Zooming in too far with DateAxis throws Exception in 1.0.13

[MitchBuell]

In JFreeChart 1.0.13, when using a DateAxis, after zooming in enough I get an Exception thrown:

Code: Select all

java.lang.IllegalArgumentException: Requires xLow < xHigh.
	at org.jfree.chart.renderer.RendererUtilities.findLiveItemsLowerBound(RendererUtilities.java:75)
	at org.jfree.chart.renderer.RendererUtilities.findLiveItems(RendererUtilities.java:261)
	at org.jfree.chart.plot.XYPlot.render(XYPlot.java:3729)
	at org.jfree.chart.plot.XYPlot.draw(XYPlot.java:3310)
	at org.jfree.chart.JFreeChart.draw(JFreeChart.java:1235)
	at org.jfree.chart.ChartPanel.paintComponent(ChartPanel.java:1668)

Then the chart stops drawing correctly and can't be recovered.

It's easy to demonstrate this when using already small test data:

Code: Select all

for (int i = 0; i < 10; ++i)
        {
        	xyseries.add(i, Math.random());
        }

And start zooming in.

I understand that the DateAxis will interpret the X-value as milliseconds since the epoch, and that zooming in this far is rather pointless, the problem is that doing so will destroy the JFreeChart. Not even Auto Range fixes it.

[david.gilbert]

Thanks for the report. I thought I *had* squashed that bug during development...but obviously not! I'll try again.

[MitchBuell]

NumberAxis also have this problem, but you have to keep zooming in a lot further then a DateAxis.

In the process of continually zooming in, at some point the tick mark scale on the Domain and Range Axis completely disappears. You've zoomed in so far, all you see is the Axis label. At this point there's little use in zooming in any further, but after 10 or so more zoom ins, the same Exception is thrown and the JFreeChart is destroyed.

[tanklm]

Is there a work-around for this bug?

[einav.l@correlix.com]

Hi,
I have exactly the same problem when zooming into the chart.
Is there a fix or a workaround ?
Please assist
I need it urgently.
Thanks
Efrat