[OSM-talk] Mulltipolygons and Mapnik

[Dermot McNally]

2008/5/23 Chris Hill <chillly809 at yahoo.co.uk>:
> I've worked with islands before.  It seems that the key points are:
> 1. make sure that the same tag is used on the inner and outer, in this case
> natural=water
> 2. Make sure that the outer is clockwise and inner(s) are anticlockwise
>
> I took the liberty of changing the islands to match their outer so I expect
> it to render.

It's worth a try, and we'll know in a week, but I'm not so sure this
will cure the problem. Otherwise, how do you explain the island that
already was tagged the same but still didn't render on the mapnik
layer? I'm also about 90% sure that I've seen untagged islands with an
inner role in the relations showing up OK in the past.

Regardless, we need to decide:

* What version of this tagging we think _should_ be considered correct.
* Ensure both main renderers will accept the "valid" form.
* Adapt the wiki as required to reflect reality

Dermot

-- 
--------------------------------------
Iren sind menschlich