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7thd is offline 7thd
2012-07-25 , 05:32
Posts: 98 | Thanked: 44 times | Joined on Mar 2010 @ Netherlands
#1101
Originally Posted by MartinK View Post
If modRana won't find the file, it will generate a new one, which might (temporarily ?) fix the issue.
(sidenote) I donīt have the same issue. But happened to notice that with every boot ModRana starts the same map layer and language etc. (whether or not I had changed them during last run).
So I looked for options.bin as well, but it wasnīt there to be found. I had [Show hidden files] on btw.
 

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shady is offline shady
2012-07-25 , 16:10
Posts: 284 | Thanked: 161 times | Joined on Dec 2009
#1102
sent in a PM
 

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Ken-Young is offline Ken-Young
2012-07-26 , 03:22
Posts: 387 | Thanked: 1,700 times | Joined on Feb 2010 @ Cambridge, MA, USA
#1103
Originally Posted by MartinK View Post
Thats a good point and I really do want to integrate HDOP in the rerouting-check calculation. But as there might be another causes for false-alerts, namely routes that were mapped with a slight offset or routes that were mapped correctly, but then reduced in point count to reduce storage space (eq. you might get a straight line for a slightly curved route in the routing result), I would still like to let the user to set the rerouting distance to some arbitrary number manually, to get rid of excessive reroutes in some cases.

IMHO, just using a HDOP multiple won't work - if you have a very good HDOP (say <1 m), the real route differing just 3 meters from the computed one would trigger rerouting. A very bad HDOP (>100m) would result in a 300+ m corridor.

...

Possible algorithms that take HDOP into account:

Algorithm nr. 1
...

Algorithm nr. 2
...
Algorithm nr. 3:
...
Algorithm nr. 4:
  • check if HDOP < (1/3)*rerouting_threshold (in meters)
  • if its larger, them rerouting threshold = 3*HDOP
I think there's no real solution for the case that the route is offset or the route has been compressed by reducing the point count. Those problems may lead to unneeded reroutings however the threshold is set. The only solution is to not let the threshold get too small, no matter how it's defined.

I like your algorithm 4. You set a floor below which the threshold cannot fall, and have no discontinuity at the point where you start using HDOP information. If the HDOP is a one standard deviation radius, then 3 standard deviations is a good threshold.

It's nice that you're adding more parameters for us to tweak. One little advantage our poor orphaned OS has is that at this point it is likely that nearly all N900 owners are geeks. Somebody writing an Android app can't assume his users like to fiddle with the app's parameters, but we can.
 

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sup is offline sup
2012-08-07 , 14:00
Posts: 197 | Thanked: 91 times | Joined on Dec 2010
#1104
Is it possible to store downloaded tiles somewhere else then in .maps folder? (i do not want them to be shared with mappero)
 

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shady is offline shady
2012-08-07 , 16:50
Posts: 284 | Thanked: 161 times | Joined on Dec 2009
#1105
MartinK, were you able to find anything out using the file i sent?
 

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woody14619 is offline woody14619
2012-08-07 , 17:17
Posts: 1,455 | Thanked: 3,309 times | Joined on Dec 2009 @ Rochester, NY
#1106
Originally Posted by sup View Post
Is it possible to store downloaded tiles somewhere else then in .maps folder? (i do not want them to be shared with mappero)
I believe you can change where the maps are stored in the settings area. The default is the shared location for several apps (mappero and others). Why would you not want to share tiles across mapping programs?
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sup is offline sup
2012-08-07 , 18:28
Posts: 197 | Thanked: 91 times | Joined on Dec 2010
#1107
Originally Posted by woody14619 View Post
I believe you can change where the maps are stored in the settings area. The default is the shared location for several apps (mappero and others). Why would you not want to share tiles across mapping programs?
Because of this. And since I opted for sqlite, it does not share maps anyway.


Well, I did not find it in the settings. Just option to use sqlite or not. Am I being blind? If so, could you be more specific where in the settings it is hidden.
 

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rotoflex is offline rotoflex
2012-08-08 , 07:39
Posts: 569 | Thanked: 462 times | Joined on Jul 2010 @ USA
#1108
Storage location for the map tiles is defined in an editable configuration file.

I can't remember the name of the file or its location, but it's mentioned somewhere in this thread.
 

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sup is offline sup
2012-08-08 , 07:59
Posts: 197 | Thanked: 91 times | Joined on Dec 2010
#1109
Originally Posted by rotoflex View Post
Storage location for the map tiles is defined in an editable configuration file.

I can't remember the name of the file or its location, but it's mentioned somewhere in this thread.
Ah, I see, it is in ~/.modrana/user_config.conf and the option is map_folder

Thanks!
 

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MartinK is offline MartinK
2012-08-09 , 10:10
Posts: 1,548 | Thanked: 7,510 times | Joined on Apr 2010 @ Czech Republic
#1110
Originally Posted by Ken-Young View Post
I like your algorithm 4. You set a floor below which the threshold cannot fall, and have no discontinuity at the point where you start using HDOP information. If the HDOP is a one standard deviation radius, then 3 standard deviations is a good threshold.
OK then, looks like I'll implement number 3.

Originally Posted by Ken-Young View Post
It's nice that you're adding more parameters for us to tweak. One little advantage our poor orphaned OS has is that at this point it is likely that nearly all N900 owners are geeks. Somebody writing an Android app can't assume his users like to fiddle with the app's parameters, but we can.
Yeah, thats quite nice ! Still, good applications should be usable (in their default state) even for non-geeks but be configurable enough to satisfy advanced users.

Originally Posted by shady View Post
MartinK, were you able to find anything out using the file i sent?
Sorry, I haven't got to it yet - I was on vacation + was rewriting track logging + testing the new track logging & rerouting (while on vacation - both work just fine with 130 km/h+ on the Autobahn ). I'll check it out right away.

Originally Posted by sup View Post
Ah, I see, it is in ~/.modrana/user_config.conf and the option is map_folder
There are other useful options in this configuration file:
  • tracklog storage path
  • placement of map-screen buttons (per mode)
  • widget configuration (per mode)
user_config.conf
(It's quite heavily documented)

There is also another configuration file, used for configuring map layers:
map_config.conf
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Last edited by MartinK; 2012-08-18 at 22:06. Reason: oops, fix algorithm number
 

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