[OSM-talk] finding overlapping buildings

[john whelan]

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>
wrote:

> With Osmose you can also get only large building intersection by filter on
> severity
>
> http://osmose.openstreetmap.fr/en/map/#zoom=11&lat=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
>
>
> 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>> 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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