--- Log opened Thu Apr 07 00:00:12 2016
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04:05 #navit: < robertp> Hi all!
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04:05 #navit: < circleci-bot> Success: metalstrolch's build (#993; push) in navit-gps/navit (pull/71) -- https://circleci.com/gh/navit-gps/navit/993
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04:06 #navit: < robertp> I have a question about the planetextractor: Is there a way to split the map file to 4GB sized files to be able to put this map on a FAT usb device?
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13:03 #navit: < KaZeR> hi there
13:04 #navit: < KaZeR> robertp: yeah. technically you should be able to use a set of maps within a mapset
13:04 #navit: < robertp> hi
13:04 #navit: < robertp> I want to avoid overlapping maps
13:05 #navit: < robertp> or is that not a problem for navit?
13:05 #navit: < KaZeR> well you will need a least a very small overlap i think (tiny tiny! )
13:05 #navit: < KaZeR> to ensure that segments from one file do connect to another file
13:05 #navit: < robertp> does the overlap cause problems?
13:06 #navit: < KaZeR> if your files are from the same source map, they don't. items get merged in memory
13:06 #navit: < robertp> I think I had an issue with that at my first try with navit
13:06 #navit: < KaZeR> ah?
13:07 #navit: < robertp> It was on android. I loaded a map through the app and added a map from planet extractor aferwards.
13:07 #navit: < robertp> so this must have been different source maps?
13:08 #navit: < KaZeR> that's a possible cause yeah. i've used overlapping maps in the past without issues
13:08 #navit: < robertp> ok. Thats very good news
13:09 #navit: < robertp> Thank you.
13:09 #navit: < robertp> can i add them in navit.xml with *.bin?
13:10 #navit: < robertp> or have i to add all explicit?
13:11 #navit: < KaZeR> one easy way to do it is this :
13:12 #navit: < KaZeR> in your navit.xml
13:13 #navit: < KaZeR> then create one xml file for each map file, just the way the sample map does
13:13 #navit: < KaZeR>
13:13 #navit: < robertp> I havent ever looked into the sample map... So its a point to start.
13:14 #navit: < KaZeR> sure. let me know if you have more questions
13:15 #navit: < KaZeR> hopefully with alexhell0xbf_4 's help we'll have a better map downloading soon :)
13:16 #navit: < robertp> And my other question? :D
13:16 #navit: < KaZeR> erm.. what was that? :D
13:16 #navit: < robertp> Defining attributes on which I can decide my OSD buttin image?
13:17 #navit: < robertp> *button
13:18 #navit: < KaZeR> that's an old question. my buffer was full, i dropped this one
13:18 #navit: < robertp> hahaha
13:19 #navit: < robertp> that is the last point before i can release the audio plugin
13:19 #navit: < robertp> >this should push a little :D
13:21 #navit: < KaZeR> damn am i so easy to read? :D
13:22 #navit: < robertp> Ermm. No.
13:24 #navit: < robertp> In which intervals are the maps updated?
13:25 #navit: < alexhell0xbf_4> hi there
13:25 #navit: < robertp> hi
13:27 #navit: < alexhell0xbf_4> about map server daemon ... it should contain map regions i.e. some catalog. any comments about this ?
13:28 #navit: < alexhell0xbf_4> or could i feel free to take something already made ?
13:30 #navit: < robertp> I'd like to have the ability to split the maps in regions to fit to FAT file system
13:31 #navit: < robertp> It could do the splitting work for us.
13:31 #navit: < alexhell0xbf_4> i.e. map file not more than 4Gb ?
13:32 #navit: < robertp> yes. or 1,44 MB for floppy disks. :D
13:32 #navit: < robertp> Are there working Floppy drives with USB out there?
13:32 #navit: < alexhell0xbf_4> 1.2Mb double sided high density 5 inch floppies :)
13:33 #navit: < alexhell0xbf_4> i'm not sure, but it will be quite hard to find working floppies ...
13:34 #navit: < robertp> youll need about 7000 for western europe.
13:35 #navit: < KaZeR> alexhell0xbf_4: for the map regions, i'd love to get a programmatic data source. we don't want to maintain the list of countries and their boundaries :)
13:35 #navit: < alexhell0xbf_4> guess magnetic tape is better :))
13:35 #navit: < KaZeR> i found a shp file that should fit our needs but did not dig into it right now
13:36 #navit: < alexhell0xbf_4> KaZeR i don't think maintain of maps is so hard, also daemon can maintain it i.e. update it from osm
13:37 #navit: < alexhell0xbf_4> btw, i can take care about that
13:37 #navit: < KaZeR> alexhell0xbf_4: that would be great
13:37 #navit: < KaZeR> really
13:39 #navit: < alexhell0xbf_4> yes, region list will be taken from daemon and i will provide console application to maintain it. and as i promised before - i have a place to host it.
13:44 #navit: < jandegr> hi all
13:45 #navit: < jandegr> any chance the regions for future map downloads could be aligned on a grid ?
13:49 #navit: < KaZeR> jandegr: aligned on a grid ?
13:49 #navit: < jandegr> hi kazer, is that a positive ?
13:50 #navit: < robertp> ? doens't have a positive or negative value :D
13:51 #navit: < alexhell0xbf_4> what about you ? could you explain
13:53 #navit: < jandegr> now there is too much random, when things are aligned an app can download just the missing parts in case an adjacent region is downloaded as well
13:53 #navit: < jandegr> no more overlap below the level of the grid
13:54 #navit: < alexhell0xbf_4> got it
13:56 #navit: < jandegr> up to some extent it already works like that because of the tiles, but transparent enough
13:57 #navit: < jandegr> so on the app side we can do little with it (up to now)
13:57 #navit: < jandegr> correction : now it is not transparent enough
13:59 #navit: < alexhell0xbf_4> from the app you can send a request to the daemon to get a tile ... but give me some time to make a first version :) just as a proof of concept.
14:04 #navit: < jandegr> ok, I will just clarify a bit for kazer then
14:05 #navit: < jandegr> suppose you already downloaded that region : http://download.geofabrik.de/north-america/us/california.html
14:06 #navit: < jandegr> you see right away that you already have over 50% of http://download.geofabrik.de/north-america/us/nevada.html as well
14:06 #navit: < jandegr> but in case you want all of nevada as well, it will download it completely
14:07 #navit: < jandegr> where downloading a much smaller bbox would be enough, save storage and no overlap (up to some level)
14:07 #navit: < jandegr> is that enough to get it on your whishlist kazer ?
14:11 #navit: < robertp> Kazer, do you have news on the separated config file?
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14:47 #navit: < KaZeR> jandegr: yep that's a valid point. and it matches the idea of per-tile download. the issue is that we have so many tiles that downloading per-tile actually takes way too long
14:47 #navit: < KaZeR> so we probably need a way to request for areas.
14:48 #navit: < KaZeR> one of my first POC for map download was using the fact that a tile is 0-sized or not. if it is, you skip it from updates
14:53 #navit: < alexhell0xbf_4> KaZeR i propose to make something simple first , and add features later
14:54 #navit: < KaZeR> sure
14:54 #navit: < alexhell0xbf_4> otherwise it will be a very loooooong time to wait :) 1. take a regions catalog from geofabrik, and let it be downloadable from navit itself, 2. let map daemon to update maps automatically, 3. ......... :)
14:57 #navit: < KaZeR> haha yeah
15:00 #navit: < jandegr> kazer it would still be downloading regions, not tile by tile
15:01 #navit: < alexhell0xbf_4> tile by tile download might be made later.
15:03 #navit: < alexhell0xbf_4> and i cannot do that within two weeks :) not so much spare time now
15:05 #navit: < KaZeR> i was just trying to say that i doubt that tile by tile download will be usable. way too many tiles. zip streaming of a group of tiles is WAY faster
15:09 #navit: < alexhell0xbf_4> well
15:11 #navit: < alexhell0xbf_4> from my point of view - generally we have two tasks 1. download whole region for offline use as it already made in some navi apps (sure, you can do it now by hands, but it will be better to do it in navit itself), runtime download of the map i.e. like it made in online navi apps
15:11 #navit: < alexhell0xbf_4> for the second task u need tile by tile download
15:12 #navit: < KaZeR> definitely agree that 1) needs high priority
15:12 #navit: < KaZeR> we should have done that years ago. this is bad in term of user experience
15:13 #navit: < alexhell0xbf_4> yep, the 1. currently under development :) the 2 i propose to postpone before 1 will be made :)
15:13 #navit: < KaZeR> works for me :)
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15:40 #navit: < alexhell0xbf_4> do you have a look on osmand ?
15:55 #navit: < KaZeR> i did, but a while ago
16:00 #navit: < alexhell0xbf_4> well, i think we can do the same :) but free
16:00 #navit: < KaZeR> no we can do better :D
16:01 #navit: < alexhell0xbf_4> sounds good :) and we can add the features , networking like it made in waze ... and sure - better ;)
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--- Log closed Fri Apr 08 00:00:14 2016