On Tue, Aug 27, 2013 at 11:22 PM, Vincent de Château-Thierry <v...@laposte.net> wrote:
> This only deals with single traffic light mapping and will not solve the low > scale rendering issues (how to put a single icon for multiple traffic > lights) and the routing through multiple synchronised traffic lights. It's not similar to the turn restriction relation. We don't need roles like "from", "to", "via". We just have to represent the controlled intersection and its traffic lights. The intersection (one or x nodes of the highways junctions) is a member of the relation with a role e,g, "intersection" or "junction". The traffic lights individual nodes are also member of the relation with a role like "traffic_light". A router is only interested to know if the intersection is controlled or not; it does not care if it's by one or three traffic lights, or if it is by two consecutive synchronized traffic lights. For the renderer, if the relation contains only one member with role "junction", it can put the icon on this node. If we have more than one member with this role, it can calculate a centroid of all the junctions nodes. Pieren _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
