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Say which way angles run

Source: R/orientation.R
set_angle_direction.Rd

With one of the two axes declared the other follows, and is recorded. With both declared, turning the sense over reverses the vertical axis and reflects that column — the image-plane flip, stated as what it does to the angles rather than to a corner.

Usage

set_angle_direction(data, angle_direction)

Arguments

data

An aniframe object.

angle_direction

Either "clockwise" or "counter_clockwise".

Value

The aniframe, with the axis directions that give this sense and the vertical axis reflected if it had to turn over.

See also

get_angle_direction(), set_axis_directions()

Examples

af <- example_aniframe(n_obs = 3, n_individuals = 1, n_keypoints = 1)
af <- set_axis_directions(af, c(x = "right"))

# y follows from the sense of rotation
af <- set_angle_direction(af, "counter_clockwise")
get_axis_directions(af)
#>       x       y 
#> "right"    "up"