Ah, ok (i dont have internet where i am right now) but i'll send a message tomorow, hopefully he responds. 1 idea is that it could be canvec roads, as we know they dont connect. Another ideas is it could be in JOSM as its easy to select a bunch of stuff and paste which gets off-set if not done correctly.
Cheers, Sam On 9/11/09, Frank Steggink <[email protected]> wrote: > Hi Sam, > > Thanks for responding. The issue here is not that there is a lot of > data. This tile is pretty quiet. There were only 4500 elements (3620 > nodes and 880 ways). > > The problem is that I don't know what to do with the data contributed to > the new user. It looks to be incorrect to me, although I'll have to > verify that one way or another. Before I'm going to do anything about > that, I'll await his response. > > B.t.w. my corrections are done. :) > > Frank > > Sam Vekemans wrote: >> Hi Frank, >> thanks for sharing :-) >> This isn't the 1st time it happened, nor will it be the last.... >> (we'll make a nice FAQ sheet later) >> >> First off, are you using bulk_import? And trying to get road matcher >> to find roads? (roadmatcher is nice BUT only for a quiet area) >> >> I would recommend this; >> step 1: Create a complete .osm file for ALL the roads in your tile area. >> 2 - upload this big file to mediafire and have a link available. >> 3 -use JOSM and open that big .osm file >> 4 - download the latest data for the small area (as a new layer) >> 5 manually copy the roads that you want and delete the roads that are >> wrong. >> 5 hide the big_roads.osm file and upload the changes. >> >> However, give a couple days for the user to respond, i'll message the >> user and give access to the chart. (you also have ability to invite >> people to edit BTW) >> >> So once this new user has access to it, i'd recommend a mapping party >> and invite others. Then you all can get the whole tile copied, in 1 >> session. >> >> btw, on sunday i'll attempt to launch a uStream.tv broadcast, where >> there is an option todo an 'on-screen demo' of what i talked about >> above. (it will be recorded and posted with link) >> >> cheers, >> Sam >> >> >> On 9/11/09, Frank Steggink <[email protected]> wrote: >> >>> Hi list, >>> >>> I just _knew_ it would happen. As soon as I would start the Geobase >>> import, some user would step up, and start adding data to the areas I'm >>> about to import. And this is exactly what happened. To my surprise I >>> discovered a whole lot of data southeast of Quebec City, in the >>> Chaudière-Appalaches region: [1]. These are the NTS tiles 021L09, 10, >>> 15, and 16. >>> >>> At first I was happy that there was some considerable activity in the >>> Quebec region, other than my own. After examining the data, it comes >>> from a user (Robert66) who has only joined us on Monday. Unfortunately >>> this shines through his data as well: most of his roads are not >>> connected, so that would involve a lot of cleanup. Apparently he had a >>> blast this week: many small towns and villages were added. The data even >>> has street names! See for example Montmagny: [2]. So, I've contacted him >>> yesterday, in order to ask for more information. I haven't received a >>> reply yet, but one day isn't that much. >>> >>> Because this area was on my todo list, I decided to continue with my >>> import. Tile 021L10 ([3]) is on tonight's program. After the data was >>> loaded, I noticed a concentration of roads in St. Damien [4], which I >>> didn't see yesterday. Apparently Robert66 was busy adding it today, see >>> changeset 2451637. When zooming in, I noticed that, while the data >>> looked topologically correct (apart from the fact that the roads aren't >>> connected), many roads are displaced, up to 150 m, compared to the >>> Geobase data. See [5], screenshot of OpenJump. Brown=OSM, green=Geobase. >>> I know that Geobase isn't the most accurate dataset, but in the area I >>> have imported data, it generally matched my roads reasonably well. The >>> differences are up to 30 meters, although there are some exceptions. An >>> example is the main road in the St. Damien screenshot, going from SW to >>> NE. It was originally added by me, nearly a year ago: [6], as well as a >>> few residential roads. >>> >>> What I would like to know is: does anyone of you have a reasonable >>> explanation as to how Robert66 has added his data? He has used Potlatch, >>> and for that area there are no detailed Yahoo images. There is only one >>> GPS trace of the main road. (It isn't mine: I'm using them only as a >>> backdrop in JOSM.) I really hope he hasn't drawn the roads from memory, >>> or some sketches, without the help of any GPS. Although I have traced >>> only a few roads in St. Damien, I find it pretty odd that the roads I >>> added myself are matching Geobase well, but the roads added by Robert66, >>> are off up to 150 m! >>> >>> My hands are actually itching to override his data, and only reuse the >>> names, but that isn't really in the spirit of the import. I also don't >>> think that would be wise, because there is no clarity about how he got >>> the data. I think I'll go visit St. Damien this weekend, and do my own >>> survey. If I find out that Robert66's additions are indeed way off as >>> the OpenJump screenshot implies, then I'll probably replace his roads. >>> I'll wait for an answer from him first. Maybe he can use a bit of >>> education :) >>> >>> As for my import, when I was writing this e-mail, I've uploaded the data >>> from the standalone file, with bridges copied over, and some small >>> corrections. See changeset 2452632. I've left out the residential roads >>> in St. Damien. (Sam: there is even a note in your spreadsheet :) ) I'll >>> cleanup the data, except for the St. Damien area. I'll follow a similar >>> procedure for the rest of this entire area. Depending on the answer >>> Robert66 can give me, I'll either leave his data in place, or add more >>> Geobase roads, or eventually I'll survey those towns myself (which will >>> be a lot of work). >>> >>> So, what do you think? Do you have any additional suggestions as how to >>> handle this situation? >>> >>> Regards, >>> >>> Frank >>> >>> [1] >>> http://www.openstreetmap.org/index.html?minlat=46.5&minlon=-71&maxlat=47&maxlon=-70&box=yes&layers=B000FTF >>> [2] http://osm.org/go/cKbzIEER-- >>> [3] >>> http://www.openstreetmap.org/index.html?mlat=46.625&mlon=-70.75&minlat=46.5&minlon=-71&maxlat=46.75&maxlon=-70.5&box=yes&layers=B000FTF >>> [4] http://osm.org/go/cKawVZPY-- >>> [5] http://www.steggink.org/temp/St_Damien_QC.png >>> [6] http://www.openstreetmap.org/browse/way/27080076/history >>> >>> >>> _______________________________________________ >>> Talk-ca mailing list >>> [email protected] >>> http://lists.openstreetmap.org/listinfo/talk-ca >>> >>> >> >> >> > > -- Twitter: @Acrosscanada Facebook: http://www.facebook.com/sam.vekemans _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
