[mkgmap-dev] [PATCH v1] Multipolygon: Allow nested inner polygons

Tue Mar 2 17:48:15 GMT 2010

> WanMil schrieb:
>> I have found that some multipolygons use nested inner polygons.
>> Example:
>> * A forest (outer) with a lake (inner) that has an island (inner) which
>> is not a forest. (example:
>> http://www.openstreetmap.org/browse/relation/331402)
>
> But neither mapnik nor osmarender show the inner-inner island (wood),
> because this construct is not a valid advanced-multipolygon.
>
> Chris
>

The patch supports the complete multipolygon specification. And 
additionally it is tolerant towards incorrect (but reasonable) 
multipolygons.
So why should mkgmap be restrictive if it doesn't need to?

WanMil