Hi there !

I'm pleased to unveil this brand new and fun OSM tool !

It provides instant visibility of an activity on the OSM project. It's interesting particularly for the HOT team during a crisis to be instantly represented and a good support for journalists who want to report about it.

It is dependent of the differentials frequency from the database so now it uses the minutely granularity, but as the framework is realtime processing, the day the api will provide pubsub infrastructure we will be able to see real time contributions on OSM ! Awesome !

For now, consider it not totally finished... there are some points I want to improve :

•  colors rendering
•  availability (the script which convert and send osmdiff into GeoXP runs at home right now :) but  if the service seems useful, we could see to host it on a better place (osm servers ?) )
•  frontend (right now it's just a simple webpage not really mobile compliant, not dynamic in the browser, could use leaflet or OpenLayers to help improve them)

This is the Rubgy WorldCup, so let's take an example with NewZealand !

Zooming will let you see in depth view of the contribution, GeoXP let you use many resolutions :

Zooming even deeper will let you see the osm nodes contributed.

For more information, just let a comment, or email me.

This service is made possible with the help of GeoXP which is probably the best solution for anyone who wants to manipulate/store/compute geodata. This is a use of the "High Performance Real-Time Scalable Heat Maps" from GeoXP. This service is not yet publicly available, but if you are interested in this solution for your own business, just ask contact@geoxp.com .

Click here to discover an other (Twitter for now) service from GeoXP, and feel free to follow @geoxpcom on twitter.

Access the service : GeoXP OSM contributions HeatMap

Mais qu'en est-il du trafic urbain ? Quelle carte suivre ? Quelles sont les voies empruntables ?

Toutes ces questions trouvent leurs réponses en un mot : OpenStreetMap (osm).

Ce wikipedia de la cartographie propose déjà une carte à jour, montrant par exemple les rues Jean Jaurès et Siam en état de "construction". Les moteurs de routage, ou les GPS Garmin munis de cartes osm sont donc capable en ce moment de ne pas vous faire perdre de temps en contournant les travaux.

Place à la carte :

Je rappelle le principe du wiki : si vous voyez une erreur, signalez là ou corrigez là, la carte n'en sera que meilleure !

Accéder à OpenStreetMap.org

The goal here is to set up a local cache to use with TangoGPS or other apps like that. I don't have 3G neither WiMax (and there isn't a great coverage anyway...) so I like to grab my tiles before a trip.

Here is a little bash script which help doing this. You just have to know the coordinates of the first tile you want to get.

Example for the Finistère (France, Brittany)

You get it with a right click on the wanted tile, and "show picture", then you get :

Here this is the path from the URL which we are interested in : 8/124/88.

• 8 stands for the zoom level.
• 124 si the x coordinate
• 88 is the y one.

There is a little algorithm to do a recursive download. I tried to sketch it by a small sample based on Brest Area.

Now you know how to use it, open the dl.sh and modify HOME, MAPHOME and EDITED variables. Execute it with "sh dl.sh args".
To finish, don't abuse on it...  If you need a huge area, or very often the same one,  this will be far better to render by yourself the tiles. For that, have a look to Osmarender ot Mapnik on the OpenStreetMap Wiki.

Click here to download:

dl.sh (1 KB)