QtiPlot
0.9.8.2
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00001 /*************************************************************************** 00002 File : Integration.h 00003 Project : QtiPlot 00004 -------------------------------------------------------------------- 00005 Copyright : (C) 2007 by Ion Vasilief 00006 Email (use @ for *) : ion_vasilief*yahoo.fr 00007 Description : Numerical integration of data sets 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 INTEGRATION_H 00030 #define INTEGRATION_H 00031 00032 #include "Filter.h" 00033 00034 class Integration : public Filter 00035 { 00036 Q_OBJECT 00037 00038 public: 00039 enum Integrand{DataSet, AnalyticalFunction}; 00040 00041 Integration(ApplicationWindow *parent, Graph *g = 0); 00042 Integration(ApplicationWindow *parent, QwtPlotCurve *c); 00043 Integration(ApplicationWindow *parent, QwtPlotCurve *c, double start, double end); 00044 Integration(ApplicationWindow *parent, Graph *g, const QString& curveTitle); 00045 Integration(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end); 00046 Integration(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int start = 0, int end = -1, bool sort = false); 00047 Integration(const QString& formula, const QString& var, ApplicationWindow *parent, Graph *g, double start, double end); 00048 00049 void setWorkspaceSize(int size){d_workspace_size = size;}; 00050 00051 double area(){return d_area;}; 00052 QString variable(){return d_variable;}; 00053 QString formula(){return d_formula;}; 00054 00055 private: 00056 void init(); 00057 QString logInfo(); 00058 00059 void output(); 00060 00061 double trapez(); 00062 double gslIntegration(); 00063 00065 double d_area; 00067 double d_error; 00069 int d_workspace_size; 00070 00072 Integrand d_integrand; 00074 QString d_formula; 00076 QString d_variable; 00077 }; 00078 00079 #endif