Am 26.02.2016 um 18:09 schrieb Richard Welty: > > the problem is that detecting the condition is pretty expensive. > consider long, straight boundaries that pass through your > bounding box. the search to find these segments of ways > might have to range out pretty far. > > Pretty far == the whole dataset/the world
Naturally that is simply the extreme case. I always recommend to add a node even in completely straight lines every couple of dozens of meters/yards to be on the safe side and to keep everything editable. Forgetting the extreme case, maybe we should have some kind of bounding box based index for ways and relations (note we don't use PostGIS and it wouldn't actually help in this case, so this would have to be home grown in some form), naturally calculating the bounding box would make many operations that are now very cheap rather expensive. Simon
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Talk-us mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-us
