On 04/10/2017 14:34, Gerd Petermann wrote:
Can you explain why this would be useful?
If it helps, I can see why it might be useful to find out which other OSM objects a node is part of, given that I'm just about to make use of exactly that capability in a lua script called from osm2pgsql. In my case it'd be "do something different for information route markers based on what route relation they're part of", but I can certainly see why someone might want to "do something different if they're mounted on a wall". This of course echoes Richard Fairhurst's post here back at http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2017q1/026289.html . Personally I'd find it extremely useful to be able to take say https://github.com/SomeoneElseOSM/SomeoneElse-style/blob/master/style.lua and use that as a basis for styling both in OSM Carto and mkgmap, but unfortunately I've no idea what'd be needed on the Java/lua integration side. Best Regards, Andy