// -- indexer
/// <summary>
/// Frequency-based intexer to be able to get the element closest to the given frequency out of the repository.
/// The element doesn't need to have the exact frequency.
/// </summary>
/// <param name="freq">the searced frequency</param>
/// <returns>the instance of MaterialPhysics with the closes frequency property or a new constructed instance</returns>
public MaterialPhysics this[float freq]
{
get
{
var found = new MaterialPhysics();
int index = -1;
float delta = float.MaxValue;
foreach (var fv in Physics)
{
float d = fv.Frequency - freq;
if (d < delta)
{
delta = d;
index = Physics.IndexOf(fv);
}
}
// finish
if (index != -1)
{
found = Physics[index];
}
return(found);
}
}
public Material(string name, MaterialPhysics physic) : this()
{
this.Name = name;
this.Physics.Add(physic);
}