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javajfreechart

How to reset the rendered colors used in JFreeChart

I'm using a XYPlot to show a line graph with 1 or more lines in it. I have it combined with a listener pattern so it can receive updates: if so, it removes the lines using a dataset.removeAllSeries() (dataset is of type XYSeriesCollection) call, and then adds the new lines using dataset.addSeries(...) However, a new graph with new lines will have different colors!

So probably the Color renderer continues to distribute new colors.

Is there a possibility to reset the renderer, so it starts out with the first color again?

Solution

  • You can use the setSeriesPaint() method of the renderer to set a new color for each serie.

    example:

    renderer.setSeriesPaint(0, Color.red);
renderer.setSeriesPaint(1, Color.blue);

    First parameter is the index for serie.