void Widget::plotQtChart() { QChart* chart = ui->qtChart->chart(); if(!chart) { chart = new QChart(); ui->qtChart->setChart(chart); } QValueAxis * axisX = qobject_cast<QValueAxis *>(chart->axisX()); QValueAxis * axisY = qobject_cast<QValueAxis *>(chart->axisY()); QLineSeries* line = NULL; if(chart->series().size()>0) { line = qobject_cast<QLineSeries*>(chart->series().at(0)); } else { line = new QLineSeries; } line->setUseOpenGL(true); chart->addSeries(line); line->attachAxis(axisX); line->attachAxis(axisY); QVector<QPointF> points; for(int i=0;i<320000;++i) { points.append(QPointF(i,sin(i))); } line->replace(points); }
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); this->loadSettings(); this->saveSettings(); this->initTab(); //Ram data & graph QJsonObject dataRam; QChart *chart = new QChart(); chart->legend()->hide(); chart->setTitle("RAM Disponible"); chartView = new QChartView(chart); chartView->setRenderHint(QPainter::Antialiasing); ui->verticalLayout_2->addWidget(chartView); QTimer *timer = new QTimer(this); connect(timer, SIGNAL(timeout()), this, SLOT(refreshRam())); timer->start(this->ms_time); }
QChart *createChart(const DataTable &table) { QChart *chart = new QChart(); chart->setTitle("StackedBar: BarCateogry X, Log Y"); QString name("Series "); QStackedBarSeries *series = new QStackedBarSeries(chart); QLogValueAxis *logvalueaxis = new QLogValueAxis(); logvalueaxis->setBase(2); QBarCategoryAxis *barcategory = new QBarCategoryAxis(); for (int i(0); i < table.count(); i++) { QBarSet *set = new QBarSet("Bar set " + QString::number(i)); foreach (Data data, table[i]) *set << data.first.y(); series->append(set); } chart->addSeries(series); int count = series->barSets().first()->count(); for (int i = 0; i < count; i++) { barcategory->append("BarSet " + QString::number(i)); } chart->setAxisY(logvalueaxis, series); chart->setAxisX(barcategory, series); return chart; }
void DeclarativePieSeries::componentComplete() { DeclarativeChart *declarativeChart = qobject_cast<DeclarativeChart *>(parent()); if (declarativeChart) { QChart *chart = qobject_cast<QChart *>(declarativeChart->m_chart); Q_ASSERT(chart); chart->addSeries(this); } }
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 Widget::initQtChart() { QChart* chart = ui->qtChart->chart(); if(!chart) { chart = new QChart(); ui->qtChart->setChart(chart); } QValueAxis *axisX = new QValueAxis; QValueAxis *axisY = new QValueAxis; chart->addAxis(axisX, Qt::AlignBottom); chart->addAxis(axisY, Qt::AlignLeft); chart->legend()->hide(); }
QChart *createChart(const DataTable &table) { QChart *chart = new QChart(); chart->setTitle("Value X , Value Y"); QString name("Series "); int nameIndex = 0; foreach (DataList list, table) { QLineSeries *series = new QLineSeries(chart); foreach (Data data, list) series->append(data.first); series->setName(name + QString::number(nameIndex)); nameIndex++; chart->addSeries(series); }
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(); }
int main(int argc, char *argv[]) { QApplication a(argc, argv); QMainWindow window; QChart *chart = new QChart(); WaveChart *waveChart = new WaveChart(chart,&window); waveChart->setViewport( new QOpenGLWidget() ); waveChart->setRenderHint(QPainter::Antialiasing); chart->setAnimationOptions(QChart::AllAnimations); chart->setTitle("This is wave generator."); window.setCentralWidget(waveChart); window.resize(400, 300); window.show(); return a.exec(); }
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); }
void WidgetTableProgression::updateWithEasing(SystemProgressionTable* progression, QChartView *chartView, int finalLevel) { int start = progression->initialValue()->kind() == PrimitiveValueKind ::Number ? progression->initialValue()->numberValue() : 0; int change = (progression->finalValue()->kind() == PrimitiveValueKind ::Number ? progression->finalValue()->numberValue() : 0) - start; int duration = finalLevel - 1; int value = 0; double x; bool specificValue; QTableWidgetItem *itemLevel, * itemProgression; // Chart lines initialization deleteLines(); m_line = new QLineSeries(); m_horizontalLine = new QLineSeries(); QVector<QPointF> expList; *m_line<< QPointF(0, 0); // Update according to equation for (int i = 0; i < finalLevel; i++) { x = i; value = m_table->value(i + 1, -1); specificValue = value != -1; if (!specificValue) { switch (progression->equation()) { case 0: value = easingLinear(x, start, change, duration); break; case -1: value = easingQuadraticIn(x, start, change, duration); break; case 1: value = easingQuadraticOut(x, start, change, duration); break; case -2: value = easingCubicIn(x, start, change, duration); break; case 2: value = easingCubicOut(x, start, change, duration); break; case -3: value = easingQuarticIn(x, start, change, duration); break; case 3: value = easingQuarticOut(x, start, change, duration); break; case -4: value = easingQuinticIn(x, start, change, duration); break; case 4: value = easingQuinticOut(x, start, change, duration); break; default: value = 0; } } itemLevel = new QTableWidgetItem(QString::number(i + 1)); itemProgression = new QTableWidgetItem(QString::number(value)); if (specificValue) { itemProgression->setForeground(m_editedColor); } setItem(i, 0, itemLevel); setItem(i, 1, itemProgression); *m_line << QPoint(i + 1, value); } // Chart config *m_horizontalLine << QPointF(1, 0) << QPointF(finalLevel, 0); QAreaSeries *series = new QAreaSeries(m_line, m_horizontalLine); QPen pen(0x4f0a5b); pen.setWidth(2); series->setPen(pen); QLinearGradient gradient(QPointF(0, 0), QPointF(0, 1)); gradient.setColorAt(0.0, 0x9234a3); gradient.setColorAt(1.0, 0x9234a3); gradient.setCoordinateMode(QGradient::ObjectBoundingMode); series->setBrush(gradient); QChart *chart = chartView->chart(); chart->removeAllSeries(); chart->addSeries(series); chart->createDefaultAxes(); QValueAxis *axisX = reinterpret_cast<QValueAxis *>(chart->axes(Qt ::Horizontal).first()); QValueAxis *axisY = reinterpret_cast<QValueAxis *>(chart->axes(Qt ::Vertical).first()); axisX->setRange(1, finalLevel); axisY->setRange(0, value); axisX->setTickCount(5); axisX->setLabelFormat("%d"); axisY->setTickCount(5); axisY->setLabelFormat("%d"); chart->legend()->setVisible(false); chartView->setRenderHint(QPainter::Antialiasing); m_completing = false; }
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(); }
QChart *createChart(const DataTable &table) { QChart *chart = new QChart(); chart->setTitle("DateTime X , Value Y"); QValueAxis *valueaxis = new QValueAxis(); QDateTimeAxis *datetimeaxis = new QDateTimeAxis(); datetimeaxis->setTickCount(10); datetimeaxis->setFormat("yyyy"); qreal day = 1000l * 60l * 60l * 24l; QString name("Series "); int nameIndex = 0; foreach (DataList list, table) { QLineSeries *series = new QLineSeries(chart); foreach (Data data, list) { QPointF point = data.first; series->append(day * 365l * 30l + point.x() * day * 365l, point.y()); }