www.jfree.org

I have stock graphs and would like to draw lines over the graphs. Like a straigh line to see where it cuts the graph or draw fibonacci lines or other studies.
I that supported by jFreeChart?

thanks in advance,
babis

Hi,

Drawing trend lines, is not supported by JFreeChart, but you can do it implementing MouseListener on a chartPanel.

Also you can use ShapeAnnotations to draw your lines or other Items

what if i dont want the user to draw lines, but i want my generated charts to have a line drawn?

You can do that. Just calculate the trendline as a new series from the same data and use a CombinedPlot to merge the original plot and the one generated from that calculated series.