CODEWITHSUNDEEP
javachartsjfreechart
Anis H
Anis H

Reputation: 1150

Set "auto" Range for an XYAreaChart

I'm using the JFreechat API to draw an XYAreaChart with a TimeSeriesCollection dataset. The values I'm putting in the dataset are variables with no limit: they can go from 0 to more than 1000. The problem here is that I want to make the ValueAxis automatically fit the data.

I have tried to use :

    XYPlot plot = mychart.getXYPlot();
    ValueAxis axis = plot.getDomainAxis();
    axis.setAutoRange(true);

I see that with setAutoRange, it is not so "automatically." It's true that it changes the axis when the plot gets big values, but it doesn't re-size the axis when there is no more big data as shown here:

enter image description here

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enter image description here

I want that the axis Range gets back to fit the biggest value shown (~400 in this example) because it becomes hard to read the little values with this range without using zoom. Is that possible?

Upvotes: 3

Views: 1633

Answers (1)

trashgod
trashgod

Reputation: 205775

I'd examine two approaches:

  • A dataset that discards old data such as DynamicTimeSeriesCollection, shown here.
  • A dataset whose series allow a maximum age such as TimeSeriesCollection, shown here.

Upvotes: 1

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