get_frame | R Documentation |
Using the generators in tweenr you can avoid calculating all needed frames up
front, which can be prohibitive in memory. With a generator you can use
get_frame()
to extract any frame at a fractional location between 0 and 1
one by one as you need them. You can further get all raw data before and/or
after a given point in time using get_raw_frames()
.
get_frame(generator, at, ...)
get_raw_frames(generator, at, before = 0, after = 0, ...)
generator |
A |
at |
A scalar numeric between 0 and 1 |
... |
Arguments passed on to methods |
before , after |
Scalar numerics that define the time before and after
|
data <- data.frame(
x = c(1, 2, 2, 1, 2, 2),
y = c(1, 2, 2, 2, 1, 1),
time = c(1, 4, 8, 4, 8, 10),
id = c(1, 1, 1, 2, 2, 2)
)
gen <- gen_components(data, 'cubic-in-out', time = time, id = id)
get_frame(gen, 0.3)
get_raw_frames(gen, 0.5, before = 0.5, after = 0.2)
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