public void AddPoint(Point3D point)
{
Paths.Add(point);
}
public static double CalcDistance3D(Point3D first, Point3D second)
{
return Math.Sqrt((second.X - first.X) * (second.X - first.X) +
(second.Y - first.Y) * (second.Y - first.Y) +
(second.Z - first.Z) * (second.Z - first.Z));
}