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1 | 1 | #include <QtGui/QApplication> |
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2 | 2 | #include <QMainWindow> |
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3 | 3 | #include <cmath> |
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4 | 4 | #include <qchartglobal.h> |
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5 | 5 | #include <qchartwidget.h> |
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6 | 6 | #include <qscatterseries.h> |
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7 | 7 | |
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8 | 8 | QTCOMMERCIALCHART_USE_NAMESPACE |
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9 | 9 | |
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10 | 10 | int main(int argc, char *argv[]) |
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11 | 11 | { |
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12 | 12 | QApplication a(argc, argv); |
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13 | 13 | |
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14 | 14 | // Create widget and scatter series |
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15 | QChartWidget chartWidget; | |
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15 | QChartWidget *chartWidget = new QChartWidget(); | |
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16 | 16 | QScatterSeries *scatter = |
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17 |
qobject_cast<QScatterSeries *>(chartWidget |
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17 | qobject_cast<QScatterSeries *>(chartWidget->createSeries(QChartSeries::SeriesTypeScatter)); | |
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18 | 18 | Q_ASSERT(scatter); |
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19 | 19 | |
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20 | 20 | // Add test data to the series |
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21 | 21 | QList<qreal> x; |
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22 | 22 | QList<qreal> y; |
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23 | 23 | for (qreal i(0.0); i < 20; i += 0.5) { |
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24 | 24 | // Linear data with random component |
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25 | 25 | x.append(i + ((qreal)(rand() % 100)) / 100 ); |
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26 | 26 | y.append(i + ((qreal)(rand() % 100)) / 100 ); |
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27 | 27 | } |
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28 | 28 | scatter->setData(x, y); |
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29 | 29 | |
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30 | 30 | // Use the chart widget as the central widget |
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31 | 31 | QMainWindow w; |
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32 | 32 | w.resize(640, 480); |
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33 |
w.setCentralWidget( |
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33 | w.setCentralWidget(chartWidget); | |
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34 | 34 | w.show(); |
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35 | 35 | |
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36 | 36 | return a.exec(); |
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37 | 37 | } |
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