Momocs (version 1.4.1)

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)

Value

a matrix of (x; y) coordinates.

Arguments

coo

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

k

numeric shear factor

See Also

Other transforming functions: coo_flipx()

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_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_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 <- 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")