sfc_4x4_meander: 4x4 space-filling curves in meander type

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

4x4 space-filling curves in meander type

Description

4x4 space-filling curves in meander type

Usage

sfc_4x4_meander(seed, code = integer(0), rot = 0L, flip = FALSE, type = 1L)

## S4 method for signature 'sfc_4x4_meander'
sfc_expand(p, code, flip = FALSE)

draw_rules_4x4_meander(type = 1, flip = FALSE)

Arguments

seed	The seed sequence. In most cases, the seed sequence is a single base pattern, which can be specified as a single letter, then 'rot' controls the initial rotation of the base pattern. It also supports a sequence with more than one base patterns as the seed sequence. In this case, it can be specified as a string of more than one base letters, then 'rot' can be set to a single rotation scalar which controls the rotation of the first letter, or a vector with the same length as the number of base letters.
code	A vector of the expansion code. The left side corresponds to the higher levels (more to the top-level) of the curve and the right side corresponds to the lower level (more to the bottom-level) of the curve. The value can be set as a vector e.g. 'c(1, 2, 1)', or as a string e.g. '"121"', or as a number e.g. '121'.
rot	Rotation of the seed sequence, measured in the polar coordinate system, in degrees.
flip	The same setting as in ['sfc_3x3_peano()'] or ['sfc_3x3_meander()'].
type	Which type of rules to use? 1 for ['SFC_RULES_4x4_MEANDER_1'] and 2 for ['SFC_RULES_4x4_MEANDER_2'].
p	An 'sfc_4x4_meander' object.

Details

It is an extension of the 3x3 Meander curves to mode 4. For simplicity, it only supports 'I/R/L' base patterns.

Value

'sfc_4x4_meander()' returns an 'sfc_4x4_meander' object.

Examples

draw_multiple_curves(
    sfc_4x4_meander("I", "11", type = 1),
    sfc_4x4_meander("I", "12", type = 1),
    sfc_4x4_meander("I", "11", type = 2),
    sfc_4x4_meander("I", "12", type = 2),
    nrow = 2
)
seed = paste(rep(paste0("R", sapply(0:10, function(i) strrep("I", i))), each = 2), collapse="")
sfc_4x4_meander(seed, 1) |> plot()
draw_rules_4x4_meander(type = 1)
draw_rules_4x4_meander(type = 2)

sfcurve documentation built on April 10, 2026, 5:06 p.m.