Vector question

[DaGoblin]

Write your question here.

 return calibrateCamera(*((vector<vector<Point3f> > *)ObjPoints),*((vector<vector<Point2f> >*)imagePoints),*((S........

So I ran into this code and im puzzled with the vector part. From what I found, inside the <> should be the size of it. This thing has two <> one inside the other and somehow ObjPoints is supposed to be a pointer to that type of vector?

If you can help clarify this thanks in advance

[shadowCODE]

 vector<type> // a vector with data of certain type, e.g int 
vector<Point3f> // vector with specific type (point3f)
vector<vector<Point3f>> //2D vector 

thats about it.

[DaGoblin]

Thanks