mapcomplete/Docs/Layers/walls_and_buildings.md

[//]: # (WARNING: this file is automatically generated. Please find the sources at the bottom and edit those sources)

 walls_and_buildings 
=====================





Special builtin layer providing all walls and buildings. This layer is useful in presets for objects which can be placed against walls (e.g. AEDs, postboxes, entrances, addresses, surveillance cameras, …). This layer is invisible by default and not toggleable by the user.






  - This layer is shown at zoomlevel **18** and higher
  - This layer is not visible by default and must be enabled in the filter by the user. 
  - This layer is not visible by default and the visibility cannot be toggled, effectively resulting in a fully hidden layer. This can be useful, e.g. to calculate some metatags. If you want to render this layer (e.g. for debugging), enable it by setting the URL-parameter layer-<id>=true
  - Not visible in the layer selection by default. If you want to make this layer toggable, override `name`
  - Not rendered on the map by default. If you want to rendering this on the map, override `mapRenderings`
  - This layer will automatically load  [entrance](./entrance.md)  into the layout as it depends on it:  a calculated tag loads features from this layer (calculatedTag[0] which calculates the value for _entrance_properties)
  - This layer is needed as dependency for layer [advertising](#advertising)
  - This layer is needed as dependency for layer [artwork](#artwork)
  - This layer is needed as dependency for layer [clock](#clock)
  - This layer is needed as dependency for layer [defibrillator](#defibrillator)
  - This layer is needed as dependency for layer [entrance](#entrance)
  - This layer is needed as dependency for layer [surveillance_camera](#surveillance_camera)
  - This layer is needed as dependency for layer [facadegardens](#facadegardens)




#### Themes using this layer 





  - [advertising](https://mapcomplete.org/advertising)
  - [aed](https://mapcomplete.org/aed)
  - [artwork](https://mapcomplete.org/artwork)
  - [clock](https://mapcomplete.org/clock)
  - [facadegardens](https://mapcomplete.org/facadegardens)
  - [indoors](https://mapcomplete.org/indoors)
  - [onwheels](https://mapcomplete.org/onwheels)
  - [personal](https://mapcomplete.org/personal)
  - [surveillance](https://mapcomplete.org/surveillance)




 Basic tags for this layer 
---------------------------



Elements must match **any** of the following expressions:

 - <a href='https://wiki.openstreetmap.org/wiki/Key:barrier' target='_blank'>barrier</a>=<a href='https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dwall' target='_blank'>wall</a>
 - building~.+

[Execute on overpass](http://overpass-turbo.eu/?Q=%5Bout%3Ajson%5D%5Btimeout%3A90%5D%3B%28%20%20%20%20nwr%5B%22barrier%22%3D%22wall%22%5D%28%7B%7Bbbox%7D%7D%29%3B%0A%20%20%20%20nwr%5B%22building%22%5D%28%7B%7Bbbox%7D%7D%29%3B%0A%29%3Bout%20body%3B%3E%3Bout%20skel%20qt%3B)



 Supported attributes 
----------------------



Warning: 

this quick overview is incomplete



attribute | type | values which are supported by this layer
----------- | ------ | ------------------------------------------
[<img src='https://mapcomplete.org/assets/svg/statistics.svg' height='18px'>](https://taginfo.openstreetmap.org/keys/id#values) [id](https://wiki.openstreetmap.org/wiki/Key:id) | Multiple choice | 




### just_created 



This element shows a 'thank you' that the contributor has recently created this element

This tagrendering has no question and is thus read-only





  - *You just created this element! Thanks for sharing this info with the world and helping people worldwide.*  corresponds with  id~.+


This tagrendering is only visible in the popup if the following condition is met: `_last_edit:passed_time<300 & (_version_number= | <a href='https://wiki.openstreetmap.org/wiki/Key:_version_number' target='_blank'>_version_number</a>=<a href='https://wiki.openstreetmap.org/wiki/Tag:_version_number%3D1' target='_blank'>1</a>) & _backend~.+`

This tagrendering has labels  `added_by_default`



### entrance_info 



This tagrendering has no question and is thus read-only





  - *No entrance has been marked*  corresponds with  <a href='https://wiki.openstreetmap.org/wiki/Key:_entrances_count' target='_blank'>_entrances_count</a>=<a href='https://wiki.openstreetmap.org/wiki/Tag:_entrances_count%3D0' target='_blank'>0</a>
  - *None of the {_entrance_count} entrances have width information yet*  corresponds with  _entrances_count_without_width=_entrances_count




### biggest_width 



This tagrendering has no question and is thus read-only



This tagrendering is only visible in the popup if the following condition is met: `_biggest_width_id~.+`



### leftover-questions 



This tagrendering has no question and is thus read-only





### minimap 



Shows a small map with the feature. Added by default to every popup

This tagrendering has no question and is thus read-only





### last_edit 



Gives some metainfo about the last edit and who did edit it - rendering only

This tagrendering has no question and is thus read-only



This tagrendering is only visible in the popup if the following condition is met: `_last_edit:changeset~.+ & _last_edit:contributor~.+`

This tagrendering has labels  `added_by_default`



### favourite_status 



This tagrendering has no question and is thus read-only





### qr_code 



This tagrendering has no question and is thus read-only



This tagrendering has labels  `added_by_default`



### share 



This tagrendering has no question and is thus read-only



This tagrendering has labels  `added_by_default`



### all-tags 



This tagrendering has no question and is thus read-only

 

This document is autogenerated from [assets/layers/walls_and_buildings/walls_and_buildings.json](https://github.com/pietervdvn/MapComplete/blob/develop/assets/layers/walls_and_buildings/walls_and_buildings.json)