How can I use tooltip in BarChart??

[monnom]

How can I use tooltip in Barchart?

I've found some document.. but, It's not useful.. -.-;

Help me! plz!

How's the renderer and generator 's relation?

[pmlb]

Create a tooltip generator then assign it to the renderer with the setToolTipGenerator method.
For instance for a CategoryDataset based barchart:

Code: Select all

StandardCategoryToolTipGenerator tt = new StandardCategoryToolTipGenerator();
renderer.setToolTipGenerator(tt);