[Talk-us] Available Building Footprints Date: March 28, 2017 at 2:06:33 AM PDT

Denis Carriere carriere.denis at gmail.com
Tue Mar 28 20:04:11 UTC 2017


Quick reply to Frederick's comment.

Our (2nd Ottawa building import) does not remove any existing OSM data.

Hence why we added the QA-Tiles to prevent having the "new" imported data
overlap on existing OSM data. That way we don't have any conflicts with new
& existing data.

I do agree with Frederick on this: Whenever anyone starts importing
overlapping data into OSM, it can be a lot of work doing a good job for a
"new" mapper. By removing any overlapping data, this prevents a lot of
these possible human caused errors.

+1 Frederick, you do offer good feedback (even if we might disagree on
certain vues & opinions).

*~~~~~~*
*Denis Carriere*

On Tue, Mar 28, 2017 at 1:43 PM, Frederik Ramm <frederik at remote.org> wrote:

> Hi,
>
> On 03/28/2017 05:48 PM, Denis Carriere wrote:
> > Instead of having tons of different people trying to attempt loading all
> > of these 8 Million buildings,
>
> [...]
>
> > After all the "hard work" is done.. you can simply add those
> > small chunks of data with JOSM using any Tasking Manager
>
> This is where I have violently disagreed with Denis and his team in the
> past and still do; in my eyes, the *hard* work starts once the data has
> been prepared and converted and set up, because *then* I want people
> familiar with the area to load the data, compare it with what's there,
> NOT blindly delete what's there, cross-check with aerial imagery and so on.
>
> In my eyes, all the data preparation is peanuts, and the real value is
> added to the import at the upload stage. This is where it is decided
> whether this import will be successful or rubbish. A sad example for a
> rubbish import is almost all of CanVec, which tends to be uploaded by
> people who think that the "hard work" is already done by those who
> prepared the data, and that all that is left for them is hitting the
> upload button in JOSM.
>
> While a task manager can help, it tends to invite contributions by
> people who are not at all local to the area just to "colour it green".
> This is undesirable in my opinion.
>
> Bye
> Frederik
>
> --
> Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"
>
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