DSCAnalysisTool/src/ui/centralwidget.cpp

<EFBFBD><EFBFBD>#include <QHBoxLayout>
#include <QRandomGenerator>

#include "centralwidget.h"

CentralWidget::CentralWidget(QWidget *parent)
    :QWidget(parent),
      _customPlot(new QCustomPlot)
{
    setStyleSheet("background-color: lightgray;");
    resize(888,666);

    QHBoxLayout *layout = new QHBoxLayout();
    layout->addWidget(_customPlot);
    this->setLayout(layout);

    //R<EFBFBD>^;u^,<EFBFBD><EFBFBD>n;u^
N<EFBFBD>v<EFBFBD>ppenc
    _customPlot->addGraph();
#if 0
    // init data
    QVector<double> x(101), y(101);
    for (int i = 0; i < 101; i++) {
        x[i] = i / 50.0 - 1;//<EFBFBD><EFBFBD>nx<EFBFBD>v<EFBFBD><EFBFBD>V:N-1~1
        y[i] = x[i] * x[i];
    }

    _customPlot->graph(0)->setData(x, y);
    //<EFBFBD><EFBFBD>nPWht<EFBFBD>h~{
    _customPlot->xAxis->setLabel("x coordinates");
    _customPlot->yAxis->setLabel("y coordinates");
    //<EFBFBD><EFBFBD>nPWht<EFBFBD><EFBFBD><EFBFBD>V<EFBFBD><EFBFBD>N<EFBFBD>Ob<EFBFBD>N<EFBFBD>S<EFBFBD>Nw0RhQ<EFBFBD><EFBFBD>penc
    _customPlot->xAxis->setRange(0, 1);
    _customPlot->yAxis->setRange(0, 100);
    _customPlot->replot();
#endif
    startTimer(1000);
}

void CentralWidget::timerEvent(QTimerEvent* event)
{
    //key<EFBFBD>vUSMO/f<EFBFBD>y
    double key = QDateTime::currentDateTime().toMSecsSinceEpoch() / 1000.0;
        //<EFBFBD>m<EFBFBD>Rpenc
        //O(u<EFBFBD><EFBFBD>:gpe<EFBFBD>NuNag<EFBFBD>f<EFBFBD>~
        //double value0 = realDataI();
    double value0 = QRandomGenerator::global()->bounded(10.123);
    _customPlot->graph(0)->addData(key, value0);//<EFBFBD>m<EFBFBD>Rpenc0R<EFBFBD>f<EFBFBD>~

        // Rd<EFBFBD>8<EFBFBD>yKNMR<EFBFBD>vpenc0ُ̑<EFBFBD>v8<EFBFBD><EFBFBD><EFBFBD>TNb<EFBFBD><EFBFBD><EFBFBD>n*jPWh<EFBFBD>[<EFBFBD>^<EFBFBD>v8M<EFBFBD>Tw<EFBFBD>eg
        //Mb<EFBFBD><EFBFBD>w<EFBFBD>0R<EFBFBD>`<EFBFBD><EFBFBD><EFBFBD>vHe<EFBFBD>g<EFBFBD><EFBFBD>S<EFBFBD>N<EFBFBD>teُ$N*N<P<EFBFBD>‰<EFBFBD>[>f:y<EFBFBD>vHe<EFBFBD>g0
        _customPlot->graph(0)->data()->remove(key - 80);
        //ꁨR<EFBFBD><EFBFBD><EFBFBD>[graph(1)<EFBFBD>f<EFBFBD>~yt<EFBFBD><EFBFBD>v<EFBFBD><EFBFBD>V<EFBFBD><EFBFBD>Y<EFBFBD>g
N<EFBFBD><EFBFBD><EFBFBD>[<EFBFBD>	g<EFBFBD>S<EFBFBD><EFBFBD>w
N0R<EFBFBD>V<EFBFBD>P
        //_N<EFBFBD>S<EFBFBD>N(uui->customPlot->yAxis->setRange(up,low)Kb<EFBFBD>R<EFBFBD><EFBFBD><EFBFBD>[yt<EFBFBD><EFBFBD><EFBFBD>V
        _customPlot->graph(0)->rescaleValueAxis(true);

    //ُ̑<EFBFBD>v8<EFBFBD>/fc*jPWh<EFBFBD>e<EFBFBD><EFBFBD><EFBFBD>[<EFBFBD>^:N8<EFBFBD>y<EFBFBD><EFBFBD>Y<EFBFBD>g<EFBFBD>`<EFBFBD><EFBFBD>*jPWh>f:y<EFBFBD>fY<EFBFBD>v<EFBFBD>e<EFBFBD><EFBFBD>
    //1\<EFBFBD>b8<EFBFBD>te:N<EFBFBD>k<EFBFBD><EFBFBD>'Y0R<P<EFBFBD><EFBFBD>k<EFBFBD>Y<EFBFBD><EFBFBD>>f:y60<EFBFBD>y<EFBFBD><EFBFBD><EFBFBD>1\9eb600
    //ُ<EFBFBD>eremoveDataBefore(key-8)-N<EFBFBD>v8_N<EFBFBD><EFBFBD>9eb60<EFBFBD>&TR<EFBFBD>f<EFBFBD>~>f:y
N<EFBFBD>[te0

        _customPlot->yAxis->setRange(0,20);//<EFBFBD><EFBFBD><EFBFBD>[xt<EFBFBD><EFBFBD>v<EFBFBD><EFBFBD>V
   _customPlot->xAxis->setRange(key + 0.25, 80, Qt::AlignRight);//<EFBFBD><EFBFBD><EFBFBD>[xt<EFBFBD><EFBFBD>v<EFBFBD><EFBFBD>V
   _customPlot->replot();
}