Hi, Tangentially, I often remap areas with poor mapping and use the replace geometry tool. I estimate it adds about 5% time to the over all remapping effort, which is totally acceptable for the benefits of careful redoing and saving of object history and I encourage folks to use that way where there is good hand crafted existing data where an import or improvement is going on.
Here is a tutorial video that shows how I work with it and if done right, why remapping and replace geometry are only about 5% more effort than deleting and re mapping from scratch. It also directly applies to the import conflation process and I use it anytime I am involved in that type of workflow. https://youtu.be/Kv5AOmX8M9g Respectfully, Blake On Fri, Jan 18, 2019 at 11:14 PM Nate Wessel <[email protected]> wrote: > > Hi Yaro, > > Thanks for marking this as on-hold in the tasking manager. I know I came in > like a wrecking ball and I really appreciate y'all holding things up while we > discuss. > > I'd be happy to validate data and help import the rest of central Toronto > once we're up and running again! I use the data in this area a lot in my > work... so I have a vested interest in keeping it at it's best :-) > > As to the conflation issue, one of the things we're doing in the other import > I'm working on is that we've essentially split it into two parts. First we're > importing buildings that don't conflict with OSM at all - this is the easy > part - and only later will we go in a bit more surgically and try to add tags > to existing ways and replace geometries with better data. We haven't started > that part yet, though I imagine it will be a real slog. IMO, it seems like a > lot to ask that editors do both things at once as these are really very > different tasks, especially given the size of the tasks here. > > I wonder if you'd have any interest in a similar separation of tasks for this > import? I think one of the benefits is that less experienced mappers can get > their hands dirty on the easier new-data-import part, without having to be > expert on which geometry is better, how to preserve way histories and tags, > etc. Like I said, we haven't started this part yet in the other import, but > even I find the prospect a little daunting! > > Best, > > Nate Wessel > Jack of all trades, Master of Geography, PhD candidate in Urban Planning > NateWessel.com > > On 1/18/19 2:15 PM, Yaro Shkvorets wrote: > > Nate, > I'll change the project name to reflect that the import is on hold. As a > local mapper, if you want to take a lead on the Toronto import that'd be > great. > I did review some of DannyMcD's edits last night > (Mississauga-Brampton-Vaughan) and to be honest was rather disappointed with > the quality. It appears Danny chose to import only new buildings (i.e. > residential homes mostly), leaving most of the existing hand-traced > non-residential building outlines in OSM untouched. That's unfortunate, the > dataset offers some really good data and leaving half of it behind makes it > more difficult to revisit in the future. > In my edits (Markham-Scarborough-East York) I was aiming to replace as many > existing geometries with outlines from the import as possible. I think that's > what we should be trying to do going forward. > Looking forward to your comments and discussion. > > > > On Fri, Jan 18, 2019 at 1:07 PM Nate Wessel <[email protected]> wrote: >> >> Hi all, >> >> I've just joined the talk-ca list, so please accept my apologies for not >> addressing this list earlier. I'm happy to take this thread off the imports >> list for now and onto talk-ca until things are ready to begin again. The >> next person to reply can please feel free to remove that email if they agree. >> >> I've just made a note on the draft import plan wiki page noting that the >> import has been stopped: >> >> https://wiki.openstreetmap.org/wiki/WikiProject_Canada/Canada_Stats_Canada_Building_Outlines_Import/Plan >> >> I would really appreciate it if the person with admin access to the tasking >> manager projects could please take those offline for the moment, or perhaps >> place them in a validation-only mode if that's possible. >> >> Like I said in my last email, which perhaps didn't make it to the talk-ca >> list >> (https://lists.openstreetmap.org/pipermail/imports/2019-January/005886.html) >> I'm now proposing that we leave the data that has already been imported and >> enter a phase of thorough validation on that data. >> >> My plan, over the next several days, is to do a general survey of the >> quality of the data that has been imported so far and make a list of >> systematic issues I see that should be addressed before we can consider >> moving forward again. I'll add those comments to the conversation in talk-ca >> and on the wiki page (link above), as I feel is appropriate. As I said >> before, I'm of the mind that this import did not get adequate review or >> approval and did not follow all the import guidelines. I think therefore we >> need to take stock, cross the t's, dot the i's, and move this thing back >> toward where it needs to be. Step one is a thoroughly documented wiki page >> outlining the proposal and responding to everything required in the import >> guidelines. >> https://wiki.openstreetmap.org/wiki/Import/Guidelines >> >> I know there are people excited about this import, and people who are eager >> to get back to work bringing buildings in, but I think everyone will be >> happier in the end if we take the time to do this right. We don't need to >> stop forever - we just need to stop until we get things right. I sincerely >> respect the good intentions of everyone involved in this and I hope we can >> all work together to make OSM a map known for it's coverage AND it's quality. >> >> Best, >> >> Nate Wessel >> Jack of all trades, Master of Geography, PhD candidate in Urban Planning >> NateWessel.com >> >> On 1/17/19 9:05 PM, OSM Volunteer stevea wrote: >> >> The thread link is: >> https://lists.openstreetmap.org/pipermail/imports/2019-January/005878.html >> >> SteveA > > > > -- > Best Regards, > Yaro Shkvorets > > _______________________________________________ > Talk-ca mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-ca -- ---------------------------------------------------- Blake Girardot OSM Wiki - https://wiki.openstreetmap.org/wiki/User:Bgirardot HOTOSM Member - https://hotosm.org/users/blake_girardot skype: jblakegirardot _______________________________________________ Talk-ca mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-ca
