Create a scaling transformation matrix.
ScalingTransform[{s x, s y, …}]
ScalingTransform[{s x, s y, …}, p]
ScalingTransform[s, v]
ScalingTransform[s, v, p]
ScalingTransform[{2}]
→ TransformationFunction[{{2, 0}, {0, 1}}]ScalingTransform[2, {1, 1}]
→ TransformationFunction[{{3/2, 1/2, 0}, {1/2, 3/2, 0}, {0, 0, 1}}]ScalingTransform[2, {0, 1}, {3, 4}]
→ TransformationFunction[{{1, 0, 0}, {0, 2, -4}, {0, 0, 1}}]