Momocs (version 1.1.6)

coo_shearx: Shears shapes

Description

coo_shearx applies a shear mapping on a matrix of (x; y) coordinates (or a list), parallel to the x-axis (i.e. x' = x + ky; y' = y + kx). coo_sheary does it parallel to the y-axis.

Usage

coo_shearx(coo, k)
coo_sheary(coo, k)

Arguments

coo

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

k

numeric shear factor

Value

a matrix of (x; y) coordinates.

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_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_slice, 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 Other transforming functions: coo_flipx

Examples

coo <- coo_template(shapes[11])
coo_plot(coo)
coo_draw(coo_shearx(coo, 0.5), border="blue")
coo_draw(coo_sheary(coo, 0.5), border="red")