QPixmap Rotating but not translating

Hello all

I m using Qt 4.4.3


In my application I need to rotate as well as move a QPixmap vertically up ...

I m using below code

Code:

---

QLabel   CenterArc;
QPixmap pPixCenter;
QMatrix matrix;
pPixCenter.load(QString::fromUtf8("Images/BG.png"));
 
 
i++;
matrix.rotate(i);
matrix.translate(220,48-i);    
// (220,48) are original Coordinates of my Qlabel on which I have set this QPixmap
 
CenterArc.setPixmap(pPixCenter.transformed(matrix));

---

The QPixmap is rotating ,but its not moving vertically up i.e. its not transforming

Please Help..