[OSM-talk] Nested areas

[spaetz]

> > osmarender rules pay attention to the layer tag even when dealing with
> > areas. In this case the river is on layer=-1, and the industrial area
> > has no layer tag (so defaults to 0). osmarender is rendering all -1
> > objects first, then moves on to the layer 0 objects.
> 
> This seems wrong to me.  An easy fix would be to subtract a number (e.g. 
> 10) from the layer value of areas so they always get rendered under 
> non-area objects.  Maybe I'll look at doing this when I don't have a 
> hundred and one other things to do. :)  I suspect there's no easy way of 
> doing the surface-area calculation to keep small areas on top though.

Why should it work differently? If I want a tunnel under a forest, a layer=-1 *should* draw the tunnel under the forest. Why do you think it's doing something wrongly? tagging a river with layer=-1 seems wrong to me on the other hand.

spaetz