--- Log opened Wed Aug 22 00:00:47 2012
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17:00 < KaneTW> Hey. I'm using the latest nightly build of Navit (mostly for speedcam support) with the GTK gui and a premade OSM map on Windows 7. While everything works fine, the graphics look awful -- incredibly aliased and not very pleasant to look at. Is that a known issue or is that just a problem on my end.
17:20 < tryagain> KaneTW What do tou mean by graphics, roads and buildings on the map, text labels on the map, POI icons or text/icons of the controlling interface? It may be a good idea to post a screenshot somewhere.
17:39 < tryagain> CIA-96 ping
17:52 < KaneTW> sec
17:56 < KaneTW> imgur.com/6a4aF
18:02 < tryagain> well that's the way it looks for me too.
18:02 -!- korrosa [~netbook@host-78-145-252-10.as13285.net] has joined #navit
18:02 < korrosa> KaneTW: That looks pretty standard for Navit.
18:03 < korrosa> Check out some of the screenshots on the wiki...
18:13 < tryagain> cp15 CIA is dead at this channel.
18:14 < KaneTW> ok, just wondering
18:17 < korrosa> tryagain: Your latest commit looks interesting! Can you explain it?
18:18 < korrosa> (I haven't checked trac or wiki, so if you've done that there I can check later...)
18:18 < tryagain> Writing on the track currently
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18:43 < tryagain> http://trac.navit-project.org/ticket/456#comment:49
18:43 < tryagain> korrosa ^^^^^^^^^^^
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18:47 < korrosa> Thanks - looks good. I'll have a go at documenting that on the wiki tomorrow.
18:47 < korrosa> Does anyone actually use Navit on a horse?
18:48 < korrosa> tryagain: What are the units of the second value in the tuple if a percent sign is not used? Meters?
18:50 < tryagain> That's not exactly meters. It's map units which are exact meters at the equator but are scaled when we go to poles.
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18:55 < korrosa> OK, understood.
18:59 < korrosa> tryagain: What I don't understand: standard vehicle profiles have 3 sets of tuples. The pedantic profile has 2 sets of tuples. Why don't they both need the same?
18:59 < korrosa> I thought there were three squares: origin, destination, and route? So how can it get away with only two tuples?
18:59 < korrosa> I'm probably missing some knowledge here...
19:02 < tryagain> Nope, we had rectangle around the route, and two squares around each waypoint(endpoint). Of last two one has order=18 and distance=10000, another has order=8 and distance=40000.
19:04 < korrosa> So none around the origin?
19:05 < tryagain> For origin we have the same as for waypoints.
19:06 < korrosa> Ah, I see. So number_of_squares = 1 + (2*number_waypoints)
19:06 < tryagain> First is rectangle.
19:06 < korrosa> Where the origin is also a waypoint. So for a standard A-B route, the total number of squares is 5.
19:07 < tryagain> yes
19:08 < korrosa> OK. So, if using three tuples, the first tuple describes the route square, whilst the second and third tuples describe the two squares around each waypoint.
19:08 < korrosa> If using two, the first tuple describes the route square, whilst the second tuple describes both squares around each waypoint.
19:08 < korrosa> Correct?
19:09 < tryagain> s/first/tuple with percent sign/                             s/second/one without it/
19:10 < tryagain> order in which tuples come doesnt matter. It depends only on percent sign appearance.
19:11 < korrosa> Ah, I see. Smart.
19:11 < tryagain> #:-)
19:12 < korrosa> And you mention rectangles, whilst I mention squares. Is it actually a rectangle? I presumed squares because there's only one length provided...
19:13 < tryagain> Rectangle is built around the whole set of waypoints and then each side is enlarged by given percentage.
19:14 < tryagain> well I might be lying. Let me see the code...
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19:16 < korrosa> :)
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19:18 < tryagain> Partially. Rectangle is built around the waypoint set and then each side is enlarged by given percentage of the longest side.
19:19 < tryagain> actually, twice the given percentage.
19:26 < korrosa> OK, so I'm going to draw a picture...
19:27 < tryagain> good idea :)
19:29 < tryagain> So if you have (0,0) and (100,10) endpoints (which define 100x10 rectangle) and factor of 25%, you'll get  big search rectangle with each corner moved by 25% of 100 from the center in each direction, i.e. (-25,-25) and (125,35), or 150x60
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19:43 < korrosa> tryagain: http://i.imgur.com/cUXUv.png
19:43 < korrosa> That's for the route square. Then...
19:44 < korrosa> (Or more correctly, route rectangle!)
19:44 < tryagain> Exactly!
19:51 < korrosa> Then the entire route: http://i.imgur.com/zQbEi.png
19:52 < korrosa> Assuming a fictional 4:25%,8:80000,18:50000
19:59 < tryagain> Actually, square sides would be 160 and 100km, because each corner is moved from the waypoint by given distance to South or North and East or West.
20:03 < tryagain> To mess up everybody, you may draw 4:25%,8:80000,18:50000,3:150%
20:22 < korrosa> Of course: http://i.imgur.com/Q5m05.png
20:23 < korrosa> Now for the other one...
20:28 < korrosa> tryagain: http://i.imgur.com/XidVG.png
20:29 < korrosa> My first guess is that the first tuple is ignored when the last tuple is found...
20:29 < korrosa> Whoops Z4 = Z3 really...
20:31 < korrosa> And if that's not the case, then http://i.imgur.com/bQtZr.png
20:40 < tryagain> two sides of each z8 should be outside of z4. You drawn only one of each outside.
20:41 < tryagain> I'm starting to think adding those rectangles squares to the route graph map so it can be drawn below the actual map %)
20:42 < tryagain> reactangles and squares
20:48 < korrosa> You're right - my Z4 rectangle slipped: http://imgur.com/OyNRi
20:50 < korrosa> Would they be easy to draw on the map?
20:54 < korrosa> A question about the two squares around the waypoints: if no route is found in Z8, does the routing algorithm then switch to Z18?
20:55 < korrosa> And if this is the case, then those route_depth's with only two tuples have no fallback if it doesn't work first time, right?
20:56 < korrosa> tryagain ^^^^^^^^
20:57 < korrosa> (When I say two tuples, I mean one with a %, and one without)
21:16 < tryagain> korrosa There is no switch. At first stage, every road that fits to any one (or more) of rectangles is taken into the route graph. When I say fits the rectangle I mean not only rectangle geometry, but its zoom level, too.  At the second stage, flooding is done to find the route.  If it's not found, there's nothing to do with this vehicleprofile.
21:16 < tryagain> vehicleprofile can be switched only manually.
21:21 < korrosa> tryagain: If a road is to fit within a rectangle, does that mean the ENTIRE road (i.e. it's start and end nodes, and all nodes in-between of the way)?
21:28 < tryagain> good question, but that is quite far of the code I touched today, to tell correctly I think I should remember maptool details... I think the the OSM way segment between closest road crossings will come to route graph. But that segment will be represented by its two end nodes, any inner nodes will be thrown away.
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21:29 < tryagain> btw rectangles are indeed rectangular cuboids if you imagine them on the tiled map with third dimension being zoom level.
21:32 < korrosa> OK, I think I get it now! Thanks for the education - I'll have to write all this up on the wiki!
21:34 < tryagain> Please put a note here when you done.
21:34 < korrosa> Yeah, you're definitely gonna have to check it!
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21:41 < curious_> thanx for working on this
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21:48 < curious> i have some commercial work eating my time till end of this week and then i hope i'll have some time for field tests
21:49 < curious> btw. is there any OOM mechanism for routing algo ? i.e. can it be 'ulimit'ed somehow? (and forked as separate task) so if it runs out of mem , it could just retry with smaller rectangles?
21:50 < curious> i.e. some golden center could be found on low mem/vs long route , to make navit compute _some_ route instead of just producing no route or crashing
21:50 < curious> (automatically)
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21:51 < Megaf> hey all
21:51 < Megaf> how are you folks?
21:52 < Megaf> Well, I just got a Win CE 6 satnav and im going to try navit on it
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22:02 < korrosa> Megaf: And how's it working out for you?
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22:36 < Megaf> wheres he?
22:39 < Megaf> and actually, I dont know how its working for me, I think its not working
22:39 < Megaf> I have no idea about GPS status, there is no Icon or info anywhere
22:39 < Megaf> and I could not see an option to show where I am
22:42 < Megaf> navit 0.5.0 5214
22:46 < Megaf> also, nothing happens after I insert a street name
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23:43 < antenna1> Is it just me or is the version number shown in navit ( light bulb icon ) stuck at 5202?
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--- Log closed Thu Aug 23 00:00:47 2012