[Talk-ca] Toronto building import

[Nate Wessel]

Thanks for the offer Daniel! However I've already processed the data 
through my own, similar workflow. I did a building import a couple years 
ago so I had everything set up on my computer already anyway.

I originally tried dividing the tasks into rectangles so that they would 
better match a bounding-box download in JOSM. I didn't like the results 
so much though; if I kept the tasks around the same size (in terms of 
buildings), the size and shape of the tasks varied a bit too much for my 
comfort, with some tasks getting very large ( as in 
http://tasks.osmcanada.ca/project/168 ).

I found that irregular task shapes didn't cause any trouble for the last 
import I worked on, though they did make validation a bit harder. For 
better or worse though, I've observed that not much task-level 
validation actually happens in projects like this, if all goes well and 
the data was good in the first place.

Best,

Nate Wessel, PhD
Planner, Cartographer, Transport Nerd
NateWessel.com <https://www.natewessel.com>

On 2020-04-04 9:21 a.m., Daniel @jfd553 wrote:
>
> I am about to complete the Squamish test area and so far the new ODB 
> import procedure seems adequate. So, if you require the data to be 
> pre-processed over the selected area just let me know.
>
> However, I would suggest using squares instead of various polygons to 
> define tiles because it is simpler to manage OSM data when downloading 
> it in JOSM.
>
> Best,
>
> Daniel
>
> *From:*Nate Wessel [mailto:bike756 at gmail.com]
> *Sent:* Saturday, April 04, 2020 00:57
> *To:* talk-ca at openstreetmap.org
> *Subject:* [Talk-ca] Toronto building import
>
> Hi all,
>
> I've been spending some time today working on restarting the Toronto 
> building import effort which seems to have stalled a while back (I got 
> distracted, sorry!).
>
> What I'm proposing to do is essentially just to finish off the 
> building import that was started over a year ago in Ontario, though 
> just within the bounds of the City of Toronto. That larger import, at 
> the time, never reached the central parts of the city and there are 
> about 55,000 buildings that can still easily be imported from the ODB.
>
> There is an outline of the proposal here ( 
> https://wiki.openstreetmap.org/wiki/Toronto_building_import 
> <https://wiki.openstreetmap.org/wiki/Toronto_building_import> )
>
> And I've uploaded some task-level OSM data to GitHub ( 
> https://github.com/Nate-Wessel/TO-building-import/tree/master/tasks ) 
> if anyone cares to inspect it.
>
> Hopefully this import process will address most of the concerns raised 
> about the initial import, including those I raised myself ;-)
>
> Anyway, this email is just to notify y'all that I've been working on 
> this again and to start the necessary discussions and get any 
> feedback. I'd love to begin to move forward in the next couple of 
> weeks if there is support for this effort here, and on the imports 
> mailing list. Please let me know what you think!
>
> Best,
>
> -- 
>
> Nate Wessel, PhD
> Planner, Cartographer, Transport Nerd
> NateWessel.com <https://www.natewessel.com>
>
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