2008/4/27 Frederik Ramm <[EMAIL PROTECTED]>: > > Instead ways directly consist of a > > number of points. This should speed up for example rendering to svg or > > routing by a huge amount. > > For routing, it is important to know whether two ways meet at a > junction or whether they just pass over or under each other. This > topology requirement is solved by our nodes. If you drop nodes ("the > completely redundand id<->point assignment is removed"), how do you > suggest a routing engine should build its routing graph then?
Nodes can still be identified by their lat/lon coordinates. As nodes are not duplicated in the database this is possible. And routing still needs to find which ways reference a node, so routing from one way to another is still complicated. On the other hand checking if another way uses the same points is fast on a spatial database (I will at some time provide funktions provide routing) _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev