Re: [Talk-GB] Rendering of layers

[Richard Mann]

I'm not sure Reading is good, it's just a different approach.

Buildings (and indeed most areas) are typically rendered below lines, for
various practical reasons. So maybe it is better to think of building as
the ground-coverage, rather than the usable floor (or roof).

You might want to put covered=yes on the lines as they pass underneath
(this is what is done for covered walkways between buildings, for
instance). But anything is likely to be a compromise. Look at other
stations and see what seems to work best.

Richard

On Thu, Jan 21, 2016 at 11:22 AM, Stuart Reynolds <
stu...@travelinesoutheast.org.uk> wrote:

> Personally I think that Reading is cheating.
>
> The outline that is called the railway station “building” includes the
> ticket halls, the bridge, and the platform surfaces to the extent that
> these stick out of the bridge area. I don’t agree with this - the last time
> I looked, a platform wasn’t a building; it is a platform. I would expect
> this to be a site relation - and in fact, Euston appears to be mapped that
> way, so it doesn’t look like I’m a million miles out with that thought.
>
> Next, the individual “platforms" have been mapped as edges alongside the
> satellite-visible parts of the platform areas. The platforms in OSM don’t
> extend under the footbridge - when in reality they do. Again, at Euston the
> platforms are areas (split in half to allow tagging of each platform
> number). Yes the bridge at Reading is marked as a bridge, which it allows
> it to go over the tracks. But it really is a bridge at Reading. At Gatwick
> it is a whole building over the tracks.
>
> So, to me, Reading looks like it has been mapped for the renderer, rather
> than representing what is physically on the ground.
>
> Regards
> Stuart
>
>
> 
> Stuart Reynolds
> for traveline south east & anglia
>
>
>
> On 21 Jan 2016, at 10:34, Richard Mann 
> wrote:
>
> Compare Reading - are you mapping a roof or a groundplan, or a pedestrian
> bridge?
>
> On Thu, Jan 21, 2016 at 10:12 AM, Stuart Reynolds <
> stu...@travelinesoutheast.org.uk> wrote:
>
>> Hi,
>>
>> I made a number of adjustments around the transport terminus at Gatwick
>> Airport South Terminal yesterday. When this was first mapped, what is
>> actually three buildings (the railway station, the covered travelators from
>> the bus station & car parks, and the southern stairs from the railway
>> platforms) were all mapped as one building, and the platforms were
>> “inserts” into the gaps rather than being the continuous entities that they
>> are. So I have separated those all out, and made the platforms a continuous
>> block. I also added internal escalators and travelators, although that is
>> immaterial to the question that I’m about to ask.
>>
>> The buildings are all mapped as layer=1, and the platforms without any
>> layer tag (which should default them to layer=0, AFAIK). So why are the
>> platforms and rail tracks (which I haven’t touched) been rendered over the
>> buildings, rather than under them?
>>
>> See http://www.openstreetmap.org/#map=18/51.15634/-0.16124
>>
>> Thanks
>> Stuart
>>
>>
>> 
>> Stuart Reynolds
>> for traveline south east & anglia
>>
>>
>>
>>
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>>
>>
>
>
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[Talk-GB] Rendering of layers

[Stuart Reynolds]

Hi,

I made a number of adjustments around the transport terminus at Gatwick Airport 
South Terminal yesterday. When this was first mapped, what is actually three 
buildings (the railway station, the covered travelators from the bus station & 
car parks, and the southern stairs from the railway platforms) were all mapped 
as one building, and the platforms were “inserts” into the gaps rather than 
being the continuous entities that they are. So I have separated those all out, 
and made the platforms a continuous block. I also added internal escalators and 
travelators, although that is immaterial to the question that I’m about to ask.

The buildings are all mapped as layer=1, and the platforms without any layer 
tag (which should default them to layer=0, AFAIK). So why are the platforms and 
rail tracks (which I haven’t touched) been rendered over the buildings, rather 
than under them?

See http://www.openstreetmap.org/#map=18/51.15634/-0.16124

Thanks
Stuart



Stuart Reynolds
for traveline south east & anglia



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Re: [Talk-GB] Rendering of layers

[Brian Prangle]

Hi Stuart

The rendered layering of platforms just doesn't happen. Caused me a lot of
grief with Birmingham New Street - so I switched to using levels  and using
Adrien Pavie's OpenLevelUp which allows you to zoom up and down through
building floors. Here's what New St looks like
.
Slider is on the top left of the screen

Regards

Brian


On 21 January 2016 at 10:12, Stuart Reynolds <
stu...@travelinesoutheast.org.uk> wrote:

> Hi,
>
> I made a number of adjustments around the transport terminus at Gatwick
> Airport South Terminal yesterday. When this was first mapped, what is
> actually three buildings (the railway station, the covered travelators from
> the bus station & car parks, and the southern stairs from the railway
> platforms) were all mapped as one building, and the platforms were
> “inserts” into the gaps rather than being the continuous entities that they
> are. So I have separated those all out, and made the platforms a continuous
> block. I also added internal escalators and travelators, although that is
> immaterial to the question that I’m about to ask.
>
> The buildings are all mapped as layer=1, and the platforms without any
> layer tag (which should default them to layer=0, AFAIK). So why are the
> platforms and rail tracks (which I haven’t touched) been rendered over the
> buildings, rather than under them?
>
> See http://www.openstreetmap.org/#map=18/51.15634/-0.16124
>
> Thanks
> Stuart
>
>
> 
> Stuart Reynolds
> for traveline south east & anglia
>
>
>
>
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>
>
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Re: [Talk-GB] Rendering of layers

[David Woolley]

On 21/01/16 10:12, Stuart Reynolds wrote:

The buildings are all mapped as layer=1, and the platforms without any
layer tag (which should default them to layer=0, AFAIK). So why are the
platforms and rail tracks (which I haven’t touched) been rendered over
the buildings, rather than under them?



I believe that was a policy decision.  Probably because platforms, 
including underground ones, are considered more important that the 
station buildings.



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