Meta Point
Most waypoint file formats does not provide any meta-information about the data being downloaded. Most importantly, this would be some kind of information about the currency of the data being downloaded. This is valuable information as it allows the user to check that the most recent waypoints are uploaded to the navigation system / GPS.To remedy this, the user can choose whether to download a so called Meta point. This waypoint will have:
- as date, the date
of the most recent update amongst the waypoints beeing downloaded.
- as code, a string on the form "NNYMD", where
- NN is a two-letter nation code (ISO 3166)
- YMD is the a date specifier (the same used for IGC-file
naming conventions), specifying the waypoint date:
- Y = Year; value 0 to 9, cycling every 10 years
- M = Month; value 1 to 9 then A for 10, B=11, C=12.
- D = Day; value 1 to 9 then A=10, B=11, ... , V=31.
- as coordinates, the same coordinates as the selected home waypoint.
