/// <summary>
/// Calculate the distance between current vector and v
/// </summary>
/// <param name="v">vector</param>
public double Distance(Vec3f v)
{
return(System.Math.Sqrt((x - v.x) * (x - v.x) + (y - v.y) * (y - v.y) + (z - v.z) * (z - v.z)));
}
public Vec3f(Vec3f v)
{
this.x = v.x;
this.y = v.y;
this.z = v.z;
}