View source: R/gen_components.R
gen_components | R Documentation |
This is a generator versions of tween_components()
. It returns a generator
that can be used with get_frame()
and get_raw_frames()
to extract frames
for a specific time point scaled between 0 and 1.
gen_components( .data, ease, nframes, time, id = NULL, range = NULL, enter = NULL, exit = NULL, enter_length = 0, exit_length = 0 )
.data |
A data.frame with components at different stages |
ease |
The easing function to use. Either a single string or one for each column in the data set. |
nframes |
The number of frames to calculate for the tween |
time |
An unquoted expression giving the timepoint for the different
stages of the components. Will be evaluated in the context of |
id |
An unquoted expression giving the component id for each row. Will
be evaluated in the context of |
range |
The range of time points to include in the tween. If |
enter, exit |
functions that calculate a start state for new observations
that appear in |
enter_length, exit_length |
The lenght of the opening and closing
transitions if |
A component_generator
object
Other Other generators:
gen_along()
,
gen_at()
,
gen_events()
,
gen_keyframe()
from_zero <- function(x) {x$x <- 0; x} 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, enter = from_zero, enter_length = 4) get_frame(gen, 0.3)
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