Yes, this is very simple. You can probably do it more complicated, like doing any number of sections on any 3d shape and the division of each section at the same time, choosing the degrees, etc.

Or may be pie charts from xml or tabulated text document...

You are right mac1
Geometry is not my priority at this moment as I told you in my PM. I will try different possibilities to give the model a natural look before the final render in SU.

Thank you very much, I'm impressed by the help received from the forum.

Sorry, it's not my intention to bother. It must be the mediterranean temperament you know...

I don't believe any computer could ever get irrational sentiments as be have. I'm more realistic, I think our generation can make many gradual changes to this system. I'm thinking in the enormous potential of the human intelligence when is well applied.

I can't believe our life must be conditioned to pay our home mortgage, etc.

Will visit your links, thanks.