//#####################################################################################
/// <summary>
/// 构造函数，从已有对象创建
/// </summary>
/// <param name="existingInstance"></param>
/// <param name="context"></param>
private J2Evaluator(J2Evaluator existingInstance, CopyContext context)
: base(existingInstance, context)
{
this.m_position = existingInstance.m_position;
this.m_gravity = existingInstance.m_gravity;
this.m_definedIn = context.UpdateReference <Axes>(existingInstance.m_definedIn);
this.UpdateEvaluatorReferences(context);
}
/// <summary>
/// 构造函数，给定瞬时点计算器、引力常数、坐标系、J2项系数、参考半径
/// </summary>
/// <param name="position"></param>
/// <param name="gravity"></param>
/// <param name="inertialFrame"></param>
/// <param name="j2UnnormalizedValue"></param>
/// <param name="referenceDistance"></param>
public J2Evaluator(PointEvaluator position, double gravity, ReferenceFrame inertialFrame, double j2UnnormalizedValue, double referenceDistance)
: base(RoleOfForce.Principal, KindOfForce.NewtonianSpecificForce)
{
this.m_position = position;
this.m_gravity = gravity;
this.m_definedIn = inertialFrame.Axes;
this.m_j2ZonalHarmonicCoefficient = j2UnnormalizedValue;
this.m_referenceDistance = referenceDistance;
}
