[OSM-talk] LU overlay idea

[Robert (Jamie) Munro]

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Artem Pavlenko wrote:
> 
> On 29 May 2007, at 00:08, Robert (Jamie) Munro wrote:
> 
> Artem Pavlenko wrote:
>>>> Hello everyone,
>>>>
>>>> There was an idea to put LU on a separate layer (overlay) . I have
>>>> created a simple demo, just see how this might look like:
>>>>
>>>> http://media.mapnik.org/osm-tube.html
> 
>> Cool! Some thoughts:
> 
>> A small bug: Where two lines run together (district and circle lines for
>> example) currently one completely covers the other. They need to run in
>> parallel.
> 
> Not sure what the best way to address this. We can have multi colored
> stripy strokes or we can parallel (displaced) lines.

Definitely parallel like the normal tube map. Ideally in the same order
as the real tube map as well,

>> Can we only show tube lines on the main map if they are not in a tunnel,
>> or is the data for that not in the database yet?
> 
> I'll need to check. 

I think we need to either make it clear on the Map Features wiki page
weather railway=subway implies tunnel=yes and you therefore need
tunnel=no where it isn't in a tunnel, or if you still need to put
tunnel=yes on underground railways.

I think the latter is likely to be a bit easier to code, and as just
over half of the London underground is actually above ground, it's a bit
less data as well. :-)

Robert (Jamie) Munro
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