Comments on: OpenStreetMap http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/ From lost to the river Thu, 21 Aug 2008 21:35:05 +0000 http://wordpress.org/?v=2.3.3 By: Niels Ellegaard http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-418 Niels Ellegaard Tue, 30 Nov 1999 00:00:00 +0000 http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-418 It looks like yahoo allows you to use their satelite photos to create maps. That is much faster than GPS. We should all thank Yahoo for this :)<p/><p/><p/><p/><br/> It looks like yahoo allows you to use their satelite photos to create maps. That is much faster than GPS. We should all thank Yahoo for this :)

]]> By: Rodrigo Moya http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-419 Rodrigo Moya Tue, 30 Nov 1999 00:00:00 +0000 http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-419 Well, the problem with that is that Yahoo photos might not be as accurate as someone taking the route itself and recording it (of course, once there is coverage for everywhere :-) Also, it does not include information such as speed limits, one-way/2-ways, the name of the street/road/motorway, etc, etc Well, the problem with that is that Yahoo photos might not be as accurate as someone taking the route itself and recording it (of course, once there is coverage for everywhere :-) Also, it does not include information such as speed limits, one-way/2-ways, the name of the street/road/motorway, etc, etc

]]> By: John Drinkwater http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-420 John Drinkwater Tue, 30 Nov 1999 00:00:00 +0000 http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-420 I've been contributing to OSM for about a year, so..<p/>Just some more info:<br/>gpsbabel can help users convert any of their GPS tracklogs (Magellan .log, etc) into GPX files.<p/>OpenStreetMap encourages users to upload their GPX logs to their server aswell, to assist with future edits, and to show proof of how the data is sourced.<p/>A lot of the hard work is collecting street data, you have to note everything down by hand! (because the majority of sources use copyrighted data)<p/>I hope you enjoy contributing to OSM.<p/>Niels:<br/>Yahoo imagery is a good help in cities due to problems with gps inteference in urban areas, information still needs to be collected by hand. I’ve been contributing to OSM for about a year, so..

Just some more info:
gpsbabel can help users convert any of their GPS tracklogs (Magellan .log, etc) into GPX files.

OpenStreetMap encourages users to upload their GPX logs to their server aswell, to assist with future edits, and to show proof of how the data is sourced.

A lot of the hard work is collecting street data, you have to note everything down by hand! (because the majority of sources use copyrighted data)

I hope you enjoy contributing to OSM.

Niels:
Yahoo imagery is a good help in cities due to problems with gps inteference in urban areas, information still needs to be collected by hand.

]]> By: Robert Scott http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-421 Robert Scott Tue, 30 Nov 1999 00:00:00 +0000 http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-421 These days I seem to spend most of my time tracing Yahoo aerial imagery.<p/>But keep in mind the Y! imagery isn't the be-all-and-end-all. You get very little metadata from them. You don't get street names, you can't see which junctions are mini roundabouts, which have traffic lights etc., you often have parallax problems with tall buildings. And tall buildings cast long shadows.<p/>In short, to get a good map you will still end up having to travel all these places with a notepad or dictaphone. These days I seem to spend most of my time tracing Yahoo aerial imagery.

But keep in mind the Y! imagery isn’t the be-all-and-end-all. You get very little metadata from them. You don’t get street names, you can’t see which junctions are mini roundabouts, which have traffic lights etc., you often have parallax problems with tall buildings. And tall buildings cast long shadows.

In short, to get a good map you will still end up having to travel all these places with a notepad or dictaphone.

]]> By: Roozbeh Pournader http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-422 Roozbeh Pournader Tue, 30 Nov 1999 00:00:00 +0000 http://blogs.gnome.org/rodrigo/2007/02/14/openstreetmap/#comment-422 Wow, this is cool and has already addicted me. I have started Tehran using LandSat photos (no GPS). I am planning to buy a GPS. Wow, this is cool and has already addicted me. I have started Tehran using LandSat photos (no GPS). I am planning to buy a GPS.

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