Map from Cartesian to cylindrical coordinates

Map from Cartesian to cylindrical coordinates

Usage

map_to_cylindrical(data)

Arguments

data

An aniframe in a Cartesian coordinate system.

Value

An aniframe with rho and phi in place of x and y, keeping z.

See also

Other coordinate systems: map_to_cartesian(), map_to_polar(), map_to_spherical()

Examples

af <- anicore::example_aniframe(
  n_obs = 5, n_individuals = 1, n_keypoints = 1, n_dims = 3
)
map_to_cylindrical(af)
#> # Individuals: 1
#> # Keypoints:   centroid
#> # Sessions:    1
#> # Trials:      1
#>   individual keypoint session trial  time   rho   phi      z confidence
#>        <int> <fct>      <int> <int> <int> <dbl> <dbl>  <dbl>      <dbl>
#> 1          1 centroid       1     1     1 1.86   3.15  0.244      0.610
#> 2          1 centroid       1     1     2 0.978  4.15  1.62       0.635
#> 3          1 centroid       1     1     3 1.51   4.68  0.112      0.909
#> 4          1 centroid       1     1     4 1.08   1.04 -0.134      0.734
#> 5          1 centroid       1     1     5 0.931  2.95 -1.91       0.868