include spacial urban amenities in 'built-up-upper-lowzoom'

[polarbearing]

In mid and low zoom, currently the following landuses are rendered in gray (built-up-upper-lowzoom #c0c0c0, built-up-lower-lowzoom 11-12 #aaaaaa):

• landuse=residential
• landuse=retail, amenity=marketplace
• landuse=industrial
• landuse=commercial

Spacial amenities (i.e. campuses) and other landuses are often left without surrounding landuse tag, thus they leave holes in the midzoom areas that would be considered as built-up.
Examples (currently rendered from):

• landuse=garages (>=13) no color for garages on 12 zoom #2988
• landuse=religious (>=13)
• landuse=allotments (>=10)
• amenity=hospital/clinic/university/college/school/kindergarten/community_centre/social_facility (>=10 like residential, >=12 societal-yellow) color of amenity=school on 9-12 zoom #3004
• amenity=parking/bicycle/motorcycle parking (>=10)

To avoid the holes, these features should be assigned the built-up colour in the mid and zoom levels.

[kocio-pl]

It's a follow up to #2654 (in practice that's just fine tuning this code).

Examples of the problem:

• locations:

  • http://www.openstreetmap.org/way/304978663#map=12/51.5747/46.0717
  • http://www.openstreetmap.org/?mlat=53.4629&mlon=-2.2316#map=12/53.4629/-2.2318

• why it's worth fixing (see color of amenity=school on 9-12 zoom #3004 (comment)) - z12 noise:
  

[drmx]

I ask you to pay attention to landuse=railway http://www.openstreetmap.org/way/430173017#map=14/51.6062/45.9457&layers=D
its color does not change on 12 zoom

[matkoniecz]

Your intended link is probably http://www.openstreetmap.org/way/430173017#map=14/51.6062/45.9457

[drmx]

yes. I confused. thank you

[Tomasz-W]

@kocio-pl Isn't it resolved by #3466 and other PRs?

[kocio-pl]

Are you sure all such problems have been fixed?

[Tomasz-W]

As amenity areas may be so big that they are visible on zoom levels lower than z13, and allotments should be treated as natural areas, I'm not sure if rest from the objects mentioned above are worth changes because they are usually too small to see them on <z13.