[OSM-talk] The segments vs ways vs superways question again...
david at frankieandshadow.com
Thu Jan 4 10:50:57 GMT 2007
> -----Original Message-----
> From: talk-bounces at openstreetmap.org
> [mailto:talk-bounces at openstreetmap.org]On Behalf Of Dean Earley
> Sent: 03 January 2007 23:18
> To: Talk Openstreetmap
> Subject: Re: [OSM-talk] The segments vs ways vs superways question
> Nick Whitelegg wrote:
> > A better solution in the interim perhaps would be to provide strong
> > recommendations on the storage of ways - for example, make sure that
> > ways comprise segments all aligned in the same direction and logical
> > order, and, for branched streets, have one way per branch.
> I haven't read the rest of the thread yet so this may already have been
> I will continue to add branched ways to the database, as it will be FAR
> easier when the time comes to automatically split them up into ordered
> sequential lists and superways automatically.
> If we make them separate now, then after the "change" we will have to go
> around and remerge them all into the correct "superways".
> IMO, its not a huge programming task do do the splitting when needed at
> conversion time...
The problem with this aproach is that the available renderers currently
produce awful renderings of these - splitting up text among the different
branches. Not to say this won't improve, of course.
Any rearrangement will have to cope with split branches anyway, as there are
lots of examples of these (you may well have some yourself - e.g. on
opposite sides of a roundabout). The key here seems to me to be the common
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