| coo_calliper {Momocs} | R Documentation |
Calculates the calliper length
Description
Also called the Feret's diameter, the longest distance between two points of the shape provided.
Usage
coo_calliper(coo, arr.ind = FALSE)
Arguments
coo |
a |
arr.ind |
|
Value
numeric, the centroid size. If arr.ind=TRUE, a data_frame.
See Also
Other coo_ utilities:
coo_aligncalliper(),
coo_alignminradius(),
coo_alignxax(),
coo_align(),
coo_baseline(),
coo_bookstein(),
coo_boundingbox(),
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_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
b <- bot[1]
coo_calliper(b)
p <- coo_calliper(b, arr.ind=TRUE)
p
p$length
ids <- p$arr_ind[[1]]
coo_plot(b)
segments(b[ids[1], 1], b[ids[1], 2], b[ids[2], 1], b[ids[2], 2], lty=2)
# on a Coo
bot %>%
coo_sample(32) %>% # for speed sake
coo_calliper()
bot %>%
coo_sample(32) %>% # for speed sake
coo_calliper(arr.ind=TRUE)