[OSM-talk] waterway=lock

[Mike Harris]

Gervase

Thanks for the tip - I like the idea of using a relation here. Non-rendering is a downer (yes - I know - don't tag for the renderers) but sounds like some Good Samaritans have it in hand. If fully and universally implemented, this solution - which I feel is technically the right one - would create a huge number of new relations (a lot of bridges in the world!) - is this a problem anywhere in the software chain?

Mike Harris
 

> -----Original Message-----
> From: Gervase Markham [mailto:gerv-gmane at gerv.net] 
> Sent: 28 August 2009 09:41
> To: talk at openstreetmap.org
> Subject: Re: [OSM-talk] waterway=lock
> 
> On 27/08/09 14:27, Mike Harris wrote:
> > On a related canal issue, I have a problem with deciding 
> how to tag a 
> > canal bridge as a segment of a way. The way will often already have 
> > name= and ref= tags as a highway; but I want to add a name= 
> and ref= 
> > tag for the canal bridge. Not keen on name_1 or ref_1 - any better 
> > ideas? I did wonder about adding a node in the middle of the bridge 
> > and then tagging this with the canal bridge information and 
> reserving 
> > the name and ref tags for the highway segment.
> 
> The correct solution here is to use relations.
> http://wiki.openstreetmap.org/wiki/Relations/Proposed/Bridges_
> and_Tunnels
> 
> The relation should be as follows:
> 
> type=bridge
> across=<the road>
> under=<the waterway>
> ref=<bridge number>
> 
> Optionally:
> maxwidth=
> maxheight=
> name=
> 
> However, no renderer yet shows this, although I've been 
> working with Steve Chilton for a while to get it done.
> 
> Gerv
> 
> 
> 
> 
>