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#include <QApplication>
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#include <QMainWindow>
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#include <qchartview.h>
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#include <qlineseries.h>
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#include <qchart.h>
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#include <qchartaxis.h>
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#include <qchartaxiscategories.h>
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#include <cmath>
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QTCOMMERCIALCHART_USE_NAMESPACE
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#define PI 3.14159265358979
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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QMainWindow window;
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QLineSeries* series0 = new QLineSeries();
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QPen blue(Qt::blue);
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blue.setWidth(3);
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series0->setPen(blue);
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QLineSeries* series1 = new QLineSeries();
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QPen red(Qt::red);
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red.setWidth(3);
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series1->setPen(red);
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int numPoints = 100;
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for (int x = 0; x <= numPoints; ++x) {
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series0->add(x, fabs(sin(PI/50*x)*100));
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series1->add(x, fabs(cos(PI/50*x)*100));
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}
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QChartView* chartView = new QChartView(&window);
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chartView->setRenderHint(QPainter::Antialiasing);
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chartView->setChartTitle("This is custom axis chart example");
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chartView->addSeries(series0);
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chartView->addSeries(series1);
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QLinearGradient backgroundGradient;
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backgroundGradient.setColorAt(0.0, Qt::white);
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backgroundGradient.setColorAt(1.0, QRgb(0xffff80));
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backgroundGradient.setCoordinateMode(QGradient::ObjectBoundingMode);
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chartView->setChartBackgroundBrush(backgroundGradient);
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QChartAxis* axisX = chartView->axisX();
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axisX->setLabelsAngle(45);
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axisX->setGridPen(Qt::DashLine);
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QChartAxisCategories& categoriesX = axisX->categories();
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categoriesX.insert(0,"low");
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categoriesX.insert(50,"medium");
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categoriesX.insert(100,"High");
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axisX->setMin(-10);
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axisX->setMax(2200);
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QChartAxis* axisY = chartView->axisY();
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axisY->setLabelsAngle(45);
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axisY->setShadesBrush(Qt::yellow);
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QChartAxisCategories& categoriesY = axisY->categories();
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categoriesY.insert(0,"low");
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categoriesY.insert(50,"medium");
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categoriesY.insert(100,"High");
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axisY->setMin(-10);
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axisY->setMax(200);
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window.setCentralWidget(chartView);
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window.resize(400, 300);
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window.show();
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return a.exec();
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}
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