John, no worries, we'll handle it. Appreciate your input. But given that the buildings are not only shifted, but often incorrect, I think it a better option to have them adjusted in real time (even with the potential issues that raises). I've updated the task instructions to indicate this. I also don't expect there to be a massive number of volunteers, so we'll keep an eye on the work as it progresses and determine if we need to change the approach.
------------------ Joshua S Campbell Geographer, PhD On Wed, Oct 7, 2015 at 6:58 PM, john whelan <[email protected]> wrote: > So what we are saying then is the Bing imagery is fine but the many of the > existing buildings do not align to the Bing imagery for one reason or > another. My concerns are new mappers will find this confusing and the > effort in moving each building individually by individual mappers is to put > it mildly a waste of resources. > > If someone who knows what they are doing pulls down the entire area into > JOSM they could select each mappers buildings in turn and move them into > place on the Bing imagery. Yes I could do it but I have a batch of some > twenty tiles to validate on a different project that I feel a greater > commitment to. Besides that one of my financial institutions made a > mistake today which involved me going across town to sort it and and I'm > still grumpy as you may have noticed. Could someone else take the > responsibility to line up the existing buildings please? > > Thanks > > Cheerio John > > On 7 October 2015 at 18:48, Blake Girardot <[email protected]> wrote: > >> >> In looking at the osm gps traces and strava gps data, the current bing >> imagery looks quite well aligned to me. >> >> cheers, >> blake >> >> On 10/8/2015 12:20 AM, john whelan wrote: >> >>> I think the issue is how can we make this easy for new mappers. You can >>> select multiple buildings in JOSM by downloading the area then select >>> buildings, then select an author within the selection then move all the >>> buildings by that author at once. It's not complicated just a pain to >>> do if some of the buildings have been corrected already. >>> >>> Sometimes in OSM its less work to blast everything that is there >>> checking the tags first to see its only buildings without additional >>> tags then remap than it is to clean up each building. However that >>> approach is generally frowned on in OSM. >>> >>> May I suggest you freeze this project for the moment and get someone to >>> nudge the existing buildings into place then open it up again. >>> >>> I'm not trying to pour cold water on the project but trying to head off >>> a potential mess. >>> >>> Cheerio John >>> >>> On 7 October 2015 at 16:28, Joshua Campbell <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> John, >>> >>> In reviewing the existing building data, you are correct it is >>> shifted. However, the data does not seem to be very accurate. >>> >>> In this situation, I'm wondering it makes more sense to >>> double-check, correct, and update that existing data, rather than >>> try to bulk shift it (which I've never done). But I'm open to >>> suggestions on the best way forward. >>> >>> >From the imagery perspective, the Bing Imagery analyzer indicates >>> the imagery is from May 2013. The DigitalGlobe archive shows a lot >>> of collection in that area in May 2013, but one scene in particular >>> (Catalog ID: 1030010022C8C400) is quite good. If this is the scene >>> in Bing, then I'm inclined to think the imagery is spatially correct >>> and serves as a good base to map from. >>> >>> Regards, >>> Josh >>> >>> >>> >>> On Tue, Oct 6, 2015 at 12:48 PM, john whelan <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Can some one double check the imagery, many buildings appear to >>> be already mapped but are displaced from the imagery. Perhaps >>> some one could do a bulk move of the existing buildings? >>> >>> http://tasks.hotosm.org/project/1235#task/187 >>> >>> Thanks John >>> >>> On 6 October 2015 at 12:20, Joshua Campbell >>> <[email protected] <mailto:[email protected]>> >>> wrote: >>> >>> All, >>> >>> Just wanted to announce the creation of a new mapping task >>> in the Kyrgyz Republic focused on seismic risk assessment >>> (http://tasks.hotosm.org/project/1235). The project is >>> funded by the Global Facility for Disaster Reduction and >>> Recovery, managed by World Bank and implemented by ARUP (and >>> partners) and includes seismic risk modeling to better >>> understand and manage earthquake risks. >>> >>> The unique element to this task is that the resulting OSM >>> data will be directly integrated into a seismic risk model >>> which will be used by the Kyrgyz Republic Government for >>> decision making on risk reduction and preparedness. >>> Additionally the OSM building data will be assessed on the >>> ground and combined with a unique "streetview" type of >>> imagery data. We hope that some of you can help out with the >>> building mapping for this task, and help us test the >>> methodological advancement of using OSM data for risk >>> assessment. >>> >>> Regards, >>> Josh >>> >>> ------------------ >>> Joshua S Campbell PhD >>> Senior Disaster Risk Management Specialist >>> Innovation Lab >>> World Bank GFDRR >>> >>> >>> _______________________________________________ >>> HOT mailing list >>> [email protected] <mailto:[email protected]> >>> https://lists.openstreetmap.org/listinfo/hot >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> HOT mailing list >>> [email protected] >>> https://lists.openstreetmap.org/listinfo/hot >>> >>> >
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