May 25, 2009 13:02
I guess this is a case of having the map adjust to reality automatically instead of having to take steps such as advancing to the next waypoint manually or even to move the WP... I don't want to interact with the computer more than necessary while I'm busy sailing, I just want it to follow and adjust to reality in a (to me) intelligent manner so I can glance quickly at the display and not get crazy readings like when it's still trying to bring me to a waypoint that we passed half an hour ago, but happened to pass the WP just a little bit too far away because we tacked a bit off route...
As I think more of this, I think it could be relevant to always use half intersecting angle as "waypoint approach" condition, but in combination with a distance circle. To cover my needs I could set a fairly large circle radius (purple in my updated illustration, I tried to get it to show inline without success) if the conditions permit, but still take advantage of the "half intersecting angle" to not reach the waypoint too early. Best of both...
I haven't looked too close at SailTimer yet, but I'm not sure how it would cover these needs. It seems to be more aimed at windward optimization.
As I think more of this, I think it could be relevant to always use half intersecting angle as "waypoint approach" condition, but in combination with a distance circle. To cover my needs I could set a fairly large circle radius (purple in my updated illustration, I tried to get it to show inline without success) if the conditions permit, but still take advantage of the "half intersecting angle" to not reach the waypoint too early. Best of both...
I haven't looked too close at SailTimer yet, but I'm not sure how it would cover these needs. It seems to be more aimed at windward optimization.