QT_CHARTS_USE_NAMESPACE
Widget::Widget(QWidget *parent)
: QWidget(parent)
{
setMinimumSize(800, 600);
//! [1]
QChartView *chartView = new QChartView;
chartView->setRenderHint(QPainter::Antialiasing);
QChart *chart = chartView->chart();
chart->legend()->setVisible(false);
chart->setTitle("Nested donuts demo");
chart->setAnimationOptions(QChart::AllAnimations);
//! [1]
//! [2]
qreal minSize = 0.1;
qreal maxSize = 0.9;
int donutCount = 5;
//! [2]
//! [3]
for (int i = 0; i < donutCount; i++) {
QPieSeries *donut = new QPieSeries;
int sliceCount = 3 + QRandomGenerator::global()->bounded(3);
for (int j = 0; j < sliceCount; j++) {
qreal value = 100 + QRandomGenerator::global()->bounded(100);
QPieSlice *slice = new QPieSlice(QString("%1").arg(value), value);
slice->setLabelVisible(true);
slice->setLabelColor(Qt::white);
slice->setLabelPosition(QPieSlice::LabelInsideTangential);
connect(slice, &QPieSlice::hovered, this, &Widget::explodeSlice);
donut->append(slice);
donut->setHoleSize(minSize + i * (maxSize - minSize) / donutCount);
donut->setPieSize(minSize + (i + 1) * (maxSize - minSize) / donutCount);
}
m_donuts.append(donut);
chartView->chart()->addSeries(donut);
}
//! [3]
// create main layout
//! [4]
QGridLayout *mainLayout = new QGridLayout;
mainLayout->addWidget(chartView, 1, 1);
setLayout(mainLayout);
//! [4]
//! [5]
updateTimer = new QTimer(this);
connect(updateTimer, &QTimer::timeout, this, &Widget::updateRotation);
updateTimer->start(1250);
//! [5]
}
void MEX_PerfMonChart::setChart(QList<int> lowestList, QList<int> highestList, QList<int> averageList)
{
//Set layout
QGridLayout *layout = new QGridLayout(this);
QBarSet *low = new QBarSet("Lowest");
QBarSet *high = new QBarSet("Highest");
QBarSet *average = new QBarSet("Average");
///-1 entfernen um letzten chart anzuzeigen - for (int i=0; i<(lowestList.size()-1); ++i)
for (int i=0; i<(lowestList.size()); ++i)
{
//Chart list debug:
//qDebug() <<"avglist at(" << i << ")" << averageList.at(i);
*low << lowestList.at(i);
*high << highestList.at(i);
*average<< averageList.at(i);
}
QBarSeries* series = new QBarSeries();
series->append(low);
series->append(high);
series->append(average);
QChart *chart = new QChart();
chart->addSeries(series);
QStringList durations;
durations << "duration1" << "duration2" << "duration3" << "duration4" << "duration5";
QBarCategoryAxis *axis = new QBarCategoryAxis();
axis->append(durations);
chart->createDefaultAxes();
chart->setAxisX(axis, series);
chart->legend()->setVisible(true);
chart->legend()->setAlignment(Qt::AlignBottom);
chart->setTitle("Durations in nanoseconds");
chart->setAnimationOptions(QChart::SeriesAnimations);
QChartView *chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);
layout->addWidget(chartView,0,0);
}
QTCOMMERCIALCHART_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
//![1]
QLineSeries* series = new QLineSeries();
//![1]
//![2]
series->append(10, -6);
series->append(12, 4);
series->append(13, 8);
series->append(17, 4);
series->append(20, 5);
*series << QPointF(11, 1) << QPointF(13, 3) << QPointF(17, 6) << QPointF(18, 3) << QPointF(20, 2);
//![2]
//![3]
QChart* chart = new QChart();
chart->addSeries(series);
chart->setTitle("Simple line chart example");
// ×ø±ê·¶Î§ÉèÖã¬Èç¹û²»³õʼ»¯£¬x·¶Î§Îª×ÔÊÊÓ¦
chart->axisX()->setRange(-10, 10); // ³õʼ»¯ºá×ø±ê·¶Î§
chart->axisY()->setRange(20, 30); // ³õʼ»¯×Ý×ø±ê·¶Î§
//![3]
//![4]
QChartView* chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);
//![4]
//![5]
QMainWindow window;
window.setCentralWidget(chartView);
window.resize(400, 300);
window.show();
//![5]
return a.exec();
}
QT_CHARTS_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
//![1]
QBarSet *set0 = new QBarSet("Jane");
QBarSet *set1 = new QBarSet("John");
QBarSet *set2 = new QBarSet("Axel");
QBarSet *set3 = new QBarSet("Mary");
QBarSet *set4 = new QBarSet("Samantha");
*set0 << 1 << 2 << 3 << 4 << 5 << 6;
*set1 << 5 << 0 << 0 << 4 << 0 << 7;
*set2 << 3 << 5 << 8 << 13 << 8 << 5;
*set3 << 5 << 6 << 7 << 3 << 4 << 5;
*set4 << 9 << 7 << 5 << 3 << 1 << 2;
//![1]
//![2]
QHorizontalBarSeries *series = new QHorizontalBarSeries();
series->append(set0);
series->append(set1);
series->append(set2);
series->append(set3);
series->append(set4);
//![2]
//![3]
QChart *chart = new QChart();
chart->addSeries(series);
chart->setTitle("Simple horizontal barchart example");
chart->setAnimationOptions(QChart::SeriesAnimations);
//![3]
//![4]
QStringList categories;
categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
QBarCategoryAxis *axisY = new QBarCategoryAxis();
axisY->append(categories);
chart->setAxisY(axisY, series);
QValueAxis *axisX = new QValueAxis();
chart->setAxisX(axisX, series);
axisX->applyNiceNumbers();
//![4]
//![5]
chart->legend()->setVisible(true);
chart->legend()->setAlignment(Qt::AlignBottom);
//![5]
//![6]
QChartView *chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);
//![6]
//![7]
QMainWindow window;
window.setCentralWidget(chartView);
window.resize(420, 300);
window.show();
//![7]
return a.exec();
}
QT_CHARTS_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
//![1]
QLineSeries *series = new QLineSeries();
//![1]
//![2]
// data from http://www.swpc.noaa.gov/ftpdir/weekly/RecentIndices.txt
// http://www.swpc.noaa.gov/ftpdir/weekly/README
// http://www.weather.gov/disclaimer
QFile sunSpots(":sun");
if (!sunSpots.open(QIODevice::ReadOnly | QIODevice::Text)) {
return 1;
}
QTextStream stream(&sunSpots);
while (!stream.atEnd()) {
QString line = stream.readLine();
if (line.startsWith("#") || line.startsWith(":"))
continue;
QStringList values = line.split(" ", QString::SkipEmptyParts);
QDateTime momentInTime;
momentInTime.setDate(QDate(values[0].toInt(), values[1].toInt() , 15));
series->append(momentInTime.toMSecsSinceEpoch(), values[2].toDouble());
}
sunSpots.close();
//![2]
//![3]
QChart *chart = new QChart();
chart->addSeries(series);
chart->legend()->hide();
chart->setTitle("Sunspots count (by Space Weather Prediction Center)");
//![3]
//![4]
QDateTimeAxis *axisX = new QDateTimeAxis;
axisX->setTickCount(10);
axisX->setFormat("MMM yyyy");
axisX->setTitleText("Date");
chart->addAxis(axisX, Qt::AlignBottom);
series->attachAxis(axisX);
QValueAxis *axisY = new QValueAxis;
axisY->setLabelFormat("%i");
axisY->setTitleText("Sunspots count");
chart->addAxis(axisY, Qt::AlignLeft);
series->attachAxis(axisY);
//![4]
//![5]
QChartView *chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);
//![5]
//![6]
QMainWindow window;
window.setCentralWidget(chartView);
window.resize(820, 600);
window.show();
//![6]
return a.exec();
}
