[mkgmap-dev] sharp angles and routing
From Gerd Petermann gpetermann_muenchen at hotmail.com on Tue Aug 11 10:39:46 BST 2015
Hi Felix, can't believe that Garmin ignores it, can you prove that with the default style? If not I assume that you create multiple arcs and one allows cycling. Gerd To: mkgmap-dev at lists.mkgmap.org.uk From: extremecarver at gmail.com Date: Tue, 11 Aug 2015 11:31:35 +0200 Subject: Re: [mkgmap-dev] sharp angles and routing okay - sounds great... (as new devices do not really mind mkgmap:bicycle=no it does not matter so much anymore - I'm only setting pedestrian restrictions different to all others for my maps ) On 11.08.2015 10:57, Gerd Petermann wrote: Hi Felix, My current approach is to evaluate the results of the style, so it is up to the author to decide what a pedestrian-only way is. Another point is that we don't need the check for ways which can't be accessed by bike. I am aware that these checks must be ignored when a special cycling map is created (or any other special map, we just have to find out meaningful option names) I am trying to produce test data to find out in what case Garmin prefers a small detour, this should help to find concrete rules. Gerd To: mkgmap-dev at lists.mkgmap.org.uk From: extremecarver at gmail.com Date: Tue, 11 Aug 2015 10:44:06 +0200 Subject: Re: [mkgmap-dev] sharp angles and routing Well - what is a strict pedestrian only way? highway=pedestrian - often can be used with bikes too (going slower) highway=footway -- often still outside cities and used for mtbiking though maybe not allowed. highway=path & bicycle=no ---> very often nice mtbike trails in countries where mtbiking is mainly forbidden like Baden-Wuerttemberg or Austria. And yeah - oneways could be excluded - but needs some care to not exclude them (for cycling maps) if oneway:bicycle=no; bicycle:oneway=no; oneway:bicycle=both; ( cycleway=* & cycleway!=oneway ) would be the most common keys which mean cycling against oneway direction is allowed. For me excluding all ways that get tagged road-class=0 or 1, and road-speed=0 could be excluded (but sometimes I use continue and double ways so it exists with say road-class=4, road-speed=2 as well as road-class=0, road-speed=0 in order to get me through sharp turns - if the sharp angle fixing would work well - maybe I could drop this). On 11.08.2015 09:52, Gerd Petermann wrote: Hi Felix, okay, I just try to find some criteria so that we find those nodes + arcs which really cause trouble. A lot of sharp angles are between oneway roads which don't allow traveleling the sharp angle. I think that also means that I can add code to ignore sharp angles on pedestrian-only ways. Gerd Date: Tue, 11 Aug 2015 09:39:11 +0200 From: extremecarver at gmail.com To: mkgmap-dev at lists.mkgmap.org.uk Subject: Re: [mkgmap-dev] sharp angles and routing Well - not in Pedestrian mode. I meant if you design a map with road-class=4 as preferred way for pedestrians... Then of course using a non pedestrian profile for routing so it chooses road-class=4 or 3 preferably. For Pedestrian mode chosen - there is no time penalty for sharp turns - though I did not test if it would prefer ways that point towards the destination at intersections. On 11 August 2015 at 09:30, Gerd Petermann <gpetermann_muenchen at hotmail.com> wrote: Hi Felix, please check: you said that sharp angles also have an effect on pedestrian routing, I was not able to reproduce that. Can you give an example? Gerd _______________________________________________ mkgmap-dev mailing list mkgmap-dev at lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev -- Felix Hartman - Openmtbmap.org & VeloMap.org Floragasse 9/11 1040 Wien Austria - Österreich _______________________________________________ mkgmap-dev mailing list mkgmap-dev at lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev _______________________________________________ mkgmap-dev mailing list mkgmap-dev at lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev -- keep on biking and discovering new trails Felix openmtbmap.org & www.velomap.org _______________________________________________ mkgmap-dev mailing list mkgmap-dev at lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev _______________________________________________ mkgmap-dev mailing list mkgmap-dev at lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev -- keep on biking and discovering new trails Felix openmtbmap.org & www.velomap.org _______________________________________________ mkgmap-dev mailing list mkgmap-dev at lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.mkgmap.org.uk/pipermail/mkgmap-dev/attachments/20150811/ae039054/attachment-0001.html>
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