Yeah, I'm aware of those methods and I am familiar with GPX format.
However my goal is speed and efficiency and if I used the GPX format
and XML type interface calls, I would suffer.

1) I use only the lat and lng from the data and the GPS produces all
kinds of other stuff: elevation, track length, time of day, bearing of
the segment, etc.  I would estimate the amount of text per point would
be at least a factor of 10 larger.  I may use the time to generate
click events (click on point to generate an  infowindow to show time
when that point was traversed) but that would probably blow any
attempt to speed things up to h*ll.
2) I have read that the structured data formats take longer to decode
and implement compared to native JS formats, although I have not done
any timing myself on this.
3) since these are walking/hiking/bushwhaking track logs, not driving,
they tend to generate many more points.  In that example I think there
are over 900 points

I think better efficiency could be gained by

1) down sampling my set of pointys
2) encoding the points - A BIG WIN - especially when zoomed out.
3) better browser support for small vector drawing.  Only Firefox (I
think) use the native hardware (forget what its called - you guys
probably know).  IE8, Safari and Chrome are all visibly slower.  I
would think (except for IE) those guys could get that working.

Any general ideas on getting better speed and efficiency?  Remember
mine is all client side code.



On Aug 31, 9:16 pm, Brekin <brett.kinr...@ozcamps.net> wrote:
> There are many online maps that can already display a .gpx file
> (Garmin's native source).
>
> Here's one site that already does that. Look at the source code for
> instructions:http://www.obviously.com/gis/gpx_loader.html
>
> Just save that page onto your site and load the gpx file calling it
> the same name as the page (i.e. gpx_loader.gpx)
>
> Cheers
> Brett
>
> On Aug 30, 3:11 pm, "ctorra...@latinmail.com"
>
> <ctorra...@latinmail.com> wrote:
> > I am doing an application on google map to visualize the information
> > given by a GPS. I was looking at Mike Williams' tutorial and one of
> > his items "Cartrip2" is exactly what I need for my application. I hope
> > someone can help me with this. I can pass you my code and I will be
> > appreciate if you check them.
>
> > thankfully,
> > Carlos Torralvo
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups 
"Google Maps API" group.
To post to this group, send email to Google-Maps-API@googlegroups.com
To unsubscribe from this group, send email to 
google-maps-api+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/Google-Maps-API?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to