Momocs (version 1.1.6)

is_clockwise: Tests if shapes are developping clockwise or anticlockwise

Description

Tests if shapes are developping clockwise or anticlockwise

Usage

is_clockwise(coo)
is_anticlockwise(coo)

Arguments

coo

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

Value

a single or a vector of logical.

See Also

Other coo_ utilities: coo_aligncalliper, coo_alignminradius, coo_alignxax, coo_align, coo_baseline, coo_bookstein, coo_boundingbox, coo_calliper, coo_centdist, coo_center, coo_centpos, coo_close, coo_down, coo_dxy, coo_extract, coo_flipx, coo_force2close, coo_interpolate, coo_jitter, coo_left, coo_nb, coo_perimcum, coo_perimpts, coo_perim, coo_rev, coo_right, coo_rotatecenter, coo_rotate, coo_samplerr, coo_sample, coo_scalex, coo_scale, coo_shearx, coo_slice, coo_slidedirection, coo_slidegap, coo_slide, coo_smoothcurve, coo_smooth, coo_template, coo_trans, coo_trimbottom, coo_trimtop, coo_trim, coo_up, is_closed, is_equallyspacedradii

Examples

shapes[4] %>% coo_sample(64) %>% coo_plot()  #clockwise cat
shapes[4] %>% is_clockwise()
shapes[4] %>% coo_rev() %>% is_clockwise()

# on Coo
shapes %>% is_clockwise %>% `[`(4)