public void AddSpans(Span[] list, double weight, double H)
{
Catenary last = null;
if (Spans.Count > 0)
{
last = Spans.Last();
weight = last.CableWeight;
H = last.HorizontalTension;
}
RaiseListChangedEvents = false;
for (int i = 0; i < list.Length; i++)
{
var cat = new Catenary(list[i], weight, H);
if (last != null)
{
cat.StartPosition = last.EndPosition;
}
Spans.Add(cat);
last = cat;
}
RaiseListChangedEvents = true;
OnRulingSpanChange(new ItemChangeEventArgs());
}
/// <summary>
/// Define a new catenary using defaults
/// </summary>
/// <returns></returns>
public Catenary NewCatenary()
{
var last = Last;
if (last == null)
{
return(Catenary.Default(ProjectUnits.Default()));
}
return(new Catenary(last.EndPosition, last.StepX, 0.0, last.CableWeight, last.HorizontalTension));
}
/// <summary>
/// Find vertical separation between catenary and point.
/// </summary>
/// <param name="point">The target point</param>
/// <param name="directional">Return absolute value if false.</param>
/// <returns></returns>
public double ClearanceTo(Vector2 point, bool directional)
{
Catenary catenary = FindCatenaryFromX(point.X);
if (catenary != null)
{
double dy = catenary.CatenaryFunction(point.X) - point.Y;
return(directional ? dy : Math.Abs(dy));
}
return(0);
}