Flexible Truchet tiles

Usage

st_truchet_flex(x = 0, y = 0, type = "Al", b = 1/2)

Arguments

x: A number with the x coordinate of the center of the tile
y: A number with the y coordinate of the center of the tile
type: A single character to designate a type of tile; currently supported options are "Ac", "Bc", "Cc", "Dc", "As", "Bs", "Cs", "Ds"
b: A number between zero and one that controls the shape of the boundary between the two parts of the tile

Value

A list with one or more objects of type sf representing one or more tiles depending on type

Note

For a discussion of Truchet patterns see: Robert Bosch & Urchin Colley (2013) Figurative mosaics from flexible Truchet tiles, Journal of Mathematics and the Arts, 7:3-4, 122-135, 10.1080/17513472.2013.838830

Examples

st_truchet_flex(type = "Al")
#> Linking to GEOS 3.8.0, GDAL 3.0.4, PROJ 6.3.1; sf_use_s2() is TRUE
#> Simple feature collection with 2 features and 1 field
#> Geometry type: POLYGON
#> Dimension:     XY
#> Bounding box:  xmin: -0.5 ymin: -0.5 xmax: 0.5 ymax: 0.5
#> CRS:           NA
#>                         geometry color
#> 1 POLYGON ((-0.5 -0.5, -0.5 0...     2
#> 2 POLYGON ((-0.5 0.5, 0.5 0.5...     1
st_truchet_flex(type = "Cl")
#> Simple feature collection with 2 features and 1 field
#> Geometry type: POLYGON
#> Dimension:     XY
#> Bounding box:  xmin: -0.5 ymin: -0.5 xmax: 0.5 ymax: 0.5
#> CRS:           NA
#>                         geometry color
#> 1 POLYGON ((-0.5 -0.5, -0.5 0...     1
#> 2 POLYGON ((-0.5 0.5, 0.5 0.5...     2