On Mon, Feb 27, 2017 at 11:36 AM, Jo <winfi...@gmail.com> wrote: > If you use 'w' in JOSM there is hardly ever a need to delete user's > contributions. It's really easy to drag the corners where they need to be, > then finish of with 'q' to square the building. > > Polyglot
This is a good tip, I forgot about this one for fixing up mapping. If I do feel the need to re-map from scratch, I do it on a blank layer, then merge the layer with the existing mapping layer, then use Replace Geometry for each building pair (old and new). I estimate it takes only about 10% longer than just totally re-mapping from scratch, but that is worth it to me to keep the history and original mapper's contribution. Video demonstration of that process: https://youtu.be/Kv5AOmX8M9g Thanks again Polyglot for reminding us about Improve Way for improving building mapping. Cheers Blake > 2017-02-26 20:00 GMT+01:00 Russell Deffner <russell.deff...@hotosm.org>: >> >> On this topic, there has been concern over validators doing so much >> deletion of recently mapped objects. This triggers a few monitoring sites >> that watch for 'suspicious changesets'; it doesn't mean much in the >> immediate, but thinking longer term for the OSM project, those algorithms >> could be used for automatic warnings or blocks. I think no matter what, >> we're always going to be dealing with poor mapping, so we should also look >> at some best practices/rules of thumb for when to delete versus improve a >> previously mapped feature. Although I do find myself deleting and >> re-drawing sometimes, I try to minimize that as there is something to >> preserving the original mappers contribution. This can also be an issue for >> trying to calculate mappers contributions for a mapathon or project if a >> validator unnecessarily deletes the objects. >> >> To quickly touch on project creation; I think roads and >> settlements/residential areas go well together - they both should be done >> with larger task squares than for building projects, but not sure it matters >> too much which one comes first, but for disaster response as an example, I >> would think roads and settlements are first priority followed by buildings. >> >> Happy Mapping, >> =Russ >> >> -----Original Message----- >> From: Andrew Buck [mailto:andrew.r.b...@gmail.com] >> Sent: Sunday, February 26, 2017 10:20 AM >> To: hot@openstreetmap.org >> Subject: Re: [HOT] Could we get more out of our mappers by asking for >> less? >> >> > I think this is a different conversation, I would prefer mappers take a >> > little more time and care, some buildings I've seen mapped have little >> > relationship to the size or shape of the building. >> > >> > Cheerio John >> >> I agree on this. Especially with respect to buildings. Roads are >> fairly easy to add refinements to by doing them one at a time and using >> the replace geometry tool in JOSM, however poorly mapped buildings take >> longer to clean up than simply deleting them and mapping them fresh. >> >> I would rather see a user add 10 buildings that are high quality then >> 100 or even 1000 that have to be remapped by someone else. Having to >> map something that has already been mapped poorly by someone else is >> really disheartening. On the one hand you spend your whole time mapping >> thinking about how your work is duplicating that of someone else, and on >> the other hand you feel bad about removing their contribution from the >> database. So you get hit with it on both fronts. >> >> -AndrewBuck >> >> >> >> >> _______________________________________________ >> HOT mailing list >> HOT@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/hot > > > > _______________________________________________ > HOT mailing list > HOT@openstreetmap.org > https://lists.openstreetmap.org/listinfo/hot > -- ---------------------------------------------------- Blake Girardot Humanitarian OpenStreetMap Team, TM3 Project Manager skype: jblakegirardot HOT Core Team Contact: i...@hotosm.org Live OSM Mapper-Support channel - https://hotosm-slack.herokuapp.com/ BE A PART OF HOT'S MICRO GRANTS: https://donate.hotosm.org/ _______________________________________________ HOT mailing list HOT@openstreetmap.org https://lists.openstreetmap.org/listinfo/hot