/// <summary>
/// Gets the distance position of the next entity after a given point.
/// </summary>
/// <param name="point">The point.</param>
/// <returns>The distance position.</returns>
public double GetNextScrollValue(double point)
{
int index = IndexOfCumulatedDistance(point);
if (index >= Count)
{
return(double.NaN);
}
double nestedStart = GetCumulatedDistanceAt(index);
double delta = point - nestedStart;
IDistanceCounterCollection nestedDcc = GetNestedDistances(index);
if (nestedDcc != null)
{
double r = nestedDcc.GetNextScrollValue(delta);
if (!double.IsNaN(r) && r >= 0 && r < nestedDcc.TotalDistance)
{
return(nestedStart + r);
}
}
index = GetNextVisibleIndex(index);
if (index >= 0 && index < Count)
{
return(GetCumulatedDistanceAt(index));
}
return(double.NaN);
}
/// <summary>
/// Gets the distance position of the next entity after a given point.
/// </summary>
/// <param name="point">The point.</param>
/// <returns>The distance position.</returns>
public double GetNextScrollValue(double point)
{
double offset = trackDCC.GetCumulatedDistanceAt(start);
double d = trackDCC.GetNextScrollValue(point + offset);
if (double.IsNaN(d) || d < offset || d - offset > TotalDistance)
{
return(double.NaN);
}
return(d - offset);
}
