[OSM-talk] Barrier=block areas

Tomasz Wójcik tomox3 at wp.pl
Thu Aug 16 16:57:49 UTC 2018


An use case for allow mapping barrier=block as asreas is a better 
visualisation of a landcoverage. Mapping aeral objects as a nodes makes 
the map a little bit lied.

------ Wiadomość oryginalna ------
Od: "Philip Barnes" <phil w trigpoint.me.uk>
Do: talk w openstreetmap.org; "David Fox" <davefoxfac63 w btinternet.com>; 
"Tomasz Wójcik" <tomox3 w wp.pl>
Data: 16.08.2018 10:05:11
Temat: Re: [OSM-talk] Barrier=block areas

>Hedges can certainly be areas, some can be a few metres thick.
>
>A common mapping scenario is a thick hedge and a stile at each side. 
>The only way to represent this is to map as an area and map the stiles 
>as nodes connected to the outline.
>
>Phil (trigpoint)
>
>On 16 August 2018 01:14:49 BST, David Fox <davefoxfac63 w btinternet.com> 
>wrote:
>>Barriers, by definition, provide some level of restriction. Without 
>>attaching them in some form it becomes hard for routers to account for 
>>them.
>>Hedges and walls are linear in nature, not an area.
>>
>>
>>
>>On 15 August 2018, at 19:51, Tomasz Wójcik <tomox3 w wp.pl> wrote:
>>
>>
>>Currently, barrier=block is not allowed to be mapped as an area. As 
>>blocks can be big enough to map them as areas, I think it should be 
>>allowed, the same as in barrier=wall or barrier=hedge. Anyway, 
>>currently we have 3,9k of barrier=block areas in database.
>>
>>https://wiki.openstreetmap.org/wiki/Tag%3Abarrier%3Dblock
>>
>>Block examples:
>>http://www.concrete-barriers-blocks.co.uk/up/concrete-barrier-type-m-block-photo.gif
>>http://cdn1.codziennypoznan.pl/201606241325/pub/img/full/71/1c58d-a9.jpg
>>
>>Barriers with mapping as area allowed
>>https://wiki.openstreetmap.org/wiki/Tag:barrier=wall
>>https://wiki.openstreetmap.org/wiki/Tag%3Abarrier%3Dhedge
>
>--
>Sent from my Android device with K-9 Mail. Please excuse my brevity.
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