[aprssig] perl Geo::Ellipsoid

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Wed May 4 10:50:45 EDT 2011


Are you using some sort of routing software, or is it strictly "as the 
crow flies" from where you are to the destination?  In many areas, the 
difference in ETA can be extreme.

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

On 5/4/2011 10:44 AM, Andrew Rich wrote:
> RNG = 003.46 km
> BRG = 207.04 degrees
> NOW = 05/05/2011 00:41:51 (local)
> SPD = 15 km/h
> TOR = 13.84 mins (Time on route)
> ETA = 05/05/2011 00:55:41 (local)
> - Andrew -
>
>     ----- Original Message -----
>     *From:* Andrew Rich <mailto:vk4tec at tech-software.net>
>     *To:* Andrew Rich <mailto:vk4tec at tech-software.net> ; TAPR APRS
>     Mailing List <mailto:aprssig at tapr.org>
>     *Sent:* Thursday, May 05, 2011 12:42 AM
>     *Subject:* Re: [aprssig] perl Geo::Ellipsoid
>
>     Worked it out
>     $dist = sprintf("%06.2f",$dist);
>     $bearing = sprintf("%06.2f",$bearing);
>     3 leading - zero padded , 2 trailing
>     - Andrew -
>
>         ----- Original Message -----
>         *From:* Andrew Rich <mailto:vk4tec at tech-software.net>
>         *To:* Andrew Rich <mailto:vk4tec at tech-software.net> ; TAPR
>         APRS Mailing List <mailto:aprssig at tapr.org>
>         *Sent:* Thursday, May 05, 2011 12:32 AM
>         *Subject:* Re: [aprssig] perl Geo::Ellipsoid
>
>         Wonder is someone can help
>         I want to format a number in perl
>         3 leading 0 padded
>         2 trailing decimal places
>         Do I have to treat to the left of the decimal point and to the
>         right as two seperates ?
>         I want 3.4565443 to look like "003.456"
>         Working on some GPS code
>         Using sprintf
>         This puts 3 leading and zero pads:-
>         $dist = sprintf("%3d",$dist);
>         $bearing = sprintf("%3d",$bearing);
>         This puts two trailing :-
>         print "RNG = ".sprintf("%.2f",$dist)."\n";
>         print "BRG = ".sprintf("%.2f",$bearing)."\n";
>         How do i put them together ?
>         - Andrew VK4TEC -
>
>             ----- Original Message -----
>             *From:* Andrew Rich <mailto:vk4tec at tech-software.net>
>             *To:* TAPR APRS Mailing List <mailto:aprssig at tapr.org>
>             *Sent:* Wednesday, May 04, 2011 8:14 AM
>             *Subject:* [aprssig] perl Geo::Ellipsoid
>
>             Hello
>             I have an idea, although not new, but novel
>             I am taking a small netbook and LINUX and a GPS.
>             I now have the flexibility to do anything with it.
>             I can program and make the netbook do what ever I want.
>             One thing I am playing with is the perl Geo::Ellispoid module.
>             This allows me to get range and bearing, and also I am
>             working on ETA code as well.
>             - Andrew -
>
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