Current state and problem: The overlay feature of
jCharts 0.6.0 allows for multiple data series to be
plotted in one chart. However, these data series use
the same (y) scale. There are, however, numerous cases
where it would be useful to plot two dataseries in one
chart using distinct scales.
Desired feature: Provide a facility to overlay two data
series, displaying the y scale of the first data series
at the left-hand side of the chart and the y scale of
the second data series on the right-hand side of the chart.