April 2008 - There is now a facility to let you overlay existing GPX data so you can for example make a route based on something you've cycled before. In fact that's exactly what I did it for. I have also improved the map/window sizing was fixed before and should now adapt to your screen better though still won't cope with resizing. To overlay a track press the Overlay button in the lower pane and specify the URL for a GPX file (which you need to upload somewhere). The tracks will be parsed and overlaid. Note that this only works for tracks (things with trk tags) and not routes or waypoints. You can then click on the legend top right to hide and redisplay tracks. The buglet is that it makes it impossible to click and place a point directly onto to one of these tracks. What you have to do is put your new points down nearby then drag them into place.
I also have a FREE Google Maps tracking facility that only requires you have a suitable (Java to a minimum level) mobile phone and Bluetooth GPS. Here.
The idea is to click on the map to build up a route then download a GPX file (only available immediately after Save is pressed) and put it into your GPS. Clicking on the map adds a new point. The three buttons at the bottom are hopefully self-explanatory. You can also drag points and rename by typing in the lower pane field. As mentioned you can now bookmark and return later. Likewise reload without loosing your data.
Features not yet implemented that exist in the older version are the Foretrex fix, pan links and remembering your stomping ground. Note the download link only exists immediately after a save.
Known quirks include the offset marker shadow and the difficulty in clicking on the map close to an existing point (due to its size). The workaround for the last problem is to temporarily move the existing point out the way or to zoom in until it isn't a problem. Distance is calculated only in imperial miles.
I have a GPSMAP 60C and there's a reasonable chance the output won't work on other devices. If you find this to be the case please let me know. Also characters that don't represent themselves in XML such as ampersands, double-accented ligatures and quotes are likely to cause trouble for the time being.
Please do let me know BUT ADD THE DIGIT THREE BEFORE THE AT SIGN what you think of it.
If you're asking "How do I make use of the GPX file I've just created or am considering creating ?" or similar, Mac users can use the excellent LoadMyTracks. For windows user there is GPSU. Also take a look at the cross-platform GPSBabel and Topografix's resource page.
To keep it clean there are no instructions on the page itself. To use, name the route, press start then repeatedly
Some of my business involves designing kit for tracking vehicles and other related bits of automotive electronics. I'm doing this on the side as something kind of related to my cycling, some of which is an excuse to fiddle with GPS or is it the other way round.