Plots with time gaps render first and last data off the drawing area

[matoos32]

See https://github.com/matoos32/jfreechart-builder/blob/v1.5.4/screenshots/stock-chart-time-series-weekend-gaps.png

[matoos32]

It looks like this can for now be resolved by the user by resetting the domain axis (time axis) range:

Method 1:

• Primary click on the chart then drag the mouse. Let go of the button.

Method 2:

• Secondary click the chart
• Auto Range > Domain Axis (or Both Axes)

But on some charts, at least in the demo app, the axes ranges are reset and other data can go off the chart.

Needs investigating.