Render building=greenhouse differently

[matthijsmelissen]

Most buildings are about the same, but greenhouses look completely different, both, from on the ground and from aerial pictures.

But when you're on a place where there are a lot of greenhouses on the ground, the map looks just the same as when you're in a factory.

Currently, there are over 15.000 objects tagged with "building=greenhouse".

So I would propose a different rendering for that. I suggest a very pale version of the current building colour would do. Something like #EBDDDB (even paler than houses)

See also https://trac.openstreetmap.org/ticket/4654

[matthijsmelissen]

Let's wait with this until #565 has been accepted.

[matkoniecz]

I would be against yet another rendering type for houses.

[dieterdreist]

2014-09-29 14:41 GMT+02:00 Mateusz Konieczny notifications@github.com:

I would be against yet another rendering type for houses.

this is not about houses but about greenhouses.

[matkoniecz]

this is not about houses but about greenhouses.

Sorry, I should phrase it as "I would be against yet another rendering type for building=* elements"

[dieterdreist]

2014-09-29 14:51 GMT+02:00 Mateusz Konieczny notifications@github.com:

Sorry, I should phrase it as "I would be against yet another rendering type for building=* elements"

I think that these structures do merit a different rendering, because they are indeed not "buildings" in literal terms, but light structures. I see a derise to be able to distinguish them from actual buildings to improve the readability of the map.

[ffes]

http://osm.org/go/0En~7hKU- is a good example of a lot of greenhouses in a relative small area.

[matthijsmelissen]

I would be against yet another rendering type for houses.

Does this area change your opinion? See also this aerial photo.

Edit: what @ffes says.

[matkoniecz]

A better image of this location: http://www.alamy.com/stock-photo-CYFBFN/The-Netherlands-Monster-View-on-village-and-glass-houses-Aerial.html

This example is impressive. Now I have no clear opinion on this topic.

[dieterdreist]

Il giorno 29/set/2014, alle ore 15:19, Mateusz Konieczny notifications@github.com ha scritto:

This example is impressive.

there are similar areas in Spain around Almeria=

[mboeringa]

How I currently render it. Scale is unfortunately not exactly the same, but close. I think there is room for some dedicated renderings in the building class. Left Standard, right ArcGIS Renderer for OpenStreetMap. Click to enlarge:

[dieterdreist]

sent from a phone

Am 15.06.2015 um 22:52 schrieb mboeringa notifications@github.com:

I think there is room for some dedicated renderings in the building class.

I support this. Greenhouses are too dominant currently.

[kocio-pl]

So how do you think they should look like?

[ffes]

There are two options.

The red used on the example above looks good to me. That would be my preference.

Otherwise a type of green. These things aren't called greenhouses for nothing.

[kocio-pl]

We use green for different natural/leisure purposes.

I don't see red - it's violet for me and we use it for industrial landuse.

I missed Something like #EBDDDB (even paler than houses). This sounds reasonable for me. In fact it looks like a subset of https://github.com/gravitystorm/openstreetmap-carto/issues/1207, which is currently closed, but there was no strong opinion against it, so I would go this way for all minor buildings.

[HolgerJeromin]

What about an greenish gray as a mixture of nature and building?

[kocio-pl]

I like the idea of having just minor, normal and major building colors (and roofs, but it's not planned to have a separate color), and not being too specific.

I'm not sure how would this look like, but I would probably test it too, out of curiosity.

[kocio-pl]

EBDDDB doesn't work - it looks like retail area for me:

However lightening standard building color a bit looks OK:

I've made a branch to easily add more minor buildings - like garages or roofs maybe.

[polarbearing]

lightening standard building color ... add more minor buildings - like garages or roofs

works for me, and I like the idea of light buildings in general, it will encourage more people to be more specific than building=yes.

[kocio-pl]

The area from this comment on z13:

Before

After

[kocio-pl]

I have no idea how to solve this in the other way than the one that was rejected, so I'm closing it now. The issue can be reopened when somebody will come with another idea.

[jeisenbe]

Update: buildings are no longer rendered at z13, so the key zoom level for the problem area in the comment is now z14.

We could still consider rendering greenhouses with transparence, because they are literally transparent. This wouldn't normally be a good idea with any other building type.

[kocio-pl]

Why render them in a special way instead of treating them like all the minor buildings (no matter how should they be rendered)?

[polarbearing]

I'd be against transparency as in the end it is just a method of mixing colours, and there is nothing particular that would need to be seen "through" the transparency.

[mboeringa]

I have no idea how to solve this in the other way than the one that was rejected, so I'm closing it now. The issue can be reopened when somebody will come with another idea.

@kocio-pl I actually think the arguments to close your proposal with lightening the buildings were weak, and @matthijsmelissen just said "I don't think the proposed solution is the best solution for the given problem." without giving real arguments to close it.

As I argued in the other thread, there are more distinguishing features of greenhouses that make them stand out from other (minor) buildings: generally big, rectangular, outside residential areas, usually densely packed.

Hence I still think that simply rendering them a bit lighter as you proposed and treat them like other minor buildings, is a perfectly valid choice. I would re-open it if I were you.

[kocio-pl]

Thanks. I don't feel the need, since there is current separate general discussion about minor buildings rendering (#3679) and this case is not forgotten.

[imagico]

Reopening because this was closed neither as wontfix/declined nor duplicate nor as solved.

[imagico]

Note the ac-style implements a differentiated rendering of building=greenhouse at the highest zoom levels: https://github.com/gravitystorm/openstreetmap-carto/commit/7e995318fd9e765f3082274806f1ad7e88e65b34