scico: Scientific colour map palettes

In scico: Colour Palettes Based on the Scientific Colour-Maps

Scientific colour map palettes

Description

This function constructs palettes of the specified size based on the colour maps developed by Fabio Crameri. It follows the same API style as viridis() from the viridisLite package so anyone familiar with this package can easily adapt to that.

Usage

scico(
  n,
  alpha = NULL,
  begin = 0,
  end = 1,
  direction = 1,
  palette = "bilbao",
  categorical = FALSE
)

Arguments

n	The number of colours to generate for the palette
alpha	The opacity of the generated colours. If specified rgba values will be generated. The default (NULL) will generate rgb values which corresponds to alpha = 1
begin, end	The interval within the palette to sample colours from. Defaults to 0 and 1 respectively
direction	Either 1 or -1. If -1 the palette will be reversed
palette	The name of the palette to sample from. See scico_palette_names() for a list of possible names
categorical	Boolean. Should the categorical palettes be returned

Value

A character vector of length n with hexencoded rgb(a) colour values

References

http://www.fabiocrameri.ch/colourmaps.php

Crameri, Fabio. (2021, September 12). Scientific colour maps (Version 7.0.1). Zenodo. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.5281/zenodo.5501399")} Crameri, Fabio. (2018). Geodynamic diagnostics, scientific visualisation and StagLab 3.0. Geosci. Model Dev. Discuss. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.5194/gmd-2017-328")}

Examples

# Use the default palette
scico(15)

# Flip the direction
scico(15, direction = -1)

# Take a subset of a palette
scico(15, begin = 0.3, end = 0.6, palette = 'berlin')

scico documentation built on Aug. 14, 2023, 5:08 p.m.