[OSM-talk] Islands in rivers

spaetz osm at sspaeth.de
Thu Aug 23 12:12:29 BST 2007


On Thu, Aug 23, 2007 at 08:23:01PM +1000, Brent Easton wrote:

> >> First, if I try to break the river down so that it's multiple ways, it
> >> doesn't render properly at all: the renderer makes a straight line
> >> connecting the end of the way to the beginning of the way. 
> >
> >  What happens if you make opposite banks part of the same way?  From
> >  what you describe is happening, you might get chunks of rendered
> >  river.  ASCII Art to describe what I think might happen, A>A>A is
> >  one riverbank way, B>B>B is another, | \ and / are where "the
> >  renderer make a straigt line connecting the end of the way to the
> >  beginning of the way
> >  
> >  A>A>A>A>A>A>AB>B>B>B>B>B>B>B
> >  |           /              \
> >  |          /                \
> >  A<A<A<A<A<AB<B<B<B<B<B<B<B<B<B
> >  
> >  Pure speculation here, someone might actually know!  
> 
> Yes, that is what I was trying to describe. You create a series of long thin 'natural=water' areas. 

No, you do it with waterway=riverbank, and have A and B bein non-continuous way (just the left and right riverbank). Osma should render it properly, if I rmember correctly.
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