Thread: [Announce] modRana: a flexible GPS navigation system
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MartinK is offline MartinK
2011-04-07 , 23:11
Posts: 1,548 | Thanked: 7,510 times | Joined on Apr 2010 @ Czech Republic
#602
Originally Posted by petur View Post
I was preparing a trip, and just browsing some location, so no cached tiles, everything needed to be downloaded as I was dragging the map around. Some things I noticed:
- when dragging a lot, I was greeted with a screen full of blue squares, tiles waiting for a slot. Took quite some time for them to get a slot and draw a map.
- same for zooming in/out: lots of tiles waiting for a slot.

I thought the visible tiles had priority? Or maybe they are all busy downloading, are slow, and thus need so much time.
Yep - blue tiles -> maximum number of concurrent tile download threads reached. The tiles are actually downloaded LIFO, but because each download takes some time, downloads for an "invisible" area might be using the available slots.

Originally Posted by petur View Post
I guess aborting the download would be an option if the tile is no longer visible?
I'll have to check if the file download module/library supports this.
Provided I can get this to work efficiently (without starting and stopping downloads for the same tiles all the time ), there might be quite a few advantages:
  • less data transfered
  • quicker reaction time to a changing location
  • possibly also less concurrent download threads


Originally Posted by whats_up_skip View Post
If I turned off the route it gave me no warning or information on how to get back to the route. This is could a good thing some times, but a big problem other times.
Originally Posted by skykooler View Post
This is one of the big things I am waiting for, too: automatic route recalculation.
Automated rerouting will be added - I already have an idea how to do it (distance from route segment larger than X -> reroute), I'll just have to actually write it. There will also be an OFF switch for it, of course.
BTW, I'm also thinking about doing something like:
"rerouting in 5 seconds" + displaying a cancel buttons and preparing the route in the meantime.


Originally Posted by cheve View Post
@MartinK: I also like the 'Map Screen' in the power button menu; however, it would be more user-friendly(ihmo), that an on screen 'goto-map-screen' button is implemented at each level of the menu screen.
Just do a long press on the "escape" arrow - it should switch you directly to the map screen. I really have to finally document this on the wiki

Originally Posted by cheve View Post
I have just discovered that I am able to have two copy/instance of modRana running at the same time and these instances seem to be independent of each other. Is it by design?
Cheers,
Well, not really by design but certainly possible But both (or more ) instances share the same options storage file and I don't really test it with this in mind
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modRana: a flexible GPS navigation system
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Universal Components - a solution for native looking yet component set independent QML appliactions (QtQuick Controls 2 & Silica supported as backends)
 

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