Download
In short, this application takes a GPS track recorded using your GPS and converts this to a colour coded kml file that can be viewed in Google Earth.
System Requirements
I then use Garmin MapSource to extract my track data from my Garmin Etrex Legend into a text file, which I then read in with GPS and KML.
Walkthrough
When the file is completely processed a summary window will pop up. Click on the link to open the KML file directly in Google Earth (if you have it installed). Otherwise get it free from http://earth.google.com/
What do the colours mean?
Once your file is process GPS and KML you can open it in Google Earth. The colour coding in this representation is as described in the colour bar below. Lines that are Blue indicate a section of the track where you have reached the maximum speed. Red is where you were going the slowest, with the other colours in the colour bar making up the rest.
The drop Shadow is always grey.
I was thinking of allowing people to select different colour bars, so if I get enough feedback from you asking for this, I'll add it to later versions.
Maximum Speed
Minimum Speed
Required Data file format
The data file format needs to be as follows. Note that this is very close to what I get out of MapSource. The only change I had to make to the file was to split the Coordinate column into two columns to separate out the Longitude and Latitude columns.
I am planning to add support for this in newer versions.
The shaded columns below are required columns without which GPS and KML will not function. In fact, these are also the only columns that are used by GPS and KML. The other columns do not have to be present in the Data file at all.
Known Issues
Licensing and Disclaimer
You are free to download and use this application free. I do ask that you do not forward it on to other people, but rather refer them to this page (copy the link from your browser address bar above). This would ensure that they always get the latest version of the application which would include any bug fixes that have been released.
I accept absolutely no responsibility for anything that happens to you or anyone else you know by using this application. This was a fun project which I did in my spare time (and will keep supporting in the same way).
Finally
Leave some comments (below). I would love to hear some feedback. Tell me where you have used this app, if you've used it, how useful it was. Also let me know what you did not like and what you would like me to change.