protected BaseLine(BaseLine other)
{
this.P1 = other.P1;
this.P2 = other.P2;
this.Dir = new Point(other.Dir);
var border = new List<Point>();
border.AddRange(other.Border);
Border = new ReadOnlyCollection<Point>(border);
}
protected BaseLine(BaseLine other)
{
this.P1 = other.P1;
this.P2 = other.P2;
this.Dir = new Point(other.Dir);
var border = new List <Point>();
border.AddRange(other.Border);
Border = new ReadOnlyCollection <Point>(border);
}