Get Cheysson pattern specifications

Returns pattern specifications from a Cheysson palette for use with ggpattern.

Usage

cheysson_pattern(palette = "1881_12", n = NULL, type = 1)

Arguments

palette

Name of palette (e.g., "1881_12") or palette type ("sequential", "diverging", "grouped", "category").

n

Number of patterns to return. If NULL, returns all patterns. If n is smaller than the palette, sequential and diverging palettes return patterns spread over the whole palette, keeping both ends; other types return the first n. If n is larger, patterns are recycled.

type

If palette is a type name, which palette of that type to use (default 1).

Value

A list of pattern specifications suitable for ggpattern

Examples

# Get all patterns from a palette
cheysson_pattern("1881_12")
#> [[1]]
#> [[1]]$type
#> [1] "stripe"
#> 
#> [[1]]$fill
#> [1] "transparent"
#> 
#> [[1]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[1]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[1]]$pattern_angle
#> [1] 135
#> 
#> [[1]]$pattern_density
#> [1] 0.9795918
#> 
#> [[1]]$pattern_spacing
#> [1] 0.02040816
#> 
#> [[1]]$pattern_linewidth
#> [1] 2
#> 
#> [[1]]$direction
#> [1] "diagonal_left"
#> 
#> 
#> [[2]]
#> [[2]]$type
#> [1] "crosshatch"
#> 
#> [[2]]$fill
#> [1] "transparent"
#> 
#> [[2]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[2]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[2]]$pattern_density
#> [1] 0.9897959
#> 
#> [[2]]$pattern_spacing
#> [1] 0.01020408
#> 
#> [[2]]$pattern_linewidth
#> [1] 2
#> 
#> 
#> [[3]]
#> [[3]]$type
#> [1] "crosshatch"
#> 
#> [[3]]$fill
#> [1] "transparent"
#> 
#> [[3]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[3]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[3]]$pattern_density
#> [1] 0.9923077
#> 
#> [[3]]$pattern_spacing
#> [1] 0.007692308
#> 
#> [[3]]$pattern_linewidth
#> [1] 3
#> 
#> 

# Get first 3 patterns
cheysson_pattern("1881_12", n = 3)
#> [[1]]
#> [[1]]$type
#> [1] "stripe"
#> 
#> [[1]]$fill
#> [1] "transparent"
#> 
#> [[1]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[1]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[1]]$pattern_angle
#> [1] 135
#> 
#> [[1]]$pattern_density
#> [1] 0.9795918
#> 
#> [[1]]$pattern_spacing
#> [1] 0.02040816
#> 
#> [[1]]$pattern_linewidth
#> [1] 2
#> 
#> [[1]]$direction
#> [1] "diagonal_left"
#> 
#> 
#> [[2]]
#> [[2]]$type
#> [1] "crosshatch"
#> 
#> [[2]]$fill
#> [1] "transparent"
#> 
#> [[2]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[2]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[2]]$pattern_density
#> [1] 0.9897959
#> 
#> [[2]]$pattern_spacing
#> [1] 0.01020408
#> 
#> [[2]]$pattern_linewidth
#> [1] 2
#> 
#> 
#> [[3]]
#> [[3]]$type
#> [1] "crosshatch"
#> 
#> [[3]]$fill
#> [1] "transparent"
#> 
#> [[3]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[3]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[3]]$pattern_density
#> [1] 0.9923077
#> 
#> [[3]]$pattern_spacing
#> [1] 0.007692308
#> 
#> [[3]]$pattern_linewidth
#> [1] 3
#> 
#> 

# Get patterns from a sequential palette
cheysson_pattern("sequential")
#> [[1]]
#> [[1]]$type
#> [1] "stripe"
#> 
#> [[1]]$fill
#> [1] "transparent"
#> 
#> [[1]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[1]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[1]]$pattern_angle
#> [1] 135
#> 
#> [[1]]$pattern_density
#> [1] 0.9795918
#> 
#> [[1]]$pattern_spacing
#> [1] 0.02040816
#> 
#> [[1]]$pattern_linewidth
#> [1] 2
#> 
#> [[1]]$direction
#> [1] "diagonal_left"
#> 
#> 
#> [[2]]
#> [[2]]$type
#> [1] "crosshatch"
#> 
#> [[2]]$fill
#> [1] "transparent"
#> 
#> [[2]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[2]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[2]]$pattern_density
#> [1] 0.9897959
#> 
#> [[2]]$pattern_spacing
#> [1] 0.01020408
#> 
#> [[2]]$pattern_linewidth
#> [1] 2
#> 
#> 
#> [[3]]
#> [[3]]$type
#> [1] "crosshatch"
#> 
#> [[3]]$fill
#> [1] "transparent"
#> 
#> [[3]]$pattern_fill
#> [1] "#1e3e69"
#> 
#> [[3]]$pattern_color
#> [1] "#1e3e69"
#> 
#> [[3]]$pattern_density
#> [1] 0.9923077
#> 
#> [[3]]$pattern_spacing
#> [1] 0.007692308
#> 
#> [[3]]$pattern_linewidth
#> [1] 3
#> 
#>