How can I add subdivision in a pie chart within a given piece of the pie?

Hello,

I'd like to create a pie chart with 6 pieces. Each pieces has a subarea and I'd like to subdivise each piece of the pie chart with respect to the values of the subarea.

for example, let's say that element #1 (of 6) of represent 50%. This gives us a pie with elements #1 occupying 50% of the total pie. Now, inside element #1, I have 2 sub-elements. The 1st representing 20% and the 2nd representing 80% of element #1. How can i create this subdivision with matlab? Each sub-element would be separated with a concentric line.

Hope my question is intelligible! Thanks!

Philippe Roy

[JCC]

I'm facing the same problem and can't find any solution. Could anybody help?