Re: [Tagging] SF Muni tram lines are layer=1? and general tagging levels considerations

2012-12-17 Thread A.Pirard.Papou
On 2012-12-17 07:50, 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

Re: [Tagging] SF Muni tram lines are layer=1? and general tagging levels considerations

2012-12-17 Thread Clay Smalley
On Mon, Dec 17, 2012 at 11:40 AM, A.Pirard.Papou a.pirard.pa...@gmail.comwrote: A level is an altitude. A layer is a drawing opacity. Although OSM does not tag for the renderer, it uses the tag *layer=**. It defines *layer*as the relative position (is that altitude?). In fact, the only

Re: [Tagging] SF Muni tram lines are layer=1? and general tagging levels considerations

2012-12-17 Thread Martin Koppenhoefer
2012/12/17 A.Pirard.Papou a.pirard.pa...@gmail.com A level is an altitude. A layer is a drawing opacity. Although OSM does not tag for the renderer, it uses the tag *layer=**. It defines * layer* as the relative position (is that altitude?) no, it is not altitude (height over ground), it

Re: [Tagging] SF Muni tram lines are layer=1? and general tagging levels considerations

2012-12-17 Thread A.Pirard.Papou
On 2012-12-17 22:16, Martin Koppenhoefer wrote : 2012/12/17 A.Pirard.Papou a.pirard.pa...@gmail.com mailto:a.pirard.pa...@gmail.com A level is an altitude. A layer is a drawing opacity. Although OSM does not tag for the renderer, it uses the tag *layer=**. It defines *layer* as

Re: [Tagging] SF Muni tram lines are layer=1? and general tagging levels considerations

2012-12-17 Thread Georg Feddern
Am 18.12.2012 07:31, schrieb A.Pirard.Papou: On 2012-12-17 22:16, Martin Koppenhoefer wrote : 2012/12/17 A.Pirard.Papou a.pirard.pa...@gmail.com mailto:a.pirard.pa...@gmail.com We badly need precision. . In fact, the only effect of assigning a layer is that upper layer objects hide