Vortex Radar
Well-Known Member
- Joined
- Mar 26, 2014
- Messages
- 821
- Reaction score
- 1,285
- Location
- Seattle, Washington
- Country
- United States
I don't think it's so much of a question of who decides where the boundaries are, but rather how much more memory you'd need to store mapping info compared to something like POI's.It is fairly easy to calculate sunset and sunrise time from the GPS coordinates and GPS time, which is what you want for your HDR On and Off if you are not going to use light level.
It gets difficult if you want to deal with timezones and DST, which don't have much to do with light levels or solar time. They are controlled by political decisions!
Some dashcams have red light camera / speed camera info, and those are basically just lat/lon coordinates and you get an alert when you're heading towards it and less than X meters away. Great.
Storing map info like borders across entire countries for multiple continents requires more data than a bunch of GPS coordinates. I'm sure there's ways to simplify things, like if there's a vertical stretch of a timezone border, you can say if you're within a certain geographic zone and you're north or south of these coordinates, consider if you're east or west of this vertical line of longitude and set your time zone accordingly.
Granted I'm not a computer science major, but I'm sure there's gotta be ways to optimize. Perhaps give people a second "time zone" file to download if they want, in addition to their firmware update file, and build in some extra memory to store that info, and boom you should give yourself the ability to set time zone via GPS.