Dynamic report chart, legend not hiding unused pens

[PGriffith]

Take a look at this other post of mine about changing the legend:

EasyChart legend: increase key line width and change colours

Well, that ended up being way more involved than I figured it would be. But because I enjoyed myself: (Preemptive disclaimer: Don’t even think of trying to call in to support if this doesn’t work for you) from org.jfree.chart.renderer.xy import XYLineAndShapeRenderer from org.jfree.chart import LegendItem legend = chart.getLegend() plot = chart.getPlot() renderer = plot.getRenderer() class CustomRenderer(XYLineAndShapeRenderer): def getLegendItem(self, dataset, series): original =…

The trick is to implement a 'custom' XYItemRenderer class that allows you to provide your own arbitrary set of legend items to display.