On Tue, Nov 30, 2010 at 4:50 PM, Nic Roets <[email protected]> wrote: > On Tue, Nov 30, 2010 at 2:22 AM, Robin Paulson <[email protected]>wrote: > >> hi, >> i walk a lot, and would like a routing engine which understands i can >> take a direct route across an open public space, such as a park, >> without needing a footpath to be explicitly drawn in. the existing >> routing engines don't seem to understand this. >> >> or am i missing a tag? do i need to tag parks, etc. with "area=yes" >> "foot=yes", "access=yes" or would that be a case of "tagging for the >> routing engine" >> >> > Firstly note that routing across areas is (theoretically) much harder than > routing along ways (Non-polynomial time VS polynomial time). > > Secondly note that the problem is not restricted to pedestrian routing, > e.g. parking areas. There have been cases where people mapped the road > surface as areas, although they would then also have ways running down the > centerline. > > Supporting areas is on my list of things that I would like to do, but there > are many other things in front of it. I recently added dragable routes to > the Osm.org Routing Demo. I improved the endpoints. Negotiated for a better > server. Routing instructions and translations. And for Christmas I want a > mobile application for large scale collection of house numbers. > > > I definitely second your call for a mobile app to easily collect house numbers. A single-purpose app could be very simple. Would you want to have something graphical (user pinpoints address on map on-screen) or something even simpler (user enters housenumber, selects street based on location or accepts best match, address node is sent to OSM). In the latter case, which is what I would prefer, how would you deal with GPS inaccuracy?
Martijn van Exel +++ [email protected] laziness – impatience – hubris http://schaaltreinen.nl | http://martijnvanexel.nl | http://oegeo.wordpress.com/ twitter / skype: mvexel flickr: rhodes
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