This chart displays three series whose data points are displayed against independent scales.
JetChart implements GraphSet objects to hold multiple sets of series, each one keeping references
to a scale, a grid, an x axis, two y axis(left and right), a scrolling bar, a chart wall and a
series base, which is a line drawn from the 'zero' or the minimum values of automatic and manual
scales, respectively.
A GraphSet returns references to all these components, so it is possible to configure them
individually.
JetChart also supports multiline labels and multiline series legend. See page source for details.