FunctionCurve.h

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00001 /***************************************************************************
00002     File                 : FunctionCurve.h
00003     Project              : QtiPlot
00004     --------------------------------------------------------------------
00005     Copyright            : (C) 2006 by Ion Vasilief, Tilman Hoener zu Siederdissen
00006     Email (use @ for *)  : ion_vasilief*yahoo.fr, thzs*gmx.net
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 // Function curve class
00035 class FunctionCurve: public PlotCurve
00036 {
00037 public:
00038     enum FunctionType{Normal = 0, Parametric = 1, Polar = 2};
00039 
00040     FunctionCurve(const FunctionType& t, const char *name=0);
00041     FunctionCurve(const char *name=0);
00042 
00043     double startRange(){return d_from;};
00044     double endRange(){return d_to;};
00045     void setRange(double from, double to);
00046 
00047     QStringList formulas(){return d_formulas;};
00048     void setFormulas(const QStringList& lst){d_formulas = lst;};
00049 
00051     void setFormula(const QString& s){d_formulas = QStringList() << s;};
00052 
00053     QString variable(){return d_variable;};
00054     void setVariable(const QString& s){d_variable = s;};
00055 
00056     FunctionType functionType(){return d_function_type;};
00057     void setFunctionType(const FunctionType& t){d_function_type = t;};
00058 
00059     void copy(FunctionCurve *f);
00060 
00062     QString saveToString();
00063 
00065     QString legend();
00066 
00067     void loadData(int points = 0);
00068 
00069 private:
00070     FunctionType d_function_type;
00071     QString d_variable;
00072     QStringList d_formulas;
00073     double d_from, d_to;
00074 };
00075 
00076 #endif
00077 

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