public static bool IsInsideAngle(double targetLongitude, double targetLatitude, double targetDirection, GeoPosition point1, GeoPosition point2)
{
return(IsInsideAngle(targetLongitude, targetLatitude, targetDirection, point1, point2, true));
}
public static bool IsInsideAngle(double targetLongitude, double targetLatitude, GeoPosition point1, GeoPosition point2)
{
return(IsInsideAngle(targetLongitude, targetLatitude, 0, point1, point2, false));
}
public double Distance(GeoPosition target)
{
var distanceKilomoters = MathHelper.GetGPSDistance(this.Latitude, target.Latitude, this.Longitude, target.Longitude);
return(distanceKilomoters < 0 ? distanceKilomoters * -1 : distanceKilomoters);
}
private static bool IsInsideAngle(double targetLongitude, double targetLatitude, double targetDirection, GeoPosition point1, GeoPosition point2, bool mustHaveDirection)
{
bool result = false;
double degreesAperture = 3;
double degreesOne = GetAngle(point1.Longitude, point2.Longitude, point1.Latitude, point2.Latitude);
double degreesTwo = GetAngle(point2.Longitude, point1.Longitude, point2.Latitude, point1.Latitude);
double degreesOneFromPosition = GetAngle(point1.Longitude, targetLongitude, point1.Latitude, targetLatitude);
double degreesTwoFromPosition = GetAngle(point2.Longitude, targetLongitude, point2.Latitude, targetLatitude);
bool isTargetInAngleFromOne = degreesOne - degreesAperture <degreesOneFromPosition && degreesOne + degreesAperture> degreesOneFromPosition ||
degreesTwo - degreesAperture <degreesTwoFromPosition && degreesTwo + degreesAperture> degreesTwoFromPosition;
bool targetCompatibleHasAngle = targetDirection - degreesAperture <degreesOneFromPosition && targetDirection + degreesAperture> degreesOneFromPosition ||
targetDirection - degreesAperture <degreesTwoFromPosition && targetDirection + degreesAperture> degreesTwoFromPosition;
if (isTargetInAngleFromOne && targetCompatibleHasAngle && mustHaveDirection)
{
result = true;
}
else if (isTargetInAngleFromOne && !mustHaveDirection)
{
result = true;
}
return(result);
}
public async Task <IEnumerable <IAircraft> > GetAirplanes(GeoPosition centerPosition = null, double radiusDistanceKilometers = 100)
{
return(await source.GetAirplanes(centerPosition, radiusDistanceKilometers, this.IsCacheEnabled));
}