Trying to get XY-values next to the crosshair

DarkMark · Post by **DarkMark** » Thu Jun 14, 2007 1:14 pm

Hi,

I'm using a DefaultXYDataset and XYPlot.
I'm also using a crosshair and I am able to query the X and Y values where the crosshair points at. But I'd also like to have the values in the near area around the crosshair, e.g. the XY directly before and after to calculate a gradiant.

How can I do this? It would be great if could query the series and the index in the series, but I can't find a way to do so.

wzwei28 · Post by **wzwei28** » Fri Oct 12, 2007 3:33 pm

Simple algorithm/patch/source code available at following link:
http://www.jfree.org/phpBB2/viewtopic.php?p=64888#64888