Momocs (version 1.1.6)

coo_rotate: Rotates coordinates

Description

Rotates the coordinates by a 'theta' angle (in radians) in the trigonometric direction (anti-clockwise). If not provided, assumed to be the centroid size. It involves three steps: centering from current position, dividing coordinates by 'scale', translating to the original position.

Usage

coo_rotate(coo, theta = 0)

Arguments

coo

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

theta

numericthe angle (in radians) to rotate shapes.

Value

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

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_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_clockwise, is_closed, is_equallyspacedradii Other rotation functions: coo_rotatecenter

Examples

coo_plot(bot[1])
coo_plot(coo_rotate(bot[1], pi/2))
# on Coo
stack(bot)
stack(coo_rotate(bot, pi/2))