Calculates a shape from Bezier coefficients

Usage

bezier_i(B, nb.pts = 120)

Arguments

B: a matrix of Bezier vertices, such as those produced by bezier
nb.pts: the number of points to sample along the curve.

Value

a matrix of (x; y) coordinates

Note

Directly borrowed for Claude (2008), and called beziercurve there. Not implemented for open outlines but may be useful for other purposes.

References

Claude, J. (2008) Morphometrics with R, Use R! series, Springer 316 pp.

Examples

set.seed(34)
x <- coo_sample(efourier_shape(), 5)

plot(x, ylim=c(-3, 3), asp=1, type='b', pch=20)
b <- bezier(x)
bi <- bezier_i(b$B)
lines(bi, col='red')