Hi
1.Is it possible to log trips and then add them in Google earth, etc. with my Garmin eTrex Legend HCx??
- If so, how can I use these files to make open street maps better??
Switch to a geek …
Yes, its possible. I think the eTrex Legend HCx is a very good device for logging trips.
The best way is to set it to log the track to the data card. This option is on Main menu → Tracks → Setup → Data Card Setup. Its also worth setting it to log 1 point per second, to make sure you have a detailed track. Assuming you have a reasonably sized microSD card (1GB is plenty), you don’t have to worry about running out of space for tracklogs.
To download these tracks to your computer, on the eTrex go to Main menu → Setup → Interface, and choose “USB mass storage”. The eTrex will appear as a disk drive, with GPX files for the tracks, each named after the date.
You can open these GPX files in Google Earth, if you want to view them.
Or to use these tracks to improve OpenStreetMap:
You are probably best starting by reading some of the beginners’ guide: http://wiki.openstreetmap.org/wiki/Beginners%27_guide
Basically, first you have to upload your GPX tracks to openstreetmap.org
Then load that area of the map in an editor (JOSM or Potlatch).
Then you have draw “ways” over the top of the tracks, and give them tags for what they are, eg a road, path etc.
Then save / upload your changes, and they will be added to the map.