MAPTATTOO supports the .gpx file format and within the .gpx file, standalone waypoints, routes and tracks (tracks will get converted into routes).
The following tools are good options to generate .gpx:
- OpenCPN (you will need NOAA and CHS S-57 charts)
- Garmin BaseCamp
- GpsVisualizer (This is probably the simplest solution as the tool does not require any installation. Just navigate to https://www.gpsvisualizer.com/draw/ and start adding your standalone waypoints and/or your tracks, then export as a .gpx file. The only downside is that the trackpoints cannot be named, so you will see them simply numbered (1, 2, 3, …) on MAPTATTOO. If you prefer having names, you could import the .gpx in BaseCamp, convert the track into a route and then name the route points in BaseCamp before exporting. Alternatively, for those of you who are familiar with the .gpx file format, you can also edit it in a text viewer and add the <name> tags inside the <trkpt> tags)
When you are done preparing your .gpx file, load it on MAPTATTOO within the DATA folder, directly on your MAPTATTOO drive (see Connecting MAPTATTOO to your laptop).
Note that the number of waypoints is limited to 250 per route.