00001 /*************************************************************************** 00002 File : QwtHistogram.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 : Histogram 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 #include "QwtBarCurve.h" 00030 00032 class QwtHistogram: public QwtBarCurve 00033 { 00034 public: 00035 QwtHistogram(Table *t, const QString& xColName, const char *name, int startRow, int endRow); 00036 00037 void copy(const QwtHistogram *h); 00038 00039 QwtDoubleRect boundingRect() const; 00040 00041 void setBinning(bool autoBin, double size, double begin, double end); 00042 bool autoBinning(){return d_autoBin;}; 00043 double begin(){return d_begin;}; 00044 double end(){return d_end;}; 00045 double binSize(){return d_bin_size;}; 00046 00047 void loadData(); 00048 void initData(const QVector<double>& Y, int size); 00049 00050 double mean(){return d_mean;}; 00051 double standardDeviation(){return d_standard_deviation;}; 00052 double minimum(){return d_min;}; 00053 double maximum(){return d_max;}; 00054 00055 private: 00056 void draw(QPainter *painter,const QwtScaleMap &xMap, 00057 const QwtScaleMap &yMap, int from, int to) const; 00058 00059 bool d_autoBin; 00060 double d_bin_size, d_begin, d_end; 00061 00063 double d_mean, d_standard_deviation, d_min, d_max; 00064 };