/// <summary>
/// Evaluate the value of hermite curve at time on the range from start key frame to end key frame.
/// </summary>
/// <param name="start">Start key frame of hermite curve.</param>
/// <param name="end">End key frame of hermite curve.</param>
/// <param name="t">Time of curve to evaluate value.</param>
/// <returns>The value of hermite curve at time on the range from start key frame to end key frame.</returns>
public static double Evaluate(KeyFrame start, KeyFrame end, double t)
{
return(Hermite.Evaluate(start.time, end.time, start.value, end.value, start.outTangent, end.inTangent, t));
}
/// <summary>
/// Add key frame to curve.
/// </summary>
/// <param name="keyFrame">Key frame to add.</param>
public void AddKeyFrame(KeyFrame keyFrame)
{
frames.Add(keyFrame);
}