Sylvain,
I have not followed the discussion but there is no doubt in my mind
that:
* a multipolygon may have 0 or more inner rings;
* a multipolygon must have one or more outer rings;
* any inner ring can consist of any number of ways;
* any outer ring can consist of any number of ways.
There is absolutely no limitation that restricts the number of ways used
to make an inner or outer ring in any case. Even a small forest polygon
could have a multi-way outer ring *and* a multi-way inner ring.
It is of course true that a mapper will normally use as little ways as
possible - it doesn't generally make sense to split a 50-node inner ring
into multiple parts. If you do it, it is unnecessary, but not invalid.
Bye
Frederik
--
Frederik Ramm ## eMail [email protected] ## N49°00'09" E008°23'33"
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