Individual items of playground=* and area=

[imagoiq]

Hi,

I would to clarify the usage of leisure=playground and playground=*. As stated in the wiki, it seems possible to tag some individual devices with an area, but there is a very explicit warning when I try to do it.
At the same time, this behaviour is flagged as an error on Osmose, so I opened a similar ticket: osm-fr/osmose-backend#1457 The error is a bit different: Osmose flag an area without certain tags as an error : https://github.com/osm-fr/osmose-backend/blob/master/plugins/TagFix_Area.py#L30

I'm a bit confuse and not sure what it's the appropriate way to tag them, and if it's a mistake on the schema or a personal one.

[matkoniecz]

it is kind of extreme nanomapping, but it does not seem wrong

[danieldegroot2]

From my time mapping them (correct it where needed).

playground / equipment
Line and area mapping of playground equipment is possible, but is mainly intended for the playground equipment itself -not the surface around it- and is usually used on structures, to detail the individual parts. It is still uncommon, as this is mostly done when aerial imagery has a high resolution.

Each item of play equipment is tagged as a node, way or area depending on its shape and size

Most pieces of equipment on their own I wouldn't map as way/area (including swing with just one seat).

Playground(s)...

• If they are inside a leisure=playground
  -- Individual surfaces around each piece of equipment can be mapped as an area area=yes + surface .
  -- Individual pieces of equipment can be mapped as a node playground.
• If it is a standalone piece of equipment on ie. some grass in a residential area, you can map it as you do in a playground, but without any leisure=playground area. [1]
• If they are inside a leisure=schoolyard (my personal choice)
  -- Individual surfaces around each piece(s) of equipment can be mapped as an area leisure=playground + surface.
  --- You may choose to map these as inners of the schoolyard, but a regular area is also ok.
  -- Individual pieces of equipment can be mapped as a node playground.

Sidenotes:

• leisure=playground overlapping/inside another leisure=playground is, at least technically, a duplicate (one object, one osm object(/tag))
• It is disputed to use playground on leisure=playground to indicate multiple pieces of equipment inside the area; it is unclear where the equipment is located -it is usually visible on imagery-, which does not add to the map.
  -- [1] playground to indicate a single piece of equipment is ok, but you could argue leisure=playground (when mapped as area) for this is redundant (and tagging for the renderer) and would have to be ideally named/signed (like with man_made=bridge being disputed).

[imagoiq]

Thanks for this complete explanation!

Line and area mapping of playground equipment is possible, but is mainly intended for the playground equipment itself

Ok It makes sense. By the way, do you know if there is a way to tag the surface only underneath?

[tyrasd]

the wrong warning should be fixed with f2629f5

[danieldegroot2]

do you know if there is a way to tag the surface only underneath?

Nah, make an area for the general surface around the piece of equipment, as I mentioned. If you want to go as far as tag the surface underneath the seats of the seesaw, yea you can make little areas for that too. Again, might want to make it a multipolygon because it's an area inside another area. But yeah, that's another way of micromapping it further.