[csswg-drafts] [css-easing-1] Extrapolation of easing function (#4046)

kevers-google has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-easing-1] Extrapolation of easing function ==
https://www.w3.org/TR/css-easing-1/#cubic-bezier-algo

For input progress < 0:
Point #2 implies that the tangent line though P0 and P2 should be used in the event that P1_x = 0 and P2_x > 0. This should be further constrained on P1_y = 0. It is only a valid tangent line if P1 and P0 are coincident.

If P0, P1 and P2 are all coincident. The tangent line should be through P0 and P3.

For input progress > 1:
Point #2 implies that the tangent line through P1 and P3 should be used in the event that P2_x = 1 and P1_x < 1.  This should be further constrained on P2_y = 1. It is only a valid tangent line if P2 and P3 are coincident.

If P1, P2, and P3 are all coincident. The tangent line should be through P0 and P3.





Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/4046 using your GitHub account

Received on Thursday, 20 June 2019 18:11:49 UTC