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1 | 1 | #include <QApplication> |
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2 | 2 | #include <QMainWindow> |
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3 | 3 | #include <qchartview.h> |
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4 | 4 | #include <qlinechartseries.h> |
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5 | 5 | #include <qchart.h> |
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6 | 6 | #include <qchartaxis.h> |
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7 | 7 | #include <cmath> |
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8 | 8 | |
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9 | 9 | QTCOMMERCIALCHART_USE_NAMESPACE |
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10 | 10 | |
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11 | 11 | #define PI 3.14159265358979 |
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12 | 12 | |
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13 | 13 | int main(int argc, char *argv[]) |
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14 | 14 | { |
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15 | 15 | QApplication a(argc, argv); |
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16 | 16 | |
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17 | 17 | QMainWindow window; |
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18 | 18 | |
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19 | 19 | QLineChartSeries* series0 = new QLineChartSeries(); |
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20 | 20 | QPen blue(Qt::blue); |
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21 | 21 | blue.setWidth(3); |
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22 | 22 | series0->setPen(blue); |
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23 | 23 | QLineChartSeries* series1 = new QLineChartSeries(); |
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24 | 24 | QPen red(Qt::red); |
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25 | 25 | red.setWidth(3); |
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26 | 26 | series1->setPen(red); |
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27 | 27 | |
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28 | 28 | int numPoints = 100; |
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29 | 29 | |
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30 | 30 | for (int x = 0; x <= numPoints; ++x) { |
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31 | 31 | series0->add(x, fabs(sin(PI/50*x)*100)); |
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32 | 32 | series1->add(x, fabs(cos(PI/50*x)*100)); |
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33 | 33 | } |
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34 | 34 | |
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35 | 35 | QChartView* chartView = new QChartView(&window); |
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36 | 36 | |
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37 | 37 | chartView->setRenderHint(QPainter::Antialiasing); |
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38 | 38 | chartView->setTitle("Basic line chart example"); |
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39 | 39 | chartView->addSeries(series0); |
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40 | 40 | chartView->addSeries(series1); |
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41 | 41 | chartView->setChartBackgroundBrush(Qt::white); |
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42 | 42 | |
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43 | 43 | QChartAxis axis = chartView->defaultAxisX(); |
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44 | 44 | axis.setLabelsOrientation(QChartAxis::LabelsOrientationSlide); |
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45 | 45 | axis.setGridPen(Qt::DashLine); |
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46 | 46 | |
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47 | 47 | chartView->setDefaultAxisX(axis); |
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48 | axis.setShadesBrush(Qt::gray); | |
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48 | axis.setShadesBrush(Qt::lightGray); | |
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49 | 49 | chartView->setDefaultAxisY(axis); |
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50 | 50 | |
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51 | 51 | window.setCentralWidget(chartView); |
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52 | 52 | window.resize(400, 300); |
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53 | 53 | window.show(); |
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54 | 54 | |
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55 | 55 | return a.exec(); |
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56 | 56 | } |
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