Placing the lightning strike markers is fairly easy:

http://www.google.com/apis/maps/documentation/#Map_Overlays

I'm unaware of anything which would help you rotate the map though, sorry.

Cheers,
Zik

On 10/5/06, David VanHorn <dvanhorn@microbrix.com> wrote:
> On 10/4/06, Zik Saleeba <zik@zikzak.net> wrote:
> >
> > If you check out the google maps API page it gives pretty
> > straightforward instructions on how to do it. You have to do a little
> > JavaScript but really it's very easy.
>
>
> Hmm.. I did look at that.
>
> What I'm after, is to plot some points that I'm getting on a serial stream,
> onto a map.
> Could be a highway map, or anything really.
>
> The data is in NMEA sentences, and looks like:
> $WIMLI,122,132,123.5*50
>
> The instrument streams this data at me, 4800 8N1
> This is giving me range and bearing to a lightning strike.
>
> For the first part, I need to pull up a map centered on where I am, and plot
> the strikes on top.
> Then I need to "untwist" them based on a compass or GPS heading information,
> IOW if I'm headed east, then an apparent 0 degree strike is actually at 90
> degrees on the map, but that's the "bonus points" round.
>
> Later, I'll want to sort and bin them so that I can separate out storms and
> single strikes or "noise"
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