QwtPlotMultiBarChart not equal width

[nanthiran_2005]

Hi Uwe,

Thanks for the help. The line which disable the label helps. However, I still have to manually set the margin of yLeft and yRight. Otherwise, the bar chart will not be equal of width.
Attached below is the portion of code which help me to get the bar chart I want.

QwtPlot::Axis yAxis = QwtPlot::yLeft,
                  xAxis = QwtPlot::xBottom;
    setAxisScale(yAxis, 0, 100, 20);
    setAxisAutoScale(xAxis);
    enableAxis(yAxis, true);
 
    QwtScaleDraw *yAxis_scaleDraw = axisScaleDraw(yAxis);
    yAxis_scaleDraw->enableComponent(QwtScaleDraw::Backbone, false);
    yAxis_scaleDraw->enableComponent(QwtScaleDraw::Ticks, false);
 
    QwtScaleDraw *xAxis_scaleDraw = axisScaleDraw(xAxis);
    xAxis_scaleDraw->enableComponent(QwtScaleDraw::Backbone, false);
    xAxis_scaleDraw->enableComponent(QwtScaleDraw::Ticks, false);
    xAxis_scaleDraw->enableComponent(QwtScaleDraw::Labels, false);
 
    plotLayout()->setCanvasMargin(0);
    plotLayout()->setCanvasMargin(20, QwtPlot::yLeft); 
    plotLayout()->setCanvasMargin(20, QwtPlot::yRight);

QwtPlot::Axis yAxis = QwtPlot::yLeft,
                  xAxis = QwtPlot::xBottom;
    setAxisScale(yAxis, 0, 100, 20);
    setAxisAutoScale(xAxis);
    enableAxis(yAxis, true);

    QwtScaleDraw *yAxis_scaleDraw = axisScaleDraw(yAxis);
    yAxis_scaleDraw->enableComponent(QwtScaleDraw::Backbone, false);
    yAxis_scaleDraw->enableComponent(QwtScaleDraw::Ticks, false);

    QwtScaleDraw *xAxis_scaleDraw = axisScaleDraw(xAxis);
    xAxis_scaleDraw->enableComponent(QwtScaleDraw::Backbone, false);
    xAxis_scaleDraw->enableComponent(QwtScaleDraw::Ticks, false);
    xAxis_scaleDraw->enableComponent(QwtScaleDraw::Labels, false);

    plotLayout()->setCanvasMargin(0);
    plotLayout()->setCanvasMargin(20, QwtPlot::yLeft); 
    plotLayout()->setCanvasMargin(20, QwtPlot::yRight);

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