     QMap<QString, double> constants(){return d_constants;};
00074     void setConstants(const QMap<QString, double>& map){d_constants = map;};
00075     void setConstant(const QString& parName, double val){d_constants.insert(parName, val);};
00076     void removeConstant(const QString& parName){d_constants.remove(parName);};
00077     void removeConstants(){d_constants.clear();};
00078 
00079 private:
00080     FunctionType d_function_type;
00081     QString d_variable;
00082     QStringList d_formulas;
00083     double d_from, d_to;
00084     QMap<QString, double> d_constants;
00085 };
00086 
00087 #endif