[OSM-talk] finding overlapping buildings

[Pierre Béland]

Hi Frederik, 
I tried with the area I provided as example in Bali. Interesting to learn that we can export a group like that to JOSM for editing / correcting.See this zone https://www.openstreetmap.org/#map=17/-8.447237794027034/115.40394650097596

As I said in a thread for Maproulette, QA tools such as MapRoulette or Osmose, while exporting data, should use a common  tag added to te changeset metadata to describe the Coordination QA tools used to spot problems and edit an area. I am not sure if only the comment is recognized actually. If so, a hashtag could refer to both osmose and the item with something like #Osmose-item-xxx where xxx describes the item.
See this JOSM ticket that address transfer of HOT TM tags https://josm.openstreetmap.de/ticket/10758and this HOT TM ticket https://github.com/hotosm/osm-tasking-manager2/issues/703

 
Pierre 
 

    Le mardi 28 novembre 2017 16:17:55 HNE, Frédéric Rodrigo <fred.rodrigo at gmail.com> a écrit :  
 
 You can use the export menu to load all the pinned objects into JOSM, by 
using the remote command.


Le 28/11/2017 à 22:11, john whelan a écrit :
> The problem is how do you fix them?  Having something directly in JOSM 
> is useful. They tend to appear in clusters so step one is find the 
> cluster.  Step two is sort the duplicates out.
>
> There really is some very poor mapping of buildings and this at least 
> identifies the ones that there should be no disagreement about whether 
> they should be deleted or not.
>
> One day we'll sort out what to do about the very badly mapped 
> buildings that at least two other mappers have referred to as junk but 
> that's another story.
>
> Cheerio John
>
> On 28 November 2017 at 15:46, Frédéric Rodrigo <fred.rodrigo at gmail.com 
> <mailto:fred.rodrigo at gmail.com>> wrote:
>
>    With Osmose you can also get only large building intersection by
>    filter on severity
>
>    http://osmose.openstreetmap.fr/en/map/#zoom=11⪫=49.9788&lon=8.3169&layer=Mapnik&overlays=FFFFFFFFFFFFFFFFFFFFT&item=0%2C8300&level=1%2C2&tags=&fixable=
>    <http://osmose.openstreetmap.fr/en/map/#zoom=11⪫=49.9788&lon=8.3169&layer=Mapnik&overlays=FFFFFFFFFFFFFFFFFFFFT&item=0%2C8300&level=1%2C2&tags=&fixable=>
>
>    Or addressee the class 2 only.
>    http://osmose.openstreetmap.fr/en/map/#item=0&class=2
>    <http://osmose.openstreetmap.fr/en/map/#item=0&class=2>
>
>
>    Le 22/11/2017 à 02:26, john whelan a écrit :
>
>        >Osmose has an 'overlapping building' option. Top of the list
>
>        I want something to feed into JOSM and not just any building
>        that overlaps by 5%.
>
>        Thanks John
>
>        On 21 November 2017 at 19:49, Dave F
>        <davefoxfac63 at btinternet.com
>        <mailto:davefoxfac63 at btinternet.com>
>        <mailto:davefoxfac63 at btinternet.com
>        <mailto:davefoxfac63 at btinternet.com>>> wrote:
>
>            Osmose has an 'overlapping building' option. Top of the list
>
>            Note: Some building are drawn on top of eachother to
>        produce 3D
>            rendering of multi-storey buildings.
>
>            DaveF
>
>
>
>            On 21/11/2017 23:16, john whelan wrote:
>
>                Can someone describe a method I can locate these in
>            JOSM.  I'm
>                not after crossing buildings but just those that are
>            mapped twice
>                so two buildings with 50% or more overlap.
>
>                Straight duplicates aren't a problem but ones that are
>            drawn
>                twice by two different mappers are.  Yes I know it
>            shouldn't
>                happen but it does.
>
>                Thanks John
>


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