如何将yAxis2添加到qCustomplot中?

I don't know how to add yAxis2 to a qcustomplot. The way i am using qcustomplot, I don't specify xAxis or yAxis. But i need to plot another graph on yAxis2. I will appreciate any inputs.

我不知道如何将yAxis2添加到qcustomplot中。我使用qcustomplot的方式，我不指定xAxis或yAxis。但我需要在yAxis2中绘制另一个图。如有任何意见，我将不胜感激。

    ui->widget->addGraph();
    ui->widget->graph()->setData(xVal,yVal);

    ui->widget->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectAxes |
                                 QCP::iSelectLegend | QCP::iSelectPlottables);

     ui->widget->graph()->setName(QString::number(yVal[0]));
    ui->widget->legend->setVisible(true);
     QFont legendFont = font();
    legendFont.setPointSize(10);
    ui->widget->legend->setFont(legendFont);
    ui->widget->legend->setSelectedFont(legendFont);
    ui->widget->rescaleAxes();
    ui->widget->replot();

1 个解决方案

#1

    ui->widget->yAxis2->setVisible(true);
    ui->widget->xAxis2->setVisible(true);
    ui->widget->yAxis2->scaleRange(-1,1);
    ui->widget->addGraph(ui->widget->xAxis2,ui->widget->yAxis2);
    ui->widget->graph(1)->setData(xVal,yVal);