--- Log opened Wed Jun 06 00:00:42 2012
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11:46 < kenguest> hmm. when's korrosa likely to be back?
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13:41 < korrosa> Say my name, say my name....
13:47 < kenguest> beetlejuice...
13:51 < Number6> korrosa: I bet you hear that often from the other bikers
13:53 < korrosa> Story of my life.
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14:12 < kenguest> I can see a ginger haired nut from here :)
14:14 < kenguest> korrosa: coming out from the Dunnes Stores car park, shown here, http://www.openstreetmap.org/?lat=52.861285&lon=-8.211215&zoom=18&layers=M , I'm not told to turn left or right. I already have a car so i don't need to go straight on!
14:15 < kenguest> iirc the service roads associated w the car park aren't named.
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16:24 < korrosa> kenguest: I've had a look, and it seems that the end section of road leading onto Limerick Road (good Lord, how Irish!) was classed as a parking_aisle, which Navit classes as a street_parking_lane. In fact, this section should just be a highway=service (Navit: street_service), so I've changed it now. Not sure if this is the reason why though - if so, then Navit has a problem with parking_aisle service highways...
16:31 < Celelibi> How can I compile with less optimisation and with more debugging verbosity?
16:40 < kenguest> korrosa: how do I test that ? ;) wait for downloading new data in a few days and try again?
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16:55 < korrosa> kenguest: Yeah, or compile a new map yourself...!
16:55 < korrosa> The Ginge King may be able to sort you out with something...
16:56 < korrosa> Celelibi: Can't answer the latest question, but can address your previous point about A* algorithm.
16:56 < korrosa> Navit uses the Dijkstra algorithm. This is a graph search algorithm: http://en.wikipedia.org/wiki/Dijkstra's_algorithm
16:58 < korrosa> At its simplest, it means that Navit holds all possible routes in memory, and if you wander off-route, it can quickly recalculate your route using the pre-existing route graph.
16:58 < korrosa> The A* algorithm is far more ruthless - finds a route, and cuts everything else off. This means that if you go off-route it will need to start all over again, which can be resource intensive.
16:59 < korrosa> Navit was designed for use on many devices, even ones with very low resources (we're talking 64MB RAM devices here), so re-calculating an entire route was not really an option, as this would have locked up the device for quite some time.
17:00 < korrosa> Anyway, that's the simple version: read that Wikipedia article for more!
17:01 < korrosa> Dijkstra vs A* in the context of games: http://stackoverflow.com/questions/1332466/how-does-dijkstras-algorithm-and-a-star-compare
17:03 < korrosa> ^^^Contradicts slightly what I said - I'd believe the guys at SO over me!
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17:15 < Celelibi> Basically, what I remember from Dijkstra and A* is that Dijkstra had a horrible name to write and pronounce (but that's not the point).
17:17 < Celelibi> Well, Dijkstra basically do a breadth first search while A* do a depth first search.
17:20 < Celelibi> Using Dijstra for routing on the world-wide road sounds like a really bad idea since it will explore EVERY path, even those that go in the opposit direction because there may be a hole in space that make you reach your desination. :)
17:21 < korrosa> Yep, which is why limits have been imposed in the Navit code: check the ticket link I provided yesterday!
17:22 < Celelibi> Yep I started to read it already. :)
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17:34 < Celelibi> BTW, I have a problem with the SVN version, it appears that there is no vehicle.
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20:12 -!- Topic for #navit: The open source vector based navigation program with routing engine. See http://wiki.navit-project.org. Please be patient if you don't get a response immediately. Please use http://navit.pastebin.com for your pastes! Channel is logged : http://irclogs.navit.ie/ Follow @NavitProject on Twitter.
20:12 -!- Topic set by KaZeR [~kazer@4.170.67.86.rev.sfr.net] [Mon May 23 18:10:04 2011]
20:12 [Users #navit]
20:12 [@ChanServ] [ ColdFyre] [ KaZeR_W    ] [ pini       ] [ toer     ] 
20:12 [@Horwitz ] [ curious ] [ kenguest   ] [ RedDog     ] [ tparcina ] 
20:12 [@KaZeR   ] [ davem   ] [ merlijn    ] [ schily     ] [ Tuju     ] 
20:12 [ Brinky  ] [ dTal_   ] [ Mineque    ] [ ScriptFanix] [ udovdh   ] 
20:12 [ bzed    ] [ efess   ] [ NavitLogger] [ sera       ] [ UukGoblin] 
20:12 [ Celelibi] [ fOB     ] [ noradtux   ] [ tg         ] [ ventYl   ] 
20:12 [ CIA-80  ] [ hape    ] [ Number6    ] [ ThomasAH   ] 
20:12 -!- Irssi: #navit: Total of 34 nicks [3 ops, 0 halfops, 0 voices, 31 normal]
20:12 -!- Channel #navit created Sun Nov 26 06:47:57 2006
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21:10 < Celelibi> It looks like navit is written in object oriented C. Nice. :)
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22:34 < CIA-80> mdankov * r5136 /trunk/navit/navit/ (graphics.c gui/internal/gui_internal.c): Fix:core:Three memleaks fixed.
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--- Log closed Thu Jun 07 00:00:41 2012