gcc_pure
static Angle
CalcIntermediateAngle(const SeeYouTurnpointInformation &turnpoint_infos,
const GeoPoint &location,
const GeoPoint &start,
const GeoPoint &previous,
const GeoPoint &next)
{
switch (turnpoint_infos.style) {
case SeeYouTurnpointInformation::FIXED:
return turnpoint_infos.angle12.Reciprocal();
case SeeYouTurnpointInformation::SYMMETRICAL:
break;
case SeeYouTurnpointInformation::TO_NEXT_POINT:
return next.Bearing(location);
case SeeYouTurnpointInformation::TO_PREVIOUS_POINT:
return previous.Bearing(location);
case SeeYouTurnpointInformation::TO_START_POINT:
return start.Bearing(location);
}
/* SYMMETRICAL is the fallback when the file contained an
invalid/unknown style */
const Angle ap = previous.Bearing(location);
const Angle an = next.Bearing(location);
return ap.HalfAngle(an).Reciprocal();
}
/**
* Creates the correct XCSoar OZ type from the See You OZ options for the point
* Note: there are several rules enforced here related to the combinations
* and types of Zones supported by XCSoar. When XCSoar adds more zone types,
* the logic below will need to be updated.
* @param turnpoint_infos Contains the See You turnpoint and OZ info
* @param current point position
* @param number wps in task
* @param array of wps for each point in task
* @param factType The XCSoar factory type
* @return the XCSoar OZ
*/
static ObservationZonePoint*
CreateOZ(const SeeYouTurnpointInformation &turnpoint_infos,
unsigned pos, unsigned size, const Waypoint *wps[],
TaskFactoryType factType)
{
ObservationZonePoint* oz = NULL;
const bool is_intermediate = (pos > 0) && (pos < (size - 1));
const Waypoint *wp = wps[pos];
if (!turnpoint_infos.valid)
return NULL;
if (factType == TaskFactoryType::RACING &&
is_intermediate && isKeyhole(turnpoint_infos))
oz = KeyholeZone::CreateDAeCKeyholeZone(wp->location);
else if (factType == TaskFactoryType::RACING &&
is_intermediate && isBGAEnhancedOptionZone(turnpoint_infos))
oz = KeyholeZone::CreateBGAEnhancedOptionZone(wp->location);
else if (factType == TaskFactoryType::RACING &&
is_intermediate && isBGAFixedCourseZone(turnpoint_infos))
oz = KeyholeZone::CreateBGAFixedCourseZone(wp->location);
else if (!is_intermediate && turnpoint_infos.is_line) // special case "is_line"
oz = new LineSectorZone(wp->location, turnpoint_infos.radius1);
// special case "Cylinder"
else if (fabs(turnpoint_infos.angle1.Degrees() - fixed(180)) < fixed(1) )
oz = new CylinderZone(wp->location, turnpoint_infos.radius1);
else if (factType == TaskFactoryType::RACING) {
// XCSoar does not support fixed sectors for RT
if (turnpoint_infos.style == SeeYouTurnpointInformation::FIXED)
oz = new CylinderZone(wp->location, turnpoint_infos.radius1);
else
oz = SymmetricSectorZone::CreateFAISectorZone(wp->location,
is_intermediate);
} else if (is_intermediate) { //AAT intermediate point
Angle A12adj;
assert(wps[pos + 1]);
assert(wps[pos - 1]);
switch (turnpoint_infos.style) {
case SeeYouTurnpointInformation::FIXED: {
A12adj = turnpoint_infos.angle12.Reciprocal();
break;
}
case SeeYouTurnpointInformation::SYMMETRICAL: {
const Angle ap = wps[pos - 1]->location.Bearing(wp->location);
const Angle an = wps[pos + 1]->location.Bearing(wp->location);
A12adj = ap.HalfAngle(an).Reciprocal();
break;
}
case SeeYouTurnpointInformation::TO_NEXT_POINT: {
A12adj = wps[pos + 1]->location.Bearing(wp->location);
break;
}
case SeeYouTurnpointInformation::TO_PREVIOUS_POINT: {
A12adj = wps[pos - 1]->location.Bearing(wp->location);
break;
}
case SeeYouTurnpointInformation::TO_START_POINT: {
A12adj = wps[0]->location.Bearing(wp->location);
break;
}
}
const Angle RadialStart = (A12adj - turnpoint_infos.angle1).AsBearing();
const Angle RadialEnd = (A12adj + turnpoint_infos.angle1).AsBearing();
if (turnpoint_infos.radius2 > fixed(0) &&
(turnpoint_infos.angle2.AsBearing().Degrees()) < fixed(1)) {
oz = new AnnularSectorZone(wp->location, turnpoint_infos.radius1,
RadialStart, RadialEnd, turnpoint_infos.radius2);
} else {
oz = new SectorZone(wp->location, turnpoint_infos.radius1,
RadialStart, RadialEnd);
}
} else { // catch-all
oz = new CylinderZone(wp->location, turnpoint_infos.radius1);
}
return oz;
}
