which gps app can do this?

[Joseph Reeves]

I woder if you could hack something up based on the upcoming "Courier
Mode" feature in gvSIG Mobile:

http://gvsigmobileonopenmoko.wordpress.com/2009/06/24/with-the-new-courier-mode-openmoko-actively-guides-you-through-the-city/

Cheers, Joseph



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
>> specific
>> 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
>> you
>> have to use web map or standalone map. The polygon nodes are lat/lon
>> pairs.
>> 2) get GPS fix from fso ogpsd through DBUS API. this is not difficult with
>> python
>> 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
>> of
>> problem --
>> allow user register his/her python script as plugin, omgps periodically
>> call
>> 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! :)
>> >
>>
>> --
>> View this message in context:
>> http://n2.nabble.com/which-gps-app-can-do-this--tp3169715p3170060.html
>> Sent from the Openmoko Community mailing list archive at Nabble.com.
>>
>>
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