Split an animation into chunks — split

Sometimes it is of interest to split an animation out in smaller chunks so they can be orchestrated, e.g. in a presentation. This function lets you provide a 'factor' to split by in the same way as base::split() though this one will be evaluated in the context of the animations frame_vars() data, so you can split directly on frame metadata.

split_animation(animation = last_animation(), by)

Arguments

animation: The animation to extract metadata from. Defaults to the last rendered animation
by: An unquoted expression to be evaluated in the context of the frame metadata. The result must be of equal length to the number of frames in the animation and define a grouping

Value

Depending on the output type of the renderer used to produce the animation. Often a list with elements referencing the chunks of the animation. that can then be saved individually.