Hi Thorsten, good points. When the tags like population are different the style may produce different POI (different type, same label), so my solution would not help in all cases. I also see the problem that we can have duplicates which are really different, e.g. two small hamlets with the same name (like Holzhausen which appears often in Germany). So, maybe a less general approach: Treat type=boundary relations special and detect the case that a node member with role=admin_centre is present. If that is the case, don't generate a POI. I fear that will also cause trouble in some cases, e.g. when the node with role=admin_centre doesn't have the wanted tags :-( Gerd
Date: Mon, 4 May 2015 08:46:15 +0200 From: kukuk@suse.de To: mkgmap-dev@lists.mkgmap.org.uk Subject: Re: [mkgmap-dev] Fw: Help
On Mon, May 04, Gerd Petermann wrote:
Hi Thorsten,
thanks for the feedback. What do you think about my proposed solution?
I like the idea. But I'm currently still thinking, if this really works. For something like "place=city", the place tag and the name are the most important thing mostly used. But what about population? What to do if only one of the "two" POI has full informations?
Even more complicated would be something like amenity=restaurant, if somebody adds a POI and adds all tags to the building, too (I think this is bad tagging and the POI should be removed from the OSM data, but that's another problem. When are this two POIs really the same? And what if the tags sligthly differ?
Thorsten