sfcurve (version 1.0.0)

hilbert_curve: 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)

Value

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

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().

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
)