QwtPlotHistogram

I am currently working on a qt plotting program and was in the process of creating a histogram plot class from scratch when I came upon people mentioning the existence of a QwtPlotHistogram class. I have researched this and I cannot seem to find any documentation on how to implement it. Any help or a quick example would be greatly appreciated.

Download Qwt 6.x and check the tvplot example.

Uwe

hey,
Any one knows how to set some text on each histogram bar ?
I have used QwtPlotHistogram to plot my histogram.
I want diffetent labels on each bars of histogram

Overload QwtPlotHistogram ::drawColumn(),

Uwe

Could you please elaborate a little more on exactly what is to be done ?
I wrote

Code:

---

class Histogram: public QwtPlotHistogram
{
public:
    Histogram(const QString &, const QColor &);
    void setColor(const QColor &);
    void setValues(uint numValues, const double *);
    void drawColumn(QPainter *painter,const QwtColumnRect &rect,const QwtIntervalSample &samples);
};

---

and wrote this function

Code:

---

void Histogram::drawColumn(QPainter *painter,const QwtColumnRect &rect,const QwtIntervalSample &sample)
{
                drawColumn(painter,rect,samples);
	QString s="My Text";
	painter->drawText(50,100,s);
}

---

but no text appeared..