[OSM-dev] How to show isochrones on slippy map

Josh Doe josh at joshdoe.com
Sat Sep 10 05:43:45 BST 2011


On Sat, Aug 20, 2011 at 2:33 PM, Josh Doe <josh at joshdoe.com> wrote:
> So now that I'm figuring out the necessary bits to generate isochrones
> (or rather distance isolines) from OSM+pgRouting+GRASS, I'd like to
> put this on a little web app to allow users to specify an arbitrary
> start point and distance (and later select from several profiles).

I've gotten something basic working, after hacking the QGIS contour
plugin, but can at least generate polygon layers and show them on an
OpenLayers map. Code is here:
https://github.com/joshdoe/pysochrone

-Josh



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