[OSM-talk] Wood & Park mapnik carto anomaly?

[Janko Mihelić]

Ideally we could render little trees on top of the park.

Janko

2014-09-16 14:41 GMT+02:00 Matthijs Melissen <info at matthijsmelissen.nl>:

> On 16 September 2014 11:25, Dave F. <davefox at madasafish.com> wrote:
> > I've mapped an area where a woodland overlaps with a park:
> > http://www.openstreetmap.org/#map=17/51.48959/-2.52536
> >
> > The new mapnik rendering doesn't display it.
> > Here's a comparison with old & new:
> > http://bl.ocks.org/tyrasd/raw/6164696/#16.00/51.4890/-2.5267
>
> In general, we render smaller landuse on top of larger landuse. That
> gives sometimes unexpected results if two landuse areas overlap each
> other only partially. However, I can't think of any better ordering.
>
> In the old rendering, the overlap was visible because we rendered park
> transparent. However, we removed the transparent rendering because it
> often gives counterintuitive colours. The old rendering of this place
> is a good example: you wouldn't really guess that the middle green
> colour denotes an overlap of wood and park.
>
> So I don't think this is something we can really fix on the rendering side.
>
> -- Matthijs
>
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