Get histo range clicked in QwtPlotMultiBarChart

[Younes K. <kha...@gm...>]

Hello,

I have a QwtPlotMultiBarChart where each bar corresponds to a range of
values.
I would like to have a tracker that gives the range of the clicked point.

I overloaded trackerText like this:

virtual QwtText trackerText(const QPoint &pos) const

    {

        QwtText text;



        const QwtScaleMap xMap = this->plot()->canvasMap(this->xAxis());

        const double xPos = xMap.transform( pos.x() );


        for (int i=0; i < histo_nb; i++){

            if (pos.x() <= histo_bound[i][0] && pos.x() >= histo_bound[i][1])

                text.setText("Here");

        }



        return text;

    }


Is there a way to map xPos to the corresponding X label ?

Best regards,

-- 
Younes Khadraoui, PhD
*Co-Founder at Ostadhi.com | Research Engineer | Data Scientist |
Enterpreneur*