This class is intended to be used to transform displacements ("position deltas") between pairs of points (e.g., as the offset_transform
of .Collection
\s): given a transform t
such that t =
AffineDeltaTransform(t) + offset
, AffineDeltaTransform
satisfies AffineDeltaTransform(a - b) == AffineDeltaTransform(a) -
AffineDeltaTransform(b)
.
This is implemented by forcing the offset components of the transform matrix to zero.
This class is experimental as of 3.3, and the API may change.
A transform wrapper for transforming displacements between pairs of points.
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