Jeff
I was wondering if you could attach (or send) a typical "raw" and then "massaged" .gpx file (if you have an example on file somewhere)? I would be interested in having a look at the differences and see where you made changes. I have done a little playing with .gpx files in the past but nothing more complicated than tracklogs from a hand-held.
Ross
Will do. Might be sometime Wed. before I get it done.
A couple points of discussion to consider in this thread...
1. Whenever you do a SEND TO DEVICE from MapSucks to a Zumo, the transfer actually takes place in the form of a specially-named GPX file (temp.gpx). MapSucks does not actually insert the route into the GPS's GDB formatted database, but instead creates the intermediate temporary GPX file, which is in turn read on restart just like any other GPX file you manually place on the device.
The difference between most GPX exported files from other apps, and the Garmin SEND TO DEVICE function, is/are the additional data types that are embedded in the GPX file created. SEND TO DEVICE includes several Garmin-specific GPX data tags with additional info.
Although I'm not 100% certain, I do believe the latest versions of TYRE will include some of the Garmin-specific data when you set the default function/mode of TYRE to GARMIN and then SAVE-AS GPX.
2. Using Google Maps works great for creating routes with a limited number of waypoints. It has been a long-time constraint of Google Maps that it does not support more waypoints than letters of the alphabet. I think it actually stops at "Y", as each waypoint is labeled a letter of the alphabet. This restriction makes Google Maps impractical for complex/long routes.
If you like using Google Maps, I highly recommend you try TYRE. It doesn't have the waypoints restriction of Google Maps, and TYRE has some truly kick-ass export and exchange functions. The developer is a very smart person who does good work.
3. Those mentioning speed/performance issues when using Google Maps are not alone. It requires a very powerful video card and an above-average CPU speed to run smoothly and effectively. I've tried just about every variation of machine tweaks to help out, but so far nothing has substituted for a kick-ass video card and at least 4GB of RAM.
4. When deciding what routing program to rely upon, consider this...
* Google Maps requires broadband Internet access and a fast machine to run (reasonably well). GM will not operate without Internet access. The same applies to TYRE because they both use the same mapping technology.
* MapSource (MapSucks) now requires a minimum of 6GB available hard drive space to perform the regularly required map updates. If you plan on MapSource as your travel companion and prefer to use solid state disk drives and similar more rugged/portable computers, hard drive space can be a real challenge. It can make MapSource a one-time install because it uses up a lot of hard disk space doing just the initial install.
* Streets & Trips was out of the running in recent years due to a lack of any GPX export function. All the 3rd party apps that intervened, died away with S&T 2007. Only the most recent version(s) of S&T have GPX export capability. One of the best things about S&T has been (and I assume continues to be) its ability to load and run from a machine that's isolated from the Internet. But unlike MapSucks, it has not typically required nearly as much hard disk space, making S&T the most portable solution for those who like to construct and/or revise routes out on the open road. You won't get much Internet access in Colorado motels, or Niehart Montana, or the Ashe cabin.