Thursday, April 7, 2011

Displaying Garmin tracklogs on Google Maps

This is how I did it with my Garmin GPSMAP 62S:
  • Connect the GPS to Dell Latitude E4310 with supplied USB cable.
  • GPS powers up automatically and enters USB mass storage mode. The USB icon shows up on the GPS screen and a Garmin icon shows up on my Ubuntu 10.10 64-bit desktop. If you have a micro-SD card installed in the GPS, that will show up too. 
  • Double click on the Garmin icon. You'll see a Garmin folder. Keep going into Garmin -> GPX -> Current. In this directory, you'll see a file named Current.gpx. This is what you need. Unless the track you're after has been archived. If so, back out one level and look for your .gpx file there.
  • Copy Current.gpx to your Desktop or some convenient location.
  • Fire up Prune. You can install this from Synatic Package Manager where it is listed as "gpsprune".
  • In Prune, go to File>Open file and load your Current.gpx track file.
  • To delete extraneous track points, use the Range menu tools. It's quite intuitive.
  • When you're done,  go to File > Export KML. Choose your track colour, type in your file name and you're done!
  • Go to maps.google.com on your favourite browser. Sign into your Google account. Click on My Maps. Click on the "Create new map" link that appears just below "Get Directions" and "My Maps". Type in your Title and Description and then click on "Import". Upload your KML file and viola!
This is the result! And yes, I should have chosen another colour for the tracks. Next time.


View Marina Bay Circumnavigation in a larger map

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