/// <summary>
/// This method exists to guess the prescription of a plan sum by summing all plan setup prescribed doses and
/// generating a
/// relative dvh curve. Can't technically do relative dose with plan sum...but let's try to do it anyway
/// </summary>
/// <param name="ps">the plan sum where relative dose dvh curve is desired</param>
/// <param name="s">the structure to sample</param>
/// <param name="vPres">the volume presentation to create the curve</param>
/// <param name="binWidth">the bin width to create the curve</param>
/// <returns></returns>
public static DVHPoint[] GetRelativeDVHCumulativeData(this PlanSum ps, Structure s, VolumePresentation vPres,
double binWidth)
{
var guessedRxGy = ps.TotalPrescribedDoseGy();
var psDVH = ps.GetDVHCumulativeData(s, DoseValuePresentation.Absolute, vPres, binWidth);
var scalingPoint = new DoseValue(guessedRxGy, DoseValue.DoseUnit.Gy);
var dvhCurve = psDVH.CurveData.ConvertToRelativeDose(scalingPoint);
return(dvhCurve);
}
