rc::Curve

Curves can be used to modify the relation between the throttle stick position and throttle and pitch output. Curves are implemented with 9 points placed at -100%, -75%, -50%, -25%, 0%, 25%, 50%, 75% and 100% stick position. It's common to have a pitch and throttle curve for each flight mode. Usually there's also a separate pitch curve present for throttle hold mode.

Curves initialize as linear curves by default.

The following is an example of some typical curves:

name	-100%	-75%	-50%	-25%	0%	25%	50%	75%	100%
Throttle normal	-256	-192	-128	-64	0	64	128	192	256
Throttle stunt	256	192	128	64	0	64	128	192	256
Pitch normal	-64	-48	-32	-16	0	64	128	192	256
Pitch stunt	-256	-192	-128	-64	0	64	128	192	256
Pitch thr hold	-256	-192	-128	-64	0	64	128	192	256