Truchet tiles made with polygons

Usage

st_truchet_l(x = 0, y = 0, type = "dl")

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 "dl", "dr"

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 http://arearugscarpet.blogspot.com/2014/04/the-curse-of-truchets-tiles.html

Examples

st_truchet_l(type = "dl")
#> Simple feature collection with 2 features and 0 fields
#> Geometry type: LINESTRING
#> Dimension:     XY
#> Bounding box:  xmin: -0.5 ymin: -0.5 xmax: 0.5 ymax: 0.5
#> CRS:           NA
#>                         geometry
#> 1 LINESTRING (-0.5 -5.551115e...
#> 2 LINESTRING (0.5 0, 0.473832...
st_truchet_l(type = "dr")
#> Simple feature collection with 2 features and 0 fields
#> Geometry type: LINESTRING
#> Dimension:     XY
#> Bounding box:  xmin: -0.5 ymin: -0.5 xmax: 0.5 ymax: 0.5
#> CRS:           NA
#>                         geometry
#> 1 LINESTRING (0 0.5, -0.00068...
#> 2 LINESTRING (1.110223e-16 -0...