vector of vectors containing classes

Hello,
I am trying to make a matrix cointaining instances of a class. I made a simple class

Code:

---

class POINT
{
        public:
        double X;
        double Y;
        double Z;
};

---

Now I would like load instances of this class into a matrix. I am thinking I should use a vector of vectors, but I am not entirely sure. I am new to this and stuck, anybody?

Code:

---

vector<vector<POINT> > *dtm;

---

Best regards

You can use a vector of vectors, but why a pointer?

Also, vector of vectors is not very nice for a matrix because the sub-matrices could end up with different sizes. My preferred solution is Boost.MultiArray.

Thanks for your reply and your tip. However I would like too stick with vectors.
The pointer is there because I not sure what I am doing. My question is more how do I load my class instances into the vectors?
Should I

Code:

---

vector<vector<POINT> > dtm;

---

or

Code:

---

vector<vector<int> > *dtm;
POINT *dtm;

---

This is where I am lost.
Cheers

Well, first you should probably resize all vectors to match your desired matrix size. Then you simply use index syntax.