buildings highlighted are only ways, not multipolygon relations

[MarcoMinghini]

Buildings found on the map are just the ways having building=_, while _relations* having building=* and type=multipolygon (typically buildings having an inner courtyard) are not shown (example: http://www.openstreetmap.org/relation/1120279)

[MarcoMinghini]

Sorry, I've just read this in the README. However I think this is an important feature to add so I hope to see it in the future. Thanks!

[tyrasd]

yeah, it's one of the current limitations. It would be possible to add without almost any effort to osm-analytics, but requires having the multipolygon geometries is the osm-qa-tiles. And from what I can see, it should be possible to include them there as the producing code seems to already support it. On the other hand I'm not 100% sure if this is going to land in osm-qa-tiles anytime soon… //cc @aaronlidman

[aaronlidman]

We're looking into adding multipolygons, which would support most buildings, into the underlying osm-qa-tiles. While already technically possible, it greatly increases processing time and output size, so we're looking into other ways of doing it.

Here are our initial results:

command	minjur time	geojson size	tippecanoe time	mbtiles size	total time
minjur	1h14m	210 GB	2h22m	26 GB (25 gzip)	3h36m
minjur-mp	2h34m	329 GB	3h57m	64 GB (57 gzip)	6h31m