[OSM-talk] Highway tagging in general around the world

Brent Easton b.easton at exemail.com.au
Wed Aug 15 12:56:03 BST 2007

*********** REPLY SEPARATOR  ***********

On 15/08/2007 at 11:59 AM Richard Fairhurst  wrote:

>Brent Easton wrote:
>> Is this realistically going to happen in my lifetime? Do we have the  
>>  entire world's country boundaries recorded to the required level of  
>>  detail to be able to efficiently calculate which country any   
>> particular segment is in? Is it going to be able to cope with   
>> complex borders wrapping around sections of other countries?
>Well, I don't know your expected lifespan :), but yes, it is  
>realistically going to happen.
>Effectively it's a very similar situation to the coastlines, which  
>aren't perfect yet, but which are coming on nicely. The difference is  
>that instead of painting blue/white, you're actually painting in n  
>different colours, one for each country.
>The rough data is available (again from VMAP0) and, as ever, we can  
>refine it as we go along. Efficiency is easy enough if you're prepared  
>to put a bit of work into the data structures, and again, I think  
>we're learning a lot from coastlines.

Thanks, that's good news.

>Of course OSM always needs more developers. svn access is that way --->

I know the way, I have 2 JOSM plugins currently under development and am working with another Aussie on developing Australian route number rendering.

>For now, is_in is a handy "quick fix" which can be superseded by  
>boundaries, and doesn't break anything else.

Ok, I think my original question is answered. We will just use the 'ref=xxx' tag for Australian references and assume the renderer can work out it is in Australia. Which is pretty easy!

Thanks all for the discussion,

Brent Easton                       
University of Western Sydney                                   
Email: b.easton at uws.edu.au

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