Affine.fromCompact constructor
Create a new immutable matrix as a view on underlying storage with an offset. The first two rows are taken from storage, in row major order; the final row of "0 0 1" is implicit. The storage must have a length of at least offset + 6. The caller must ensure that the underlying list is not changed.
Implementation
factory Affine.fromCompact(List<double> storage, int offset) =>
_CompactAffine(storage, offset);