Re: [OSM-talk] Routing over areas
Routing through area can be solved in 1 of 3 ways, depending on how the routing engine is built and how it handles rules. 1) route along the edge, treating the area as a way. This is probably the easiest solution 2) cross the area in straight line from entry point to exit point, be aware that you might be routed through fountains or other obstackles 3) the most advanced way is to make the routing engine aware of multi poligon shapes and try to route you the shortest way around any obstackles. This solution will cost the routing engine a lot of memory and processor time As a work around you can create paths cutting the area to connect the common entry and exit points, this eay you get a reliable sane route independent of routing implementation Aun Johnsen Sent from my iPhone On 22. apr. 2015, at 09.00, talk-requ...@openstreetmap.org wrote: Subject: Re: [OSM-talk] Routing over areas Message-ID: CAJvDm4Pvb5Rgt1nMJ+FV3e0Ti_Vb8my4Rr7t3i=a9aqnbs1...@mail.gmail.com Content-Type: text/plain; charset=utf-8 On 21 April 2015 at 15:52, Svavar Kjarrval sva...@kjarrval.is wrote: I wonder if similar adjustments could be made for streets with a low speed limit, especially where there are no pedestrian crossings nearby (be it imperfect data or there aren't any). Seems crazy to suggest that pedestrians and cyclers get a routing suggestion to go around to the end of the road and back to the other side instead of crossing the road *in the cases where a sane person would do exactly that*. Of course, it might need some extra tags to prevent suggestions like that where such behaviour is prohibited. - Svavar Kjarrval On 20/04/15 21:25, Rob Nickerson wrote: Interesting article for any routing experts: http://anitagraser.com/2015/04/17/routing-in-polygon-layers-yes-we-can/ Rob If there's a direct route across the square, it should be on the route map as a route - then it'd be correctly included in routing software solutions. Mike. ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Routing over areas
I wonder if similar adjustments could be made for streets with a low speed limit, especially where there are no pedestrian crossings nearby (be it imperfect data or there aren't any). Seems crazy to suggest that pedestrians and cyclers get a routing suggestion to go around to the end of the road and back to the other side instead of crossing the road *in the cases where a sane person would do exactly that*. Of course, it might need some extra tags to prevent suggestions like that where such behaviour is prohibited. - Svavar Kjarrval On 20/04/15 21:25, Rob Nickerson wrote: Interesting article for any routing experts: http://anitagraser.com/2015/04/17/routing-in-polygon-layers-yes-we-can/ Rob ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk signature.asc Description: OpenPGP digital signature ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Routing over areas
On 21 April 2015 at 15:52, Svavar Kjarrval sva...@kjarrval.is wrote: I wonder if similar adjustments could be made for streets with a low speed limit, especially where there are no pedestrian crossings nearby (be it imperfect data or there aren't any). Seems crazy to suggest that pedestrians and cyclers get a routing suggestion to go around to the end of the road and back to the other side instead of crossing the road *in the cases where a sane person would do exactly that*. Of course, it might need some extra tags to prevent suggestions like that where such behaviour is prohibited. - Svavar Kjarrval On 20/04/15 21:25, Rob Nickerson wrote: Interesting article for any routing experts: http://anitagraser.com/2015/04/17/routing-in-polygon-layers-yes-we-can/ Rob If there's a direct route across the square, it should be on the route map as a route - then it'd be correctly included in routing software solutions. Mike. @millomweb https://sites.google.com/site/millomweb/index/introduction - For all your info on Millom and South Copeland via *the area's premier website - * *currently unavailable due to ongoing harassment of me, my family, property pets* TCs https://sites.google.com/site/pmailkeey/e-mail ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
[OSM-talk] Routing over areas
Interesting article for any routing experts: http://anitagraser.com/2015/04/17/routing-in-polygon-layers-yes-we-can/ Rob ___ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
