coo_extract {Momocs}

Extract coordinates from a shape

Description

Extract ids coordinates from a single shape or a Coo object.

Usage

coo_extract(coo, ids)

Arguments

coo

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

ids

integer, the ids of points to sample.

Details

It probably only make sense for Coo objects with the same number of coordinates and them being homologous, typically on Ldk.

Value

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

See Also

Other sampling functions: coo_interpolate(), coo_sample_prop(), coo_samplerr(), coo_sample()

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_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_rotate(), 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()

Examples

coo_extract(bot[1], c(3, 9, 12)) # or :
bot[1] %>% coo_extract(c(3, 9, 12))