Re: [Talk-GB] Question regarding mapping inaccuracies.
Shaun McDonald sh...@shaunmcdonald.me.uk writes: I'm wondering if someone will be able to implement an efficient version of the snooker ball visualisation on http://www.cyclestreets.net/blog/2009/03/26/thats-a-really-odd-route/ As a quick hack I have generated such a map for the UK. http://www.gedanken.org.uk/mapping/osm-junctions/junctions.html The junction data comes from Routino[1] and as such not all highway junctions are included (only highways that are routable). The rendering is performed client-side so is rather slow (probably my Javascript isn't optimum). The server will only allow downloading a limited amount of data at a time so I recommend you zoom in to the highest or penultimate zoom level. Nice start. I'd like to be able to zoom in more, particularly in central London. I've also found that clicking Get Junctions often gets an area, where only a little bit is visible at the highest zoom, and you have to pan and re-request to get for the current area. I'd also like a permalink, and a link to the osm site for easy editing. I did say that it was a quick hack :-) I have limited the depth of zoom because I am caching tiles from the main openstreetmap tile server and don't want to overload them with requests. The maximum zoom is 15. The data that you get when you press the button is from all of the zoom 13 tiles that are completely visible within the map window in the browser. If you have zoomed in too far for any whole tiles to be visible you get one tile's worth of data. If you zoom out you obviously get more, but the server won't send more than a 3x3 area to avoid swamping the user. I have added a permalink and a link to the main OSM site for editing. -- Andrew. -- Andrew M. Bishop a...@gedanken.demon.co.uk http://www.gedanken.demon.co.uk/ ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Question regarding mapping inaccuracies.
Shaun McDonald sh...@shaunmcdonald.me.uk writes: On 29 May 2009, at 20:23, Peter Miller wrote: On 29 May 2009, at 15:42, Shaun McDonald wrote: I'm wondering if someone will be able to implement an efficient version of the snooker ball visualisation on http://www.cyclestreets.net/blog/2009/03/26/thats-a-really-odd-route/ That's very useful. Is it possible for anyone to view that mapping view through Cycle Streets? No due to reasons of poor performance, hence why I'm asking is someone else would be interested in implementing something similar with far better performance and global coverage. The original authors would be really happy to see it implemented elsewhere, as it would bring great benefits to the OSM data. As a quick hack I have generated such a map for the UK. http://www.gedanken.org.uk/mapping/osm-junctions/junctions.html The junction data comes from Routino[1] and as such not all highway junctions are included (only highways that are routable). The rendering is performed client-side so is rather slow (probably my Javascript isn't optimum). The server will only allow downloading a limited amount of data at a time so I recommend you zoom in to the highest or penultimate zoom level. [1] http://www.gedanken.org.uk/mapping/router/router.html http://www.gedanken.org.uk/software/routino/ -- Andrew. -- Andrew M. Bishop a...@gedanken.demon.co.uk http://www.gedanken.demon.co.uk/ ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Question regarding mapping inaccuracies.
On 31 May 2009, at 15:11, Andrew M. Bishop wrote: Shaun McDonald sh...@shaunmcdonald.me.uk writes: On 29 May 2009, at 20:23, Peter Miller wrote: On 29 May 2009, at 15:42, Shaun McDonald wrote: I'm wondering if someone will be able to implement an efficient version of the snooker ball visualisation on http://www.cyclestreets.net/blog/2009/03/26/thats-a-really-odd-route/ That's very useful. Is it possible for anyone to view that mapping view through Cycle Streets? No due to reasons of poor performance, hence why I'm asking is someone else would be interested in implementing something similar with far better performance and global coverage. The original authors would be really happy to see it implemented elsewhere, as it would bring great benefits to the OSM data. As a quick hack I have generated such a map for the UK. http://www.gedanken.org.uk/mapping/osm-junctions/junctions.html The junction data comes from Routino[1] and as such not all highway junctions are included (only highways that are routable). The rendering is performed client-side so is rather slow (probably my Javascript isn't optimum). The server will only allow downloading a limited amount of data at a time so I recommend you zoom in to the highest or penultimate zoom level. Nice start. I'd like to be able to zoom in more, particularly in central London. I've also found that clicking Get Junctions often gets an area, where only a little bit is visible at the highest zoom, and you have to pan and re-request to get for the current area. I'd also like a permalink, and a link to the osm site for easy editing. Shaun smime.p7s Description: S/MIME cryptographic signature ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
[Talk-GB] Question regarding mapping inaccuracies.
Hi, all. It occurred to me whilst editing recently, that due to user error, some roads do not correctly link to each other. I made this mistake when I first started editing, because I had the resolution at the wrong setting. This made things quick and easy, but unless you are using a small scale, you can't ensure that the way that you are plotting actually joins an existing way. This leaves me thinking that this could be a bit of a problem for route planning on satnav devices and other apps where the roads MUST connect together. My question is, can we (do we?) automate the checking of roads to ensure they are connected to something, and if not, is it possible to highlight them, rather like unnamed roads can be shown in red? Sorry about my garbled message; I hope it makes sense. Cheers, Chris. -- Reasons why you may want to try GNU/Linux: http://www.getgnulinux.org/ ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Question regarding mapping inaccuracies.
I'm wondering if someone will be able to implement an efficient version of the snooker ball visualisation on http://www.cyclestreets.net/blog/2009/03/26/thats-a-really-odd-route/ Shaun On 29 May 2009, at 15:19, Chris Andrew wrote: Hi, all. It occurred to me whilst editing recently, that due to user error, some roads do not correctly link to each other. I made this mistake when I first started editing, because I had the resolution at the wrong setting. This made things quick and easy, but unless you are using a small scale, you can't ensure that the way that you are plotting actually joins an existing way. This leaves me thinking that this could be a bit of a problem for route planning on satnav devices and other apps where the roads MUST connect together. My question is, can we (do we?) automate the checking of roads to ensure they are connected to something, and if not, is it possible to highlight them, rather like unnamed roads can be shown in red? Sorry about my garbled message; I hope it makes sense. Cheers, Chris. -- Reasons why you may want to try GNU/Linux: http://www.getgnulinux.org/ ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb smime.p7s Description: S/MIME cryptographic signature ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Question regarding mapping inaccuracies.
On 29 May 2009, at 15:42, Shaun McDonald wrote: I'm wondering if someone will be able to implement an efficient version of the snooker ball visualisation on http://www.cyclestreets.net/blog/2009/03/26/thats-a-really-odd-route/ That's very useful. Is it possible for anyone to view that mapping view through Cycle Streets? Regards, Peter Shaun On 29 May 2009, at 15:19, Chris Andrew wrote: Hi, all. It occurred to me whilst editing recently, that due to user error, some roads do not correctly link to each other. I made this mistake when I first started editing, because I had the resolution at the wrong setting. This made things quick and easy, but unless you are using a small scale, you can't ensure that the way that you are plotting actually joins an existing way. This leaves me thinking that this could be a bit of a problem for route planning on satnav devices and other apps where the roads MUST connect together. My question is, can we (do we?) automate the checking of roads to ensure they are connected to something, and if not, is it possible to highlight them, rather like unnamed roads can be shown in red? Sorry about my garbled message; I hope it makes sense. Cheers, Chris. -- Reasons why you may want to try GNU/Linux: http://www.getgnulinux.org/ ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
