canvas and interval of axis

[hassinoss]

Can we return the interval of xAxis from the canvas?

[Bob_Edwards]

Can we return the interval of xAxis from the canvas?

You can get the axis interval from your QwtPlot object:

double width = this->axisInterval(QwtPlot::xBottom).width();

double width = this->axisInterval(QwtPlot::xBottom).width();

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or you can get the width of the canvas like this:

int width = this->canvas()->width();

int width = this->canvas()->width();

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[hassinoss]

Thank you for your response, but are those two widths equals?