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This is really really interesting. I was curious as to why I hadn't seen any execution of this pretty obvious idea, now I know.
by carlob 12y ago
This is really really interesting. I was curious as to why I hadn't seen any execution of this pretty obvious idea, now I know.
- thrownaway2424 12y agoNot that I'm trying to discourage anyone from solving this problem. That was merely my experience. There probably exists some combination of filtering and cleverness that would get around the discontinuities. But I think you can see from Google's incredibly vague elevation-along-route bike directions that this problem is not easy.
- maxerickson 12y agohttp://cycle.travel/ http://cycle.travel/ and https://www.komoot.de/ https://www.komoot.de/ both take elevation into account (and rely on OSM data for routing). I guess they are probably supplementing the SRTM data where possible though (but they are almost certainly falling back to it in places).
- thrownaway2424 12y agocycle.travel/map is really nice. I remember there was (years ago) a nifty cycling map of the city of Atlanta, which included a unique triangular control that allowed the user to trade off climbing vs. distance vs. safety (on-road or off, bike lanes, etc). It was based on Google tiles and routes but had its own elevation data.