Hi Pierre - that’s pretty awesome! 

I verified the data came like that from the source, which is kind of a bummer. 
I ran some processes on the layer to straighten the angles out, and it appears 
to have helped, 

The full and sample OSM files on GitHub have been updated.


Thx
-Jonah
> On Jun 19, 2019, at 12:58 PM, Pierre Béland <[email protected]> wrote:
> 
> Hi Jonah
> 
> I did analysis of your OSM source file as of 2019-06-12 and detected some 
> 15,500 buildings that deviate significantly from square angles buildings.  It 
> does not mean that they do not correspond to what is observed on imagery.  
> But with a ratio of 32% of buildings with irregular angles, it would be good 
> to look at these and see if they should be revised.
> 
> See Geojson visualisation on Github 
> https://github.com/opendatalabrdc/OQ_Analysis/blob/master/Geojson_Visualisation_Building_Polygons_with_Irregular_Geometry.md#2019-06-12-city-of-portsmouth-virginia-building-footprints--addresses
>  
> <https://github.com/opendatalabrdc/OQ_Analysis/blob/master/Geojson_Visualisation_Building_Polygons_with_Irregular_Geometry.md#2019-06-12-city-of-portsmouth-virginia-building-footprints--addresses>
> 
> I only answer to the import list, since I dont susbcribe to the other lists 
> plus avoid cross-posting .  
> 
>  
> Pierre 
> 
> 
> Le samedi 15 juin 2019 18 h 28 min 08 s UTC−4, Jonah Adkins 
> <[email protected]> a écrit :
> 
> 
> Hi Pierre, Thanks for taking a look.
> 
> The source data for this import is not AI derived - the state GIS office 
> (VGIN) collects datasets from each city/county in Virginia, then processes 
> them into a statewide dataset that is released (with a OSM compatible 
> license) on a quarterly basis.
> 
> Was there a particular area in the full or sample OSM files that looked bad?
> 
> Thx
> -Jonah

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