specify an ordered list of two or more waypoints and tell the program--in a computer or in a GPS receiver--to build a route from them.You are correct Fred. This is certainly one way to construct a route. I can understand how this may have been useful for certain units that ignore route points, as you pointed out. Therefore, you had to include the waypoints in the file for navigation.
My old GPS-III+ ignores the route points entirely, showing no waypoints and no routes.
How many of the ACA community have this restriction is hard to know. I want to think this is a rare case, because the GPX 1.1 standard has been around for some time. Units as simple as eTrex 10 now recognize routes. The ACA will have to decide how far back to support GPS units.
That leaves us with routes & route points are the elements we need for navigation.
once the route is built, the waypoints are no longer needed if you never need to change the route.
The programs I use never require that I specify waypoints to construct a route. Here are some examples:
- MapSource: start on a new map, select from the menu Tools > Route (notice another tool for Waypoints, but we do not want that), use the mouse to drop route points on the map, they get connected by a route, the Waypoints tab in MapSource does not contain any waypoints, select from the menu File > Save, choose GPX format, Save, open the file in a text editor to view its content. There are no waypoints in the file.
- BaseCamp: start on a new map, select from the menu Tools > Route (notice another tool for Waypoints, but we do not want that), use the mouse to drop route points on the map, they get connected by a route, the Collection list still only has the route without any waypoints, select from the menu File > Export Selected User Data, Save, open the file in a text editor to view its content. There are no waypoints in the file.
- Online maps like RideWithGPS.com, GPSies.com, & MapMyRide.com: none of them require waypoints. I simply start charting the route. When I download it, it is also only constructed of routes & route points. There are no waypoints.
There is an advantage to these online tools: they use Google maps which include bicycle paths. They are also accessible from anywhere and can be easily shared.
With that in mind, it seems that the ACA GPX file is mixing two data sets that are not related in one file:
- Waypoints that are points of interest
- Routes that are navigation paths