[Tagging] SF Muni tram lines are layer=1?

Paul Johnson baloo at ursamundi.org
Mon Dec 17 20:03:01 GMT 2012


Though in this case, the rail way should be on the track centerline, which
probably doesn't overlap the road centerline.
On Dec 17, 2012 12:25 PM, "Chris Hill" <osm at raggedred.net> wrote:

> On 17/12/12 06:50, Clay Smalley wrote:
>
>> I noticed the majority of the trackage of the San Francisco Muni lines
>> are tagged as layer=1, while the streets along which they run have no layer
>> tag (an implied layer=0).
>> If the Muni lines are layer=1, it is my understanding that the Muni lines
>> should be physically above the street.
>> Since this is not the case and the lines run at street level, should I
>> remove the layer tag on these specific tracks (to imply layer=0)?
>>
>> (Of course, some of these lines run through tunnels where they are tagged
>> layer=-1, and on bridges where they are tagged layer=1 correctly. The layer
>> tag on these bits of track would remain untouched.)
>>
>
> The layer tag is only a hint to renderers. If you remove the tag the road
> way may render over the rail way and hide it.
>
> --
> Cheers, Chris
> user: chillly
>
>
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