QGIS might have that kind of functionality, if not directly then possibily by using plugins.
The advantage of adding the data to OSM is that you plant a seed and it's very likely to grow, i.e. map data for your and those other cities actually becomes available and will steadily be improved. The disadvantage, of course is that it takes a fair bit of hard work and precious time to get started. Do you have coordinates for this city? If there happens to be imagery, it may be possible to use the gpx files only as a complementary aid and then you won't be needing all of them, just a subset. Jo Op vr 14 sep. 2018 om 17:36 schreef zhangy...@lewaimai.com < zhangy...@lewaimai.com>: > Thank you very much for the video！ > > my app users are in a small city of china, the current data in OSM about > the city is not enough, it is nearly no roads in the small city, many roads > are missing，so I must add the missing roads to the map. > > what I need is to make the whole road network first, then I can calculate > the bicycle distance between any two different points of the city for my > app。If the road network is not correct, it is not possible to get the > distance. > > Because all I need is to get the distance of any two different points of > the city, so the additional information(street names, maxspeed > information, POIs, addresses and so on.) is not necessary for me，even the > current OSM data is not necessary for me. > > Is it possible that I can make my own map without the OSM data, I just > begin from an empty map data,and I generate ways out of GPX files on my own > server? > > Even that I still need to solve the three problems below: > > - GPX tracks will overlap with other GPX tracks. Is it possible to > automatically detect whether there are two parallel ways or if this is just > one single way? > - GPX tracks will cross other GPX tracks. Is it possible to > automatically detect whether there is a road junction or one of the ways is > a bridge or a tunnel? > - Is it possible to automatically detect which OSM highway class > (road, footway, cycleway, ...) my GPX track has? > > > My app will server many small citys of china in the futuer, it is not > possible to edit the map of each city manually，because I am not familiar > with the citys too，and the GPX files are not made by me but my users，and > the num of the fiels is too large, almost 100,000 every day。 > > So I need a method to Make roads automatically，just use the GPX files， > Thanks. > > ------------------------------ > zhangy...@lewaimai.com > > > *From:* Jo <winfi...@gmail.com> > *Date:* 2018-09-14 23:02 > *To:* Bryan Housel <bhou...@gmail.com> > *CC:* zhangyang <zhangy...@lewaimai.com>; OSM dev list > <dev@openstreetmap.org> > *Subject:* Re: [OSM-dev] question about add way to openstreetmap by GPX > automatic > I made a short screencast video on how we worked with GPX before we had > good aerial imagery to work with: > > https://www.youtube.com/watch?v=tU9WJeYO77I > > Adding the ways would still be a manual process, but that's the best way > to integrate it with the already existing data anyway. I'm also showing the > ImproveWay functionality, which makes it actually quite enjoyable. > > Polyglot > > Op vr 14 sep. 2018 om 16:56 schreef Bryan Housel <bhou...@gmail.com>: > >> My approach would be to use: >> - https://github.com/mapbox/togeojson - to batch convert all the gpx -> >> geojson >> then >> - https://github.com/mapbox/tippecanoe - to merge them all into a vector >> tileset. >> then >> - upload that to Mapbox for hosting so that people can trace from it in >> the OSM editors. >> >> But this is just one approach and there might be other tools that do this. >> (I work for Mapbox, so I’m mostly familiar with our tools) >> >> Thanks, Bryan >> >> >> >> On Sep 14, 2018, at 9:56 AM, zhangy...@lewaimai.com wrote: >> >> yes，I only need to use the tracks to add roads to OSM once for each road >> at the first time，but the problem is that how can I know whick roads are >> missing，especial even the same road can have different GPS points in >> different gpx files. >> >> it is a small city for china, the current data in OSM about the city is >> not enough, many roads are missing，so I need to use the 100,000 gpx files >> to add the missing roads，so i can get the bicycle distance between >> different points of the city. >> >> of course, they are many repeated roads in the 100,000 gpx files, what >> I need is the actual way info, how can I find them out? >> >> ------------------------------ >> zhangy...@lewaimai.com >> >> >> *From:* Simon Poole <si...@poole.ch> >> *Date:* 2018-09-14 21:15 >> *To:* dev <dev@openstreetmap.org> >> *Subject:* Re: [OSM-dev] question about add way to openstreetmap by GPX >> automatic >> You probably don't want to use the tracks directly to add roads to OSM >> (you would only want to do this once in any case). Definitely they could be >> useful for detecting which roads are missing, and, if the available aerial >> imagery isn't good enough for actually adding any missing roads. >> Can you indicate where the city is? >> Simon >> >> Am 14.09.2018 um 14:33 schrieb zhangy...@lewaimai.com: >> >> my ios app has 10,000 users in one city, and they wii collect the >> trajectory in gpx format, i want to add way to openstreetmap use their >> gpx trajectory. >> >> there will be almost 100,000 gpx files one day, so it is not possible to >> edit map manual by software such as JOSN. >> >> I want to know if I can product ways accord to the 100,0000 gpx files >> automatic，I need a C++ library which can do this，can anyone help me please？ >> >> >> >> ------------------------------ >> zhangy...@lewaimai.com >> >> >> _______________________________________________ >> dev mailing >> listdev@openstreetmap.orghttps://lists.openstreetmap.org/listinfo/dev >> >> >> _______________________________________________ >> dev mailing list >> dev@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/dev >> >> >> _______________________________________________ >> dev mailing list >> dev@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/dev >> >
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