Had a quick look at the location. There all sorts of alignment issues. But it is difficult to find a prevailing type of problem. The discrepencies go in all directions. The terrain is relatively flat, so the typical parallax error of previous versions of Bing imagery can be excluded. With a bit of fantasy I could recognise the same problem that we had here in Italy: until a couple of years back Bing imagery had a systematic alignment issue (in addition to the parallax problem in steep terrain) of a couple of meters. The present version of Bing imagery (in northern Italy) now aligns well with Strava Heatmaps and can be trusted. It looks that also in the area you mention the actual Bing imagery is reasonably well aligned road-wise with Strava Heatmaps for riding and walking. So my advice would be to not try realigning Bing imagery. Building footprints at Petra are off in all kind of directions. The worst error I can see is the pier which is off, in comparison with Strava walking heatmap by around 10 meters in direction NNE.
On Mon, 5 May 2025, 13:15 , <talk-requ...@openstreetmap.org> wrote: > Send talk mailing list submissions to > talk@openstreetmap.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.openstreetmap.org/listinfo/talk > or, via email, send a message with subject or body 'help' to > talk-requ...@openstreetmap.org > > You can reach the person managing the list at > talk-ow...@openstreetmap.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of talk digest..." > > > Today's Topics: > > 1. weeklyOSM #771 24/04/2025-30/04/2025 (weeklyteam) > 2. A newbie starting mapping (Ernst) > 3. Re: A newbie starting mapping (Erwin Olario) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 4 May 2025 10:53:55 +0000 (UTC) > From: weeklyteam <li...@weeklyosm.eu> > To: talk@openstreetmap.org > Subject: [OSM-talk] weeklyOSM #771 24/04/2025-30/04/2025 > Message-ID: <20250504105355.763627d...@weeklyosm.eu> > Content-Type: text/plain; charset="utf-8" > > The weekly round-up of OSM news, issue # 771, > is now available online in English, giving as always a summary of a lot of > things happening in the openstreetmap world: > > https://www.weeklyosm.eu/archives/17848 > > Enjoy! > > Did you know that you can also submit messages for the weeklyOSM? Just log > in to https://osmbc.openstreetmap.de/login with your OSM account. Read > more about how to write a post here: > https://www.weeklyosm.eu/this-news-should-be-in-weeklyosm > > weeklyOSM? > who: https://wiki.openstreetmap.org/wiki/WeeklyOSM#Available_Languages > where?: > https://umap.openstreetmap.fr/en/map/weeklyosm-is-currently-produced-in_56718#2/8.6/108.3 > > ------------------------------ > > Message: 2 > Date: Mon, 05 May 2025 12:30:54 +0300 > From: Ernst <ernst.te.br...@xs4all.nl> > To: talk@openstreetmap.org > Subject: [OSM-talk] A newbie starting mapping > Message-ID: <1e76074e-8081-4e7c-8e53-cdb5a9fc4...@xs4all.nl> > Content-Type: text/plain; charset=utf-8 > > Hello, > I am Ernst (de_pelgrim) a Dutch guy always interested in mapping, but > never started the right way. Now I am doing some reading about mapping and > planning to practice mapping during my holiday in Lesbos Greece. > After walking around Petra (Lesbos) looking at what could be added I found > a lot of mapping work that can be done. > But my first remark is that the building drawn not always match the > location on bing satellite images and I am not able to shift the satellite > images to correct this. So is Bing not a good reference image or was an > other reference image used, which one? > Also a pier is about 10mtr off and has no connection. > I'm using Android based tools like osm go, every door and vespucci, no > desktop available at my holiday address. > I hope someone can help me start, by explaining what's best to do. > Best regards, > Ernst. > -- > Sent from my OnePlus 5 with K-9 Mail. > > > > ------------------------------ > > Message: 3 > Date: Mon, 5 May 2025 17:53:59 +0800 > From: Erwin Olario <gov...@gmail.com> > To: Ernst <ernst.te.br...@xs4all.nl> > Cc: talk@openstreetmap.org > Subject: Re: [OSM-talk] A newbie starting mapping > Message-ID: > < > capmgdl9kspgf-aif6rizd2uydodusomnhxsu0qfwyo7fcx+...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hello! Welcome to OpenStreetMap, and thank you for your contributions. > > Among the editors you've mentioned you're using, only Vespucci has the > option of re-aligning the imagery. See: > https://vespucci.io/help/en/Aligning%20background%20imagery/ > > The ideal way of adjusting imagery is to align it with many (many) SatNav > tracks, and Strava is often used for this, but this could get tedious if > you need to realign dense neighborhoods. > > The practical way is to adjust the imagery to whatever is the alignment in > use in the area you're editing. > > Good luck with your mapping efforts, and don't forget to have fun! > > *Erwin Olario* > - - - - - - - - - - - - - - - - - - - > ? email: go...@omg.lol > > > On Mon, May 5, 2025 at 5:36?PM Ernst <ernst.te.br...@xs4all.nl> wrote: > > > Hello, > > I am Ernst (de_pelgrim) a Dutch guy always interested in mapping, but > > never started the right way. Now I am doing some reading about mapping > and > > planning to practice mapping during my holiday in Lesbos Greece. > > After walking around Petra (Lesbos) looking at what could be added I > found > > a lot of mapping work that can be done. > > But my first remark is that the building drawn not always match the > > location on bing satellite images and I am not able to shift the > satellite > > images to correct this. So is Bing not a good reference image or was an > > other reference image used, which one? > > Also a pier is about 10mtr off and has no connection. > > I'm using Android based tools like osm go, every door and vespucci, no > > desktop available at my holiday address. > > I hope someone can help me start, by explaining what's best to do. > > Best regards, > > Ernst. > > -- > > Sent from my OnePlus 5 with K-9 Mail. > > > > _______________________________________________ > > talk mailing list > > talk@openstreetmap.org > > https://lists.openstreetmap.org/listinfo/talk > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.openstreetmap.org/pipermail/talk/attachments/20250505/2ce724d1/attachment-0001.htm > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk > > > ------------------------------ > > End of talk Digest, Vol 249, Issue 2 > ************************************ >
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