It seems to me (and this opinion is confirmed by the search) on Habré there was still no separate topic dedicated to this important and necessary service - namely, OpenStreetMap.org - and habra people can be interested. And I just had a very interesting rally with one of the founders of this service - someone Steve Coast (Steve Coast) held an hour-long presentation of what they do and why it is needed. Impressed by the communication with this enthusiastic and fascinating person, I decided to write this post.
For those who are not in the subject, I will inform you that the guys are doing a very interesting thing - namely, they are developing (and very successfully) community-driven maps. The idea is very simple:
- A person moves on foot, by car, by bike with GPS.
- Its route is written to a certain .gpx file.
- When he returns home, he dumps it onto a computer, uploads it to a service, and “positions” his route regarding satellite maps (which Yahoo! kindly presents to them) - using JOSM - Java Open Street Map Editor.
- On this route, he marks some key points, streets, POIs (places of interest) - in the latter, by the way, there is a “power” - suppose I can see the maps on maps.Y! C , but how do I know where is The Brown Dog pub, which is located in a dead end and is strictly known to people from 20 nearby houses?
- Indicates how to move.
- Finally saves it all.
The authors themselves describe this process as follows:
How to make a map in 5 steps
- Collect data.
- Upload them to the site.
- Draw / edit the OSM map.
- Add captions and details.
- Trace the map.
And here begins the magic. The magic lies precisely in the community. When one person maps his daily itinerary, it’s just his route. When 1000 people do it, these are popular routes. When 25,000 people around the world do this, assign destinations, add links to photos, render all this information, you’ll get wikipedia on the map.
And the results are, frankly, impressive.
This is how , for example, my work area looks like. But this is not all that this service is capable of. For example,
this service — which is based on OSM — shows user-marked cycling routes.
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Frankly, the service to perfection is still very far away. Naturally, the level of coverage of cities directly depends on their popularity, and, say, London is covered much better than some of Chernihiv, although there are maps of
my native Samara , and they are not bad at all.
The goals that the OSM project sets itself are very simple and unequivocally resemble the goals of Wikipedia - openness, licensing purity, maximum data accuracy, user-generated content. Personally, I liked it all very much, the people also appreciated, and at the end of the presentation they gave him applause.
In general, a good idea. Here I think - whether to buy a cheap GPS, and whether to ride a bike on the weekend? :-)