[Flightgear-devel] autopilot target heading

[Mehmet Velicangil]

       If the heading mode is FG_HEADINGWAY_POINT does autopilot block use 
a similar procedure like in VOR or ILS navigation by using a rolling motion 
to intersect waypoint in a pre-determined heading or does it use the angle 
difference between its current heading and the heading calculated by the 
waypoint's coordinates and fly to that heading without taking final heading 
into account

        In the source code I saw items like wp_course and wp_distance. 
Target heading was adjusted to waypoint course such as:

        if ( wp_distance > 100 ) {    //I think it flies to a cetain 
waypoint until it reaches the limit
       TargetHeading = NormalizeDegrees(wp_course);

       can you briefly describe how wp_course is calculated?

                                                                            
                  Regards
                                                                            
                  Mehmet

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