| coo_rotate {Momocs} | R Documentation |
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 |
theta |
|
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_is_closed(),
coo_jitter(),
coo_left(),
coo_likely_clockwise(),
coo_nb(),
coo_perim(),
coo_range(),
coo_rev(),
coo_right(),
coo_rotatecenter(),
coo_sample_prop(),
coo_samplerr(),
coo_sample(),
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_untiltx(),
coo_up(),
is_equallyspacedradii()
Other rotation functions:
coo_rotatecenter()
Examples
coo_plot(bot[1])
coo_plot(coo_rotate(bot[1], pi/2))
# on Coo
b <- bot %>% slice(1:5) # for speed sake
stack(b)
stack(coo_rotate(b, pi/2))