+static naRef f_leg_path(naContext c, naRef me, int argc, naRef* args)
+{
+ FlightPlan::Leg* leg = fpLegGhost(me);
+ if (!leg) {
+ naRuntimeError(c, "leg.setAltitude called on non-flightplan-leg object");
+ }
+
+ RoutePath path(leg->owner());
+ SGGeodVec gv(path.pathForIndex(leg->index()));
+
+ naRef result = naNewVector(c);
+ BOOST_FOREACH(SGGeod p, gv) {
+ // construct a geo.Coord!
+ naRef coord = naNewHash(c);
+ hashset(c, coord, "lat", naNum(p.getLatitudeDeg()));
+ hashset(c, coord, "lon", naNum(p.getLongitudeDeg()));
+ naVec_append(result, coord);
+ }
+
+ return result;
+}
+
+static naRef f_leg_courseAndDistanceFrom(naContext c, naRef me, int argc, naRef* args)
+{
+ FlightPlan::Leg* leg = fpLegGhost(me);
+ if (!leg) {
+ naRuntimeError(c, "leg.courseAndDistanceFrom called on non-flightplan-leg object");
+ }
+
+ SGGeod pos;
+ geodFromArgs(args, 0, argc, pos);
+
+ double courseDeg;
+ double distanceM;
+ boost::tie(courseDeg, distanceM) = leg->waypoint()->courseAndDistanceFrom(pos);
+
+ naRef result = naNewVector(c);
+ naVec_append(result, naNum(courseDeg));
+ naVec_append(result, naNum(distanceM * SG_METER_TO_NM));
+ return result;
+}
+