scale-fill-viridis-c

Continuous viridis fill scale.

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

Usage

scale-fill-viridis-c(
  option,
  name,
  limits,
  oob,
  breaks,
  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		Pair (lo, hi) clipping the trained domain, or none.
oob		Out-of-range policy: "drop" (default) removes rows whose value falls outside limits; "squish" clamps continuous values to the nearest endpoint.
breaks		Array of break values for the legend, or auto.
labels		Array of legend labels aligned with breaks, or auto.

Returns

Scale object consumed by plot.

Examples

Default viridis ramp filling bars by their numeric value.

#let d = range(0, 12).map(i => (grp: str(i), y: i + 1))
#plot(
  data: d,
  mapping: aes(x: "grp", y: "y", fill: "y"),
  layers: (geom-col(),),
  scales: (scale-fill-viridis-c(option: "viridis"),),
  width: 10cm,
  height: 6cm,
)

The viridis ramp shown as a continuous swatch via geom-rect.

#let d = range(0, 16).map(i => (
  xmin: i, xmax: i + 1, ymin: 0, ymax: 1, z: i,
))
#plot(
  data: d,
  mapping: aes(xmin: "xmin", xmax: "xmax", ymin: "ymin", ymax: "ymax", fill: "z"),
  layers: (geom-rect(),),
  scales: (scale-fill-viridis-c(),),
  guides: guides(fill: none),
  theme: theme-void(),
  width: 10cm,
  height: 1cm,
)

See also

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