which gps app can do this?
iknowjoseph at gmail.com
Sun Jun 28 19:49:16 CEST 2009
I woder if you could hack something up based on the upcoming "Courier
Mode" feature in gvSIG Mobile:
2009/6/28 Michal Brzozowski <rusolis at poczta.fm>:
> Alternatively, place POIs along the coast (how dense depends on the accuracy
> you want to have). Calculate the minimum distance from the set of POIs.
> 2009/6/28 mqy <meng.qingyou at gmail.com>
>> hi lanzo,
>> I have to say that your problem is interesting, but it's a bit too
>> for a GPS application to do this.
>> One quick and dirty solution is:
>> You write a small application which:
>> 1) calculate a polygon area which contains the allowed range. to do this
>> have to use web map or standalone map. The polygon nodes are lat/lon
>> 2) get GPS fix from fso ogpsd through DBUS API. this is not difficult with
>> 3) periodically (say every five seconds) test if current position goes out
>> of predefined area.
>> if the test result is true, then warn with sound (aplay command).
>> To see where you are, you can run a GPS application at the same time.
>> I'm the writer of omgps, I'm planning to extend omgps to solve this kind
>> problem --
>> allow user register his/her python script as plugin, omgps periodically
>> each plugin,
>> passing parameters of current lat/lon/altitude, etc. Periodically can be
>> defined as: (1) on each fix (2) every N seconds.
>> Welcome your feed back :)
>> lanzo wrote:
>> > Hi!
>> > I'd like to be using my FR on my little boat as marine GPS. I was
>> > curious
>> > if, in your opinion, it could be possible to constantly show the
>> > distance
>> > between me and the nearest point on the coast line. This would be
>> > important because in my country (and i guess everywhere) there are rules
>> > about the little boats distances from the coast and I cannot overcome 3
>> > nautical miles.
>> > I know it should be possible to show the distances between my present
>> > position and any given point, but what about something always displaying
>> > the distances between my position and the nearest point on the coast?
>> > is there maybe any more in-topic forum where i can ask this?
>> > Thank you very much for any answer!
>> > bye! :)
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