scale-fill-viridis-d

Discrete viridis fill scale.

option selects between "viridis", "magma", "plasma", "inferno", and "cividis".

Usage

scale-fill-viridis-d(
  option,
  name,
  limits,
  oob,
  labels,
)

Parameters

Parameter	Default	Description
option		Palette name: "viridis", "magma", "plasma", "inferno", or "cividis".
name		Legend title. Overrides any name set via labs when both are present.
limits		Array of level names controlling order and inclusion, or none.
oob		Out-of-range policy: "drop" (default) removes rows whose value falls outside limits; "squish" clamps continuous values to the nearest endpoint.
labels		Array of legend labels aligned with limits, or auto.

Returns

Scale object consumed by plot.

Examples

Cividis option filling four categorical bars.

#let d = (
  (grp: "a", y: 1),
  (grp: "b", y: 2),
  (grp: "c", y: 3),
  (grp: "d", y: 4),
)
#plot(
  data: d,
  mapping: aes(x: "grp", y: "y", fill: "grp"),
  layers: (geom-col(),),
  scales: (scale-fill-viridis-d(option: "cividis"),),
  width: 10cm,
  height: 6cm,
)

Each viridis option laid out as a swatch strip via geom-rect.

#let opts = ("viridis", "magma", "plasma", "inferno", "cividis")
#let d = opts.enumerate().map(((i, k)) => (
  xmin: i, xmax: i + 1, ymin: 0, ymax: 1, k: k,
))
#plot(
  data: d,
  mapping: aes(xmin: "xmin", xmax: "xmax", ymin: "ymin", ymax: "ymax", fill: "k"),
  layers: (geom-rect(),),
  scales: (scale-fill-viridis-d(option: "magma"),),
  guides: guides(fill: none),
  theme: theme-void(),
  width: 6cm,
  height: 1cm,
)

See also

scale-fill-viridis-c, scale-fill-viridis-b, scale-colour-viridis-d.