Re: [Roadnav-users] gps - location fine, heading stuck on zero

[Alilo <3a...@gm...>]

Heading is given by your gps, and not calculated by your computer, I
think that GPRMC gives the data, it is called true course, check the
site for reference http://home.mira.net/~gnb/gps/nmea.html

On Nov 27, 2007 7:26 PM, The Gavitron <me...@ga...> wrote:
> This is just a guess, but I thought that heading was calculated in
> software, based on "where you were" and "where you are now"...
> Heading is just a vector calculation. (add time for speed/velocity.)
>
> -G
>
>
> On Nov 28, 2007 9:07 AM, Steve Franks <ste...@ie...> wrote:
> > Anyone know what NMEA strings roadnav uses for heading?  I get the
> > location just fine off my gps, but no heading.  I'm stuck on windows
> > at the moment, so I can't use gpsd to translate...
> >
> > Thanks,
> > Steve
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by: Microsoft
> > Defy all challenges. Microsoft(R) Visual Studio 2005.
> > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> > _______________________________________________
> > Roadnav-users mailing list
> > Roa...@li...
> > https://lists.sourceforge.net/lists/listinfo/roadnav-users
> >
>
>
>
> --
> THIS EMAIL IS CLASSIFIED AS A MUNITION
> #!/bin/perl -sp0777i<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<j]dsj
> $/=unpack('H*',$_);$_=`echo 16dio\U$k"SK$/SM$n\EsN0p[lN*1
> lK[d2%Sa2/d0$^Ixp"|dc`;s/\W//g;$_=pack('H*',/((..)*)$/)
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Microsoft
> Defy all challenges. Microsoft(R) Visual Studio 2005.
> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
> _______________________________________________
> Roadnav-users mailing list
> Roa...@li...
> https://lists.sourceforge.net/lists/listinfo/roadnav-users
>