/// <summary>
/// Returns the hash code for this instance</summary>
/// <returns>A 32-bit signed integer that is the hash code for this instance</returns>
public override int GetHashCode()
{
long bits = 1;
bits = 31 * bits + Angle.GetHashCode();
bits = 31 * bits + Axis.GetHashCode();
return((int)(bits ^ (bits >> 32)));
}
