[Talk-ca] [Imports] Ottawa, Canada Tree Import

James james2432 at gmail.com
Wed Jun 28 15:32:14 UTC 2017

Well that analysis is incorrect in itself as others have stated, OSM can be
wrong. So a river bank, building, etc may not be properly drawn. So with
that being said what you are saying is the only viable way to accept an
import is to manually review every single item in the dataset.

On Wed, Jun 28, 2017 at 11:24 AM, Christoph Hormann <osm at imagico.de> wrote:

> On Wednesday 28 June 2017, Kyle Nuttall wrote:
> > [...]
> >
> > I guess the most likely scenario would be a tree that had been cut
> > down in the last 4 years and a building placed where the tree
> > previously was. In that case, using various imagery (Bing,
> > DigitalGlobe, OSC, Mapillary, etc.) would be used to verify that the
> > tree no longer stands and should be removed before adding it to the
> > map.
> All very well - but with 150k trees you need some plan how you do this,
> as said manually reviewing all 150k to find maybe a few hundred ones
> that require manual corrections is not a realistic plan.
> The usual approach would be to automatically analyze the data in
> combination with the OSM data to identify the cases with possible
> conflicts and then to manually review only those.
> If you don't feel confident in doing this yourself ask around if someone
> can help you with that (with all the '+1'-sayers this should not be a
> problem...)
> --
> Christoph Hormann
> http://www.imagico.de/
> _______________________________________________
> Imports mailing list
> Imports at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/imports

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