Tell Route Manager next waypoint

[Octal450]

I try to build custom LNAV system, I want the Route Manager to go to the next waypoint, when it gets 1nm from the waypoint.

Basically when distance to waypoint < 1.0
I want to advance to next waypoint.

I have this on a timer which runs every 1 second, only when LNAV mode engaged.

Any ideas?

[sanhozay]

I think you can just update the waypoint number in the property tree, i.e. "autopilot/route-manager/current-wp".

Obviously you need to check that it's not the last waypoint by looking at "autopilot/route-manager/route/num".

I wrote a script to do similar, but it works on turn radius and change in heading, which produces a much cleaner result than just doing it at 1nm. It also has fairly crude support for flyover waypoints based on turn angle. You can probably take some functions from here or just adapt the whole thing:

waypoint-smoothing.nas

It should probably be updated to use maketimer rather than settimer.

[Octal450]

I will check and test. Thanks.

I have my own smoothing systems for it, I just need the waypoint to advance earlier.

I have now figured it out!!!

I will post my finished code here when I'm done, so other can see if needed.

THANK YOU!

J

[tikibar]

The MD 11 has that functionality in step 5 of ap_update in AFDS.nas. The waypoint advance is the last section starting at "if(enroute[1] != nil)."

[Octal450]

OK, I will look.

I may adapt your follow the magenta line thing for certain modes of LNAV.

J