How can I plot 4 quadrants on a bubble chart in JavaFx ?

[ishu mishra]

I wanted to create a bubble chart with four quadrants. I can create the bubble chart but don't have an idea how to draw 4 quadrants (or how too split chart area in to 4 parts).
The quadrant chart can be easily created using JFreeChart library as given here (http://www.jroller.com/dgilbert/entry/better_looking_charts) but I am struggling with JavaFx.
Please help.

[John Damien Smith]

Also see:
http://stackoverflow.com/questions/25354560/quadrant-chart-using-javafx-bubble-chart
https://community.oracle.com/thread/3597286?sr=stream&ru=2733953 "Quadrant chart using JavaFX ?"