[talk-ph] railway being shadowed by trunk highway on mapnik

Eugene Alvin Villar seav80 at gmail.com
Fri Dec 31 13:33:58 GMT 2010

Hi Ed,

Yes, there is a way. The ones who maintain the Mapnik style rendering
rules just need to set the layering and prioritization rules for
railways vs. highways.

The question is, is this something that they will be willing to
change? Admittedly, drawing railways on top of highways is simply a
cosmetic difference and does not really affect anything critical. We
can make a suggestion, but I'm not sure they might consider changing
it given that there are a lot of other bugs and problems in the Mapnik

I hope I've answered your question. :-)


On Fri, Dec 31, 2010 at 8:14 PM, Ed Garcia <eppgarcia at gmail.com> wrote:
> Hello,
> I was looking at the Malolos Bulacan area and noticed that, at wide zoom
> levels,  the railway running along Mcarthur highway disappears and only the
> highway is shown.
> please see
> http://www.openstreetmap.org/?lat=14.8419&lon=120.8506&zoom=14&layers=M
> For a moment there, I thought that the railway was not yet traced in that
> area of the map and so I set out to plot it in JOSM.  But in JOSM the
> railway was already there!  And I found out that it is actually showing in
> Osmarender layer.  Apparently, this is just a behaviour of Mapnik.
> please see
> http://www.openstreetmap.org/?lat=14.8419&lon=120.8506&zoom=14&layers=O
> Is there a way to make mapnik display the railway "over" the highway so it
> does not disappear?
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