Method plotRect

3rdparty/qwt/src/qwt_polar_plot.cpp:1120–1123

! The plot area depends on the size of the canvas and the zoom parameters. \return Bounding rect of the plot area */

 */
QRectF QwtPolarPlot::plotRect() const
{
    return plotRect( canvas()->contentsRect() );
}

/*!
   \brief Calculate the bounding rect of the plot area