[OSM-dev] Distance Grid

Ævar Arnfjörð Bjarmason avarab at gmail.com
Tue Dec 1 19:03:16 GMT 2009

On Tue, Dec 1, 2009 at 17:06, Matt Amos <zerebubuth at gmail.com> wrote:
> On Tue, Dec 1, 2009 at 4:04 PM, Vitor George <vitor.george at gmail.com> wrote:
>> I want to start a project in Brazil that is similar to the Tiger Fixup 250
>> Cities [1], and I looking forward to build a script that generates a
>> distance grid, like this:
>> http://matt.sandbox.cloudmade.com/usa-routes.html
>> I've tried to contact the authors via wiki, but I was unsuccessful, so I
>> want to develop it by myself. I'm not a professional programmer, but I have
>> some experience in java. Is the LibOSM the easiest way tool to implement it?
> sorry you missed us on the wiki. i have to say, i don't really check
> the discussion pages like a good wikian should :-(
> the script is very simple, and uses cloudmade's ruby API [1] to get
> the routes. you'll need to sign up for a cloudmade API key, if you
> haven't already. the script i've attached will output CSV on stdout,
> but i usually put them in a database for easy access.
> run it like "ruby routes.rb <conf file>". i've attached an example
> configuration file, which is just a yaml map of string to lat/lon
> array.
> i look forward to seeing brazil's 250 cities :-)

I made a hacky script to generate .yml from XAPI output (attached):

wget 'http://www.informationfreeway.org/api/0.6/node[place=city|town|village|hamlet][bbox=-25.74085,62.84553,-12.41708,67.50085]'
-O iceland-places.osm
perl -CI place2yaml.pl < place.osm  > place.yml

But I just get internal server errors from the CM API:

$ ruby routes.rb place.yml
[Tue Dec 01 18:59:57 +0000 2009] HTTP error: Couldn't read data. HTTP
status: #<Net::HTTPInternalServerError:0xb769348c>, retrying...

Anyway do you have a script to generate that cute HTML matrix? And how
can I link to a route on CM's website. I have to supply lat/lon/zoom
it seems and not just starting/ending lat/lon (at least the URLs I've
seen are all like that).
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