/*
* Returns the absolute difference of PA in interval from 0 to 180 degrees
*/
public double AbsoluteDifferenceDeg(PositionAngle otherPositionAngle)
{
double differenceDeg = Math.Abs(m_positionAngleDeg - otherPositionAngle.m_positionAngleDeg);
while (differenceDeg > 180)
{
differenceDeg = Math.Abs(differenceDeg - 360);
}
return(differenceDeg);
}
public SkyPosition GetTargetPosition(PositionAngle positionAngle, double distanceInDegrees)
{
m_positionAngle = positionAngle;
m_distanceInDegrees = distanceInDegrees;
if ((distanceInDegrees < 0.1) && (m_cosDec > 0.1))
{
// for small distances and declination below 84, use the simple method
// usable for most of the asteroids
return(_GetSimpleTargetPosition());
}
else
{
return(_GetPreciseTargetPosition());
}
}
public SkyPosition GetTargetPosition(PositionAngle positionAngle, double distanceInDegrees)
{
PositionExtrapolator positionExtrapolator = new PositionExtrapolator(this);
return(positionExtrapolator.GetTargetPosition(positionAngle, distanceInDegrees));
}
public bool IsPositionAngleInTolerance(PositionAngle otherPositionAngle, double toleranceDeg)
{
double positionAngleDifference = AbsoluteDifferenceDeg(otherPositionAngle);
return(positionAngleDifference < toleranceDeg);
}