[OSM-talk] Large Rivers in general, mapnik rendering in Particular

[Artem Pavlenko]

On 8 Feb 2008, at 11:27, David Earl wrote:

> You could do it as a relation.
>
> The river bank would be a set of ways (each of which shares its end  
> nodes with the ends of one of the others), and you could have a  
> role for the one or two ways which close the loop which says "this  
> is structural, not really part of the river bank". The renderer  
> would have to assemble the polygon from the constituent ways (start  
> with one way, find the end node as the start node of another way  
> and so on), but then rendering would be as per any other polygon.
>
> It's a bit fiddly, but it removes the problems of the
> artificial connections across the water not eing idetifiable while  
> at the same time still providing a complete polygon (albeit  
> indirectly) for the renderer to work on.

Yes, this sounds reasonable to me.
>
> David

Artem