public TRNode(TMPoint p, TRNode u, TRNode l, TRRange r)
{
this.lower = l;
this.upper = u;
this.point = p;
this.state = Node_State.Free;
this.rango = r;
}
public TRNode(TMPoint p, TRRange r)
: this(p, null, null, r)
{
}