Calculates the angle of every edge of a shape

Returns the angle (in radians) of every edge of a shape,

Usage

coo_angle_edges(coo, method = c("atan2", "acos")[1])

# S3 method for default
coo_angle_edges(coo, method = c("atan2", "acos")[1])

# S3 method for Coo
coo_angle_edges(coo, method = c("atan2", "acos")[1])

Arguments

coo

a matrix or a list of (x; y) coordinates or any Coo

method

'atan2' (or 'acos') for a signed (or not) angle.

Value

numeric the angles in radians for every edge.

Note

coo_thetapts is deprecated and will be removed in future releases.

See also

Other coo_ descriptors: coo_angle_tangent(), coo_area(), coo_boundingbox(), coo_chull(), coo_circularity(), coo_convexity(), coo_eccentricity, coo_elongation(), coo_length(), coo_lw(), coo_rectangularity(), coo_rectilinearity(), coo_scalars(), coo_solidity(), coo_tac(), coo_width()

Examples

b <- coo_sample(bot[1], 64)
coo_angle_edges(b)
#>  [1] -3.111523 -3.093172 -3.092305  3.081724  3.105229  3.077881  3.110353
#>  [8]  3.046641  3.051196  3.135756 -3.074763 -3.017238 -2.926235 -2.628633
#> [15] -2.611156 -2.953906 -3.017238 -3.085049 -2.915581 -2.709056 -2.530867
#> [22] -2.927854 -3.086548 -3.100971  3.114884 -3.060821  3.116579 -3.106746
#> [29]  3.131759  3.116579  3.080363  3.030147  3.035444  3.141593 -3.051196
#> [36] -3.014394 -2.988492 -2.873097 -3.131789  2.993915  2.944112 -3.135728
#> [43]  3.113711  3.137875 -3.106026  3.106746  2.980423 -1.981456 -2.694480
#> [50] -3.062770 -2.583631 -2.029263  3.018319  3.023726 -3.109950  3.085522
#> [57] -3.087530  3.112543  2.978918  3.011861  3.087633 -2.957901 -2.916681
#> [64] -3.046946