I am new to JFreeChart Lingo and would appreciate some help on issue faced by me

I am rendering a Meter Chart having different ranges (so far so good.)
But the problem arises when my range data is big (decimal data) causing the Tick labels to overlap and hence spoil the look n feel of the Chart.
I tried to search for API that would enable me to reposition the tick lables ?
Any one aware of it or a better solution for this issue ?
Thanks in advance !
Cheers.