Adam

It should be possible to skip failed tiles, continue to seed and to try again later or simply ignore the missing tiles because the map does actually have holes on...

Yes, it's work, but it would make it much easier to get to know the software if there were some hints when hovering the buttons. People will often test it...

Or I give it a try to write a plugin... another topic but anyways: What has changed with ocharts? How are the charts actually rendered? Do you use an opencpn...

No, I don't know much about these details. The ocharts just look like in opencpn, so I thought the renderer of opencpn is used and since opencpn can display unencrypted...

The way you made it touch-operable, the big buttons (re-sizable!) and selection of points by clicking/touching or moving the map center to the desired location is superb! That really works...

Is there actually a list of all `gps.*` fields with an explanation what they mean?

Nice. I think there is no way around having ground wind and true wind separated if you want to get it right. What happens if SK supplies both `wind.speedTrue` and...

FYI course data calculations, maybe you can use that somehow. ~~https://github.com/quantenschaum/mapping/blob/master/coursedata.py~~ https://github.com/quantenschaum/Sail_Instrument/blob/master/Sail_Instrument/plugin.py#L614

What you achieved with AvNav is amazing, so it would be nice if this part was correct as well. AFAIK it is commonly agreed on that true wind is relative...

There is actually another definition issue with VMG vs VMC.