I have just come across a batch 13 and 16 march 2017 with two mappers mapping the same buildings. I have deleted some duplicates but I suspect there are more there.
Cheerio John On 10 April 2017 at 17:50, john whelan <[email protected]> wrote: > I've been looking at one section of Africa and tagging untagged ways and > area=yes ways. It's a very small % of the entire continent. > > So far in the last couple of days I've tagged nearly 800 buildings and I > have another 350 untagged ways to go through. > > Looking at the mappers and the profiles many of these seem to be from a > number of recent building only projects. Now these should be some of the > simplest things to map. > > Missing 1,000 buildings in this area alone by not tagging them to me is > significant. It might not be to others. > > My estimate is of the buildings that are mapped 30% are not square or the > building image and the mapping are different in size. This is a > conservative estimate. > > To save my fingers and wading through the to_do list could a bit more > effort be made on the JOSM building_tool plugin front. Jo / Polygot has a > recipe for running it from a USB stick. It is simple to use and very > difficult to misstag. > > You get more buildings out of the mappers and best of all you don't get 45 > tiles on one project marked done as I've seen by a mapper who had mapped > 186 buildings but managed not to tag them. > > This means the project data isn't reliable and in my experience end users > like reliability. I'm not sure why, my programmers always thought that the > speed the programs ran at was more important. > > Cheerio John >
_______________________________________________ HOT mailing list [email protected] https://lists.openstreetmap.org/listinfo/hot
