Time series chart horizontal gridlines through min/max peaks

Question

I am using JFreeChart to plot a timeseries chart. The chart is working fine, but the gridline alignment is becoming a problem.

My requirement is to show the horizontal g

Answer 1

Have you considered using a Marker to highlight the min and max values?

As trashgod sugested you use the Dataset to get the minimum and maximum values and then add a Marker to the Plot

Range range = dataset.getRangeBounds(true);
plot.addRangeMarker(new ValueMarker(range.getLowerBound(),Color.GREEN,new BasicStroke(2.0f)),Layer.BACKGROUND);
plot.addRangeMarker(new ValueMarker(range.getUpperBound(),Color.BLUE,new BasicStroke(2.0f)),Layer.BACKGROUND);