coo_dxy {Momocs}

Calculate abscissa and ordinate on a shape

Description

A simple wrapper to calculate dxi - dx1 and dyi - dx1.

Usage

coo_dxy(coo)

Arguments

coo

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

Value

a data.frame with two components dx and dy for single shapes or a list of such data.frames for Coo

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_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_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_dxy(coo_sample(bot[1], 12))

bot %>%
    slice(1:5) %>% coo_sample(12) %>%  # for readability and speed only
    coo_dxy()