$$\left[\begin{array}{c}\lambda \\ \phi \\ 1\end{array}\right]=\left[\begin{array}{ccc}{S}_{\lambda }& 0& T_{\lambda }\\ 0& S_{\phi }& T_{\phi }\\ 0& 0& 1\end{array}\right]\times \left[\begin{array}{c}x\\ y\\ 1\end{array}\right]$$