QtiPlot  0.9.8.2
FunctionCurve.h
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1 /***************************************************************************
2  File : FunctionCurve.h
3  Project : QtiPlot
4  --------------------------------------------------------------------
5  Copyright : (C) 2006 by Ion Vasilief
6  Email (use @ for *) : ion_vasilief*yahoo.fr
7  Description : Function curve class
8 
9  ***************************************************************************/
10 
11 /***************************************************************************
12  * *
13  * This program is free software; you can redistribute it and/or modify *
14  * it under the terms of the GNU General Public License as published by *
15  * the Free Software Foundation; either version 2 of the License, or *
16  * (at your option) any later version. *
17  * *
18  * This program is distributed in the hope that it will be useful, *
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of *
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
21  * GNU General Public License for more details. *
22  * *
23  * You should have received a copy of the GNU General Public License *
24  * along with this program; if not, write to the Free Software *
25  * Foundation, Inc., 51 Franklin Street, Fifth Floor, *
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27  * *
28  ***************************************************************************/
29 #ifndef FUNCTIONCURVE_H
30 #define FUNCTIONCURVE_H
31 
32 #include "PlotCurve.h"
33 
34 class Graph;
35 
36 // Function curve class
37 class FunctionCurve: public PlotCurve
38 {
39 public:
40  enum FunctionType{Normal = 0, Parametric = 1, Polar = 2};
41 
42  FunctionCurve(const FunctionType& t, const QString& name = QString());
43  FunctionCurve(const QString& name = QString());
44 
45  double startRange(){return d_from;};
46  double endRange(){return d_to;};
47  void setRange(double from, double to);
48 
49  QStringList formulas(){return d_formulas;};
50  void setFormulas(const QStringList& lst){d_formulas = lst;};
51 
53  void setFormula(const QString& s){d_formulas = QStringList() << s;};
54 
55  QString variable(){return d_variable;};
56  void setVariable(const QString& s){d_variable = s;};
57 
60 
61  void copy(FunctionCurve *f);
62 
64  QString saveToString();
66  static void restore(Graph *g, const QStringList& lst);
67 
69  QString legend();
70 
71  bool loadData(int points = 0, bool xLog10Scale = false);
72 
74  int parametersCount(){return d_constants.count();};
76  QString parameterName(int index);
78  double parameterValue(int index);
80  double parameterValue(const QString& name);
81 
82  QMap<QString, double> constants(){return d_constants;};
83  void setConstants(const QMap<QString, double>& map){d_constants = map;};
84  void setConstant(const QString& parName, double val){d_constants.insert(parName, val);};
85  void removeConstant(const QString& parName){d_constants.remove(parName);};
86  void removeConstants(){d_constants.clear();};
87 
88 private:
90  QString d_variable;
91  QStringList d_formulas;
92  double d_from, d_to;
93  QMap<QString, double> d_constants;
94 };
95 
96 #endif
bool loadData(int points=0, bool xLog10Scale=false)
Definition: FunctionCurve.cpp:181
void setConstants(const QMap< QString, double > &map)
Definition: FunctionCurve.h:83
void removeConstants()
Definition: FunctionCurve.h:86
void removeConstant(const QString &parName)
Definition: FunctionCurve.h:85
double endRange()
Definition: FunctionCurve.h:46
A 2D-plotting widget.
Definition: Graph.h:123
double parameterValue(int index)
Returns the value of the parameter of rang index.
Definition: FunctionCurve.cpp:346
QStringList d_formulas
Definition: FunctionCurve.h:91
double d_to
Definition: FunctionCurve.h:92
FunctionType
Definition: FunctionCurve.h:40
int parametersCount()
Returns the number of parameters in your function formula.
Definition: FunctionCurve.h:74
QMap< QString, double > constants()
Definition: FunctionCurve.h:82
FunctionType d_function_type
Definition: FunctionCurve.h:86
Definition: FunctionCurve.h:40
QString saveToString()
Returns a string used when saving to a project file.
Definition: FunctionCurve.cpp:73
void setFunctionType(const FunctionType &t)
Definition: FunctionCurve.h:59
QStringList formulas()
Definition: FunctionCurve.h:49
void setVariable(const QString &s)
Definition: FunctionCurve.h:56
FunctionType functionType()
Definition: FunctionCurve.h:58
QString d_variable
Definition: FunctionCurve.h:90
FunctionCurve(const FunctionType &t, const QString &name=QString())
Definition: FunctionCurve.cpp:48
void setFormulas(const QStringList &lst)
Definition: FunctionCurve.h:50
Definition: FunctionCurve.h:37
double startRange()
Definition: FunctionCurve.h:45
void setConstant(const QString &parName, double val)
Definition: FunctionCurve.h:84
QMap< QString, double > d_constants
Definition: FunctionCurve.h:93
QString parameterName(int index)
Returns the name of the parameter of rang index.
Definition: FunctionCurve.cpp:329
void setFormula(const QString &s)
Provided for convenience when dealing with normal functions.
Definition: FunctionCurve.h:53
QString variable()
Definition: FunctionCurve.h:55
QString legend()
Returns a string that can be displayed in a plot legend.
Definition: FunctionCurve.cpp:163
Definition: FunctionCurve.h:40
Abstract 2D plot curve class.
Definition: PlotCurve.h:41
Definition: FunctionCurve.h:40
double d_from
Definition: FunctionCurve.h:92
void copy(FunctionCurve *f)
Definition: FunctionCurve.cpp:63
void setRange(double from, double to)
Definition: FunctionCurve.cpp:57
static void restore(Graph *g, const QStringList &lst)
Used when reading from a project file.
Definition: FunctionCurve.cpp:99