Hi there, I would to participatie in the Google Summer of Code and contribute to OpenStreetMap. There are several projects on the wiki that I consider interesting, but I'll start with asking some questions about the Cycle Route Profiles.
First of all, what do you mean by profile? A figure that has the distance on one axes and the elevation on the other? Or are you (also) looking for a criterion that tells how 'hard' a certain route is? My first thought on roughly how to tackle this project is like this: * import data ** figure out a suitable database structure ** write script to get the zip files from the NASA server and put their contents in the database * calculate profile ** for each point along a route, find the nearest elevation information (perhaps some interpolation) ** (optional) calculate a score for the route * visualize profile * integrate with the rest of the site The data resolution outside the US is about 100 meters. Do you think performance will be a major factor here? Also I noticed a discussion about whether or not to use the (inaccurate) GPS elevation data. As a second phase in the project, might it be interesting to see how this data compares to the NASA data? Kind regards, Sjors
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