standard_curve: Various curves in their standard forms

In sfcurve: 2x2, 3x3 and Nxn Space-Filling Curves

Various curves in their standard forms

Description

Various curves in their standard forms

Usage

hilbert_curve(level = 2L, by = "Cpp")

moore_curve(level = 2L)

beta_omega_curve(level = 2L)

peano_curve(level = 2L, pattern = "vvvvvvvvv", by = "Cpp")

meander_curve(level = 2L, pattern = "fffffffff", code = rep(1, level))

h_curve(iteration = 2L)

Arguments

level	Level of the curve.
by	Which implementation? Only for the testing purpose.
pattern	The orientation of units on level-2, i.e. the orientation of the 9 3x3 units. The value should be a string with 9 letters of "v"/"h" (vertical or horizontal) for the Peano curve, and "f"/"b" (forward or backward) for the Meander curve. The length of the string should be maximal 9. If the length is smaller than 9, the stringis automatically recycled.
code	Internally used.
iteration	Number of iterations.

Details

These are just special forms of sfc_2x2(), sfc_3x3_peano(), sfc_3x3_meander() and sfc_h().

Value

A two-column matrix of coordinates of points on the curve.

Examples

hilbert_curve(2)
draw_multiple_curves(
    hilbert_curve(3),
    hilbert_curve(4),
    nrow = 1
)
draw_multiple_curves(
    moore_curve(3),
    moore_curve(4),
    nrow = 1
)
draw_multiple_curves(
    beta_omega_curve(3),
    beta_omega_curve(4),
    nrow = 1
)
draw_multiple_curves(
    peano_curve(2),
    peano_curve(3),
    nrow = 1
)
draw_multiple_curves(
    peano_curve(3, pattern = "vh"),
    peano_curve(3, pattern = "vvvhhhvvv"),
    nrow = 1
)
draw_multiple_curves(
    meander_curve(2),
    meander_curve(3),
    nrow = 1
)
draw_multiple_curves(
    meander_curve(3, pattern = "fbfbfbfbf"),
    meander_curve(3, pattern = "bbbbbffff"),
    nrow = 1
)
draw_multiple_curves(
    h_curve(1),
    h_curve(2),
    nrow = 1, closed = TRUE
)

sfcurve documentation built on Sept. 14, 2024, 1:07 a.m.