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Come snowboard with me

December 17th, 2006 Tags: , ,

Call me a geek but I thought it would be cool to carry a GPS unit with me when snowboarding this year (Obertauern, Austria) so I could track where I boarded. So shiver-me-timbers when I realised that I could load my tracks (after a bit of munging) into Google Earth and re-visit my snowboarding journey from over the last few days in 3d.

A view of my journey taken from Google Earth:
Come snowboard with me

The magic really starts when you view the whole thing in Google Earth.

  1. Download my kml file and open it in Google Earth
  2. In the places menu (under temporary places) you should now have “snowboarding in Obertauern”
  3. The best way to view things is by completing a tour. Click on the “path” you would like to view and then click the play button below.
    googleearth
  4. For best results, set the following options in google earth: top menu->tools->options->touring tab->Driving directions tool options: Camera tilt angle: 50, Camera range: 200, Speed: 100

Converting your gps data into something Google Earth can understand

To pull the tracklog off a garmin gps into a gpx file, use gpsbabel:

sudo gpsbabel -t -D9 -i garmin -f /dev/ttyUSB0 -o gpx -F tracklog.gpx

Then do some munging to merge all track segments together:

gpsbabel -i gpx -f tracklog.gpx -x track,pack -o gpx -F outfile.gpx

Then, to convert the file to kml (a Google Earth format):

gpsbabel -i gpx -f outfile.gpx -o kml,line_color=65660066 -F outfile.kml

I downloaded data from my gps after each morning or afternoon of boarding and ended up with 6 gpx files. To merge them all into one, I converted each one to kml (with different route colours), loaded them all into Google Earth and then saved them into one large file.

To be a bit smarter, all the above gpsbabel command lines can be merged into one, but for the purposes of clarity, they are left as individual steps.

7 Responses to “Come snowboard with me”

  1. Jeremy Says:

    Blimey……and I said I wanted to try snowboarding!…now I can do it in the safety of my own home. FANTASTIC.


  2. Andrew Disley Says:

    Awesome, I’ll have to get myself a GPS for when we go over to Norway as it looks like you’ve set a trend now!


  3. Deb Says:

    Yay - I thoroughly recommend it! Plus you could use your tracklogs to obtain stats on your boarding (after a bit of munging) - total distanced travelled, top speed etc

    If you’re feeling particularly adventurous, you could even have a go at mapping the piste e.g.: http://wiki.openstreetmap.org/index.php/WikiProject_Val_Thorens_France


  4. John Baxendale | Siftah Says:

    Very Geeky, I love it. I’ll get my batteries charged for Norway too :)
    There’s a fairly funky little application for the Nokia N80 that lets you send your current GPS position via GPRS to a MySQL database, with a bit of hacking about you could probably get a nice real-time online map of your progress.

    Handy for the St Bernards when they need to come help drag my cold, knackered body off the piste…


  5. Deb Says:

    Very nice idea! Waiting for the N95 to come out so I can do cool things such as that. Enjoy Norway :)


  6. Snowboarding GPS foo : Deb Bassett - Urbanwide Says:

    [...] last year’s snowboarding GPS fun, I decided once again to carry a GPS for this year’s trip to St Anton, so I could keep a [...]


  7. Simon Plant Says:

    When you get a chance, run your GPX files through my processor and let me know what you think.

    http://www.chuffnuts.com/pistemaps

    It works out all the ascents (lifts) and descents (runs) etc, gives you distances traveled on snow versus lifts etc etc take a look.

    Si


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