coo_slice: Slices shapes between successive coordinates

Description Usage Arguments Value See Also Examples

View source: R/coo-utilities.R

Description

Takes a shape with n coordinates. When you pass this function with at least two ids (<= n), the shape will be open on the corresponding coordinates and slices returned as a list

Usage

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coo_slice(coo, ids)

Arguments

coo

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

ids

numeric of length >= 2, where to slice the shape(s)

Value

a list of shapes or a list of Opn

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_chull_onion, 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_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

Examples

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# single shape, a list of matrices is returned
sh <- coo_slice(hearts[1], c(12, 24, 36, 48))
coo_plot(sh[[1]])
panel(Opn(sh))
# on a Coo, a list of Opn is returned
# makes no sense if shapes are not normalized first
sh2 <- coo_slice(hearts, c(12, 24, 36, 48))
panel(sh2[[1]])

Momocs documentation built on Sept. 28, 2017, 9:04 a.m.