public AssignedAreaLoads(Item item)
: base(item)
{
if (!(item is AreaElement))
throw new InvalidItemException();
weight = new UniformLoad();
// TODO: Add specific variables for this uniform load to represent self weight
//weight.Da = 0;
//weight.Db = 1;
//weight.Direction = LineLoad.LoadDirection.Gravity;
//weight.La = 1;
//weight.Lb = 1;
}