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Affine Transformation Matrix

https://developer.apple.com/documentation/coregraphics/cgaffinetransform

https://en.wikipedia.org/wiki/Transformation_matrix#Affine_transformations

${\begin{bmatrix}x'\\y'\\1\end{bmatrix}}={\begin{bmatrix}1&0&t\_{x}\\0&1&t\_{y}\\0&0&1\end{bmatrix}}{\begin{bmatrix}x\\y\\1\end{bmatrix}}.$

$x' = x + t\_x; y' = y + t\_y$

a, c, tx

b, d, ty

0, 0, 1

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