rrange

The set rrange command sets the range of the radial coordinate for a graph in polar mode. This has the effect of setting both xrange and yrange as well. The resulting xrange and yrange are both [-(rmax-rmin) : +(rmax-rmin)]. However if you later change the x or y range, for example by zooming, this does not change rrange, so data points continue to be clipped against rrange. Unlike other axes, autoscaling the raxis always results in rmin = 0. The reverse autoscaling flag is ignored. Note: Setting a negative value for rmin may produce unexpected results.