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