Slides coordinates in a particular direction

Description

Shapes are centered and then, according to direction, the point northwards, southwards, eastwards or westwards the centroid, becomes the first point with coo_slide.

Usage

1
coo_slidedirection(coo, direction, center, id)

Arguments

coo

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

direction

character among 'N' (by default), 'S', 'E', or 'W'.

center

logical whether to center or not before sliding

id

numeric whether to return the id of the point or the slided 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_calliper, coo_centdist, coo_center, coo_centpos, coo_centsize, 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_slidegap, coo_slide, coo_smoothcurve, coo_smooth, coo_template, coo_trans, coo_trimbottom, coo_trimtop, coo_trim, coo_up, is_closed

Other sliding functions: coo_slidegap, coo_slide

Examples

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
b <- coo_rotate(bot[1], pi/6) # dummy example just to make it obvious
coo_plot(b) # not the first point
coo_plot(coo_slidedirection(b, 'N'))
coo_plot(coo_slidedirection(b, 'E'))
coo_plot(coo_slidedirection(b, 'W'))
coo_plot(coo_slidedirection(b, 'S'))

# on Coo objects
stack(bot)
stack(coo_slidedirection(bot, 'E'))

Want to suggest features or report bugs for rdrr.io? Use the GitHub issue tracker.