I found the building footprints to be very good. JOSM cleaned up most of the errors..I'm not sure it would be worth the risk to do more processing. Sometimes there were crossing ways, usually with terrace or buildings in the downtown core that need to be fixed manually. Which took a ton of time. I always removed all the errors from import buildings before I added the OSM data.
I also keeped the city name on the imported data so I could tell which was the imported data/ OSM data. I removed the city name later before uploading. If there was already a building in OSM, I used the "Replace Geometry" unless the building in OSM was better. Sometimes , the local mapper had done a better job than the city, so I just left it.The building in the Niagara Region had tons of very good buildings that I just left. I also tired to fixed other JOSM errors, Like adding road names, missing tags, spelling error, natural=land ect. Using Geo Base I added about 300 names to roads mostly around Muskoka and Goderich. This usually took more time than adding the buildings. I would say adding buildings in rural, residential, & Industrial areas there is low risk for problems. The downtown areas even in small cities Port Colborne were very time consuming and require an experienced mapper.. Personally I wouldn't even want to try downtown Toronto. FYI, The top 3 CDN OSM mappers are importing the building data. http://osmstats.neis-one.org/?item=countries&country=Canada Cheers John On Fri, Jan 18, 2019 at 5:30 PM James <james2...@gmail.com> wrote: > You guys can analyze the simplified version of ontario: > > https://drive.google.com/file/d/1OK83yrPwMW4nefyu-6JsIInu0meK2rW6/view?usp=sharing > If you think it's good, I can simplify the other files and process them > into mbtiles. > _______________________________________________ > Talk-ca mailing list > Talk-ca@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-ca >
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