@@ -1,24 +1,44 | |||
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1 | /**************************************************************************** | |
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2 | ** | |
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3 | ** Copyright (C) 2012 Digia Plc | |
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4 | ** All rights reserved. | |
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5 | ** For any questions to Digia, please use contact form at http://qt.digia.com | |
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6 | ** | |
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7 | ** This file is part of the Qt Commercial Charts Add-on. | |
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8 | ** | |
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9 | ** $QT_BEGIN_LICENSE$ | |
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10 | ** Licensees holding valid Qt Commercial licenses may use this file in | |
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11 | ** accordance with the Qt Commercial License Agreement provided with the | |
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12 | ** Software or, alternatively, in accordance with the terms contained in | |
|
13 | ** a written agreement between you and Digia. | |
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14 | ** | |
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15 | ** If you have questions regarding the use of this file, please use | |
|
16 | ** contact form at http://qt.digia.com | |
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17 | ** $QT_END_LICENSE$ | |
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18 | ** | |
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19 | ****************************************************************************/ | |
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20 | ||
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1 | 21 | #include "wavechart.h" |
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2 | 22 | #include <QApplication> |
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3 | 23 | #include <QMainWindow> |
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4 | 24 | #include <QGLWidget> |
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5 | 25 | |
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6 | 26 | int main(int argc, char *argv[]) |
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7 | 27 | { |
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8 | 28 | QApplication a(argc, argv); |
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9 | 29 | |
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10 | 30 | QMainWindow window; |
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11 | 31 | QChart *chart = new QChart(); |
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12 | 32 | WaveChart *waveChart = new WaveChart(chart,&window); |
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13 | 33 | |
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14 | 34 | waveChart->setViewport( new QGLWidget() ); |
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15 | 35 | waveChart->setRenderHint(QPainter::Antialiasing); |
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16 | 36 | chart->setAnimationOptions(QChart::AllAnimations); |
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17 | 37 | chart->setTitle("This is wave generator."); |
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18 | 38 | |
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19 | 39 | window.setCentralWidget(waveChart); |
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20 | 40 | window.resize(400, 300); |
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21 | 41 | window.show(); |
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22 | 42 | |
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23 | 43 | return a.exec(); |
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24 | 44 | } |
@@ -1,48 +1,68 | |||
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1 | /**************************************************************************** | |
|
2 | ** | |
|
3 | ** Copyright (C) 2012 Digia Plc | |
|
4 | ** All rights reserved. | |
|
5 | ** For any questions to Digia, please use contact form at http://qt.digia.com | |
|
6 | ** | |
|
7 | ** This file is part of the Qt Commercial Charts Add-on. | |
|
8 | ** | |
|
9 | ** $QT_BEGIN_LICENSE$ | |
|
10 | ** Licensees holding valid Qt Commercial licenses may use this file in | |
|
11 | ** accordance with the Qt Commercial License Agreement provided with the | |
|
12 | ** Software or, alternatively, in accordance with the terms contained in | |
|
13 | ** a written agreement between you and Digia. | |
|
14 | ** | |
|
15 | ** If you have questions regarding the use of this file, please use | |
|
16 | ** contact form at http://qt.digia.com | |
|
17 | ** $QT_END_LICENSE$ | |
|
18 | ** | |
|
19 | ****************************************************************************/ | |
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20 | ||
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1 | 21 | #include "wavechart.h" |
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2 | 22 | #include <cmath> |
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3 | 23 | |
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4 | 24 | QTCOMMERCIALCHART_USE_NAMESPACE |
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5 | 25 | |
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6 | 26 | #define PI 3.14159265358979 |
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7 | 27 | static const int numPoints =100; |
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8 | 28 | |
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9 | 29 | WaveChart::WaveChart(QChart* chart, QWidget* parent) : |
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10 | 30 | QChartView(chart, parent), |
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11 | 31 | m_series(new QLineSeries()), |
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12 | 32 | m_wave(0), |
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13 | 33 | m_step(2 * PI / numPoints) |
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14 | 34 | { |
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15 | 35 | QPen blue(Qt::blue); |
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16 | 36 | blue.setWidth(3); |
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17 | 37 | m_series->setPen(blue); |
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18 | 38 | |
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19 | 39 | QTime now = QTime::currentTime(); |
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20 | 40 | qsrand((uint) now.msec()); |
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21 | 41 | |
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22 | 42 | int fluctuate = 100; |
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23 | 43 | |
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24 | 44 | for (qreal x = 0; x <= 2 * PI; x += m_step) { |
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25 | 45 | m_series->append(x, fabs(sin(x) * fluctuate)); |
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26 | 46 | } |
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27 | 47 | |
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28 | 48 | chart->addSeries(m_series); |
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29 | 49 | |
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30 | 50 | QObject::connect(&m_timer, SIGNAL(timeout()), this, SLOT(update())); |
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31 | 51 | m_timer.setInterval(5000); |
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32 | 52 | m_timer.start(); |
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33 | 53 | |
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34 | 54 | } |
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35 | 55 | ; |
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36 | 56 | |
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37 | 57 | void WaveChart::update() |
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38 | 58 | { |
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39 | 59 | |
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40 | 60 | int fluctuate; |
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41 | 61 | |
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42 | 62 | for (qreal i = 0, x = 0; x <= 2 * PI; x += m_step, i++) { |
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43 | 63 | fluctuate = qrand() % 100; |
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44 | 64 | m_series->replace(x, fabs(sin(x) * fluctuate)); |
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45 | 65 | |
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46 | 66 | } |
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47 | 67 | |
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48 | 68 | } |
@@ -1,24 +1,44 | |||
|
1 | /**************************************************************************** | |
|
2 | ** | |
|
3 | ** Copyright (C) 2012 Digia Plc | |
|
4 | ** All rights reserved. | |
|
5 | ** For any questions to Digia, please use contact form at http://qt.digia.com | |
|
6 | ** | |
|
7 | ** This file is part of the Qt Commercial Charts Add-on. | |
|
8 | ** | |
|
9 | ** $QT_BEGIN_LICENSE$ | |
|
10 | ** Licensees holding valid Qt Commercial licenses may use this file in | |
|
11 | ** accordance with the Qt Commercial License Agreement provided with the | |
|
12 | ** Software or, alternatively, in accordance with the terms contained in | |
|
13 | ** a written agreement between you and Digia. | |
|
14 | ** | |
|
15 | ** If you have questions regarding the use of this file, please use | |
|
16 | ** contact form at http://qt.digia.com | |
|
17 | ** $QT_END_LICENSE$ | |
|
18 | ** | |
|
19 | ****************************************************************************/ | |
|
20 | ||
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1 | 21 | #include <QTimer> |
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2 | 22 | #include <QTime> |
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3 | 23 | #include <QObject> |
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4 | 24 | #include <QLineSeries> |
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5 | 25 | #include <QChartView> |
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6 | 26 | |
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7 | 27 | QTCOMMERCIALCHART_USE_NAMESPACE |
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8 | 28 | |
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9 | 29 | class WaveChart: public QChartView |
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10 | 30 | { |
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11 | 31 | Q_OBJECT |
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12 | 32 | |
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13 | 33 | public: |
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14 | 34 | WaveChart(QChart* chart, QWidget* parent); |
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15 | 35 | |
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16 | 36 | private slots: |
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17 | 37 | void update(); |
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18 | 38 | |
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19 | 39 | private: |
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20 | 40 | QLineSeries* m_series; |
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21 | 41 | int m_wave; |
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22 | 42 | qreal m_step; |
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23 | 43 | QTimer m_timer; |
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24 | 44 | }; |
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