d3/d3-interpolate

Does d3.interpolateTransform match the CSS Transform spec?

mbostock opened this issue · 1 comments

https://drafts.csswg.org/css-transforms/#decomposing-a-2d-matrix

I’m quite sure the implementation here doesn’t exactly match the specification for some edge cases. The latest specification is nicely explicit about how to perform 2D transform decomposition and interpolation, so it’d be good to verify that our implementation matches the specification.

Folding into #44.