[OSM-newbies] layers in OSM?

[Xan]

Al 04/09/10 21:30, En/na Serge Wroclawski ha escrit:
>
> If you're looking to make a custom rendered map, this is a bit more
> complex. You need to tell the renderer to only represent certain
> items.
>    

This is what I refering...
> The short answer for this is, you have roughly two options. First is
> to use a commercial service like CloudMade to make your own custom
> maps, or you can run them yourself. CloudMade has a custom map style
> editor and then you can make your map the way you want it.
>
> You could also make your own service like the one you describe where
> people could enter their own renders on the fly, but be aware that
> this is both disk and computationally expensive.
>
> OSM doesn't run this type of service, I suspect for a few reasons. One
> is that, as I mentioned, providing such a service would be both
> storage and computationally intensive. Doing on the fly renderings
> like that would place a burden on the system. Secondly, there are
> options for other providers (including commercial providers) to step
> in and provide that service for users, if they want/need it. And
> thirdly, because the data is available, if a user needs that, they
> could certainly provide it to themselves given a little time and the
> technical knowhow.
>    

This is a pain. I think the usefulness of this feature could launch OSM 
as one killer apps of the web. Thinking of other maps of the web (free 
or not), the user is passive: he/she has no choice of displaying. 
Display what user exactly wants could change the view of web mapps.

Commercial application over OSM or personal servers doing that could be 
good, but maybe the best thing is the "officiality" of own OSM of this 
class.... The corps are corps and don't move for "common good" of people.

I understand cpu and memory limitations of this. But certainly there is 
no real limitation. OSM developers are good and I think it's a thing 
they could do... For the other hand, yes, the data is available: you 
could download all the tiles or use josm (or any other program) and see 
what you want. But don't forget that most of users of web has no idea of 
tiles, josm, .... I think they want interfaces. This is the reason of my 
idea.

I know how to find busstop near X point, but for OSM outer user, he/she 
does not know (or thinking for example seeing the rivers of UK for scolars).

Transforming OSM to a service could provide more popularity of the project.


Maybe you could reconsiderate...

Regards and thanks for the answers,
Xan.

> Lastly, you mentioned querying. This doesn't sound much like you want
> a visual representation, but you want to ask geographic questions to
> the system and get an answer, and I'm afraid I don't know of any
> service like the one you're talking about, though it wouldn't be very
> difficult to write. In fact it may exist and I don't know about it,
> but you could certainly take the data, put it in a database and then
> run queries against it.
>
>
> I hope that answers your question.
>
> - Serge
>
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