Package 'cetcolor'

RGB Value Map of the CET Perceptually Uniform Colour Maps

Description

A list of data.frames that have the RGB values of the CET Perceptually Uniform Colour Maps as released in May 2018 with the original maps released in June 2016.

Usage

cet_color_maps

Format

A list with each entry coded as a data frame with 256 observations and 3 variables:

• R: Red value

• G: Green value

• B: Blue value

The following color maps have been included:

Cyclic Colour Maps

• c1, formerly: ⁠cyclic_mrybm_35-75_c68_n256⁠

• c1s, formerly: ⁠cyclic_mrybm_35-75_c68_n256_s25⁠

• c2, formerly: ⁠cyclic_mygbm_30-95_c78_n256⁠

• c2s, colorwheel, formerly: ⁠cyclic_mygbm_30-95_c78_n256_s25⁠

• c4, formerly: ⁠cyclic_wrwbw_40-90_c42_n256⁠

• c4s, formerly: ⁠cyclic_wrwbw_40-90_c42_n256_s25⁠

• c5, formerly: ⁠cyclic_grey_15-85_c0_n256⁠

• c5s, formerly: ⁠cyclic_grey_15-85_c0_n256_s25⁠

Diverging Colour Maps

• d1, coolwarm, formerly: ⁠diverging_bwr_40-95_c42_n256⁠

• d1a, long: ⁠diverging_bwr_20-95_c54_n256⁠

• d2, gwv, formerly: ⁠diverging_gwv_55-95_c39_n256⁠

• d3, formerly: ⁠diverging_gwr_55-95_c38_n256⁠

• d4, bkr, formerly: ⁠diverging_bkr_55-10_c35_n256⁠

• d6, bky, formerly: ⁠diverging_bky_60-10_c30_n256⁠

• d7, bjy, formerly: ⁠diverging-linear_bjy_30-90_c45_n256⁠

• d8, formerly: ⁠diverging-linear_bjr_30-55_c53_n256⁠

• d9, formerly: ⁠diverging_bwr_55-98_c37_n256⁠

• d10, formerly: ⁠diverging_cwm_80-100_c22_n256⁠

• d11, formerly: diverging-isoluminant_cjo_70_c25_n256

• d12, formerly: diverging-isoluminant_cjm_75_c23_n256

• d13, long: ⁠diverging_bwg_20-95_c41_n256⁠

• diverging-isoluminant_cjm_75_c24_n256

• ⁠diverging_gkr_60-10_c40_n256⁠

Isoluminant Colour Maps

• i1, formerly: isoluminant_cm_70_c39_n256

• i2, isolum, formerly: isoluminant_cgo_80_c38_n256

• i3, formerly: isoluminant_cgo_70_c39_n256

Linear Colour Maps

• l1, gray, formerly: ⁠linear_grey_0-100_c0_n256⁠

• l2, dimgray formerly: ⁠linear_grey_10-95_c0_n256⁠

• l3, long: ⁠linear_kryw_0-100_c71_n256⁠

• l4, long: ⁠linear_kry_0-97_c73_n256⁠

• l5, kgy, formerly: ⁠linear_green_5-95_c69_n256⁠

• l6, formerly: ⁠linear_blue_5-95_c73_n256⁠

• l7, formerly: ⁠linear_bmw_5-95_c86_n256⁠

• l8, formerly: ⁠linear_bmy_10-95_c71_n256⁠

• l9, long: ⁠linear_bgyw_20-98_c66_n256⁠

• l10, formerly: ⁠linear_gow_60-85_c27_n256⁠

• l11, formerly: ⁠linear_gow_65-90_c35_n256⁠

• l12, blues, formerly: ⁠linear_blue_95-50_c20_n256⁠

• l13, kr, formerly: ⁠linear_ternary-red_0-50_c52_n256⁠

• l14, long: ⁠linear_ternary-green_0-46_c42_n256⁠

• l15, kb, formerly: ⁠linear_ternary-blue_0-44_c57_n256⁠

• l16, long: ⁠linear_kbgyw_5-98_c62_n256⁠

• l17, long: ⁠linear_worb_100-25_c53_n256⁠

• l18, long: ⁠linear_wyor_100-45_c55_n256⁠

• l19, long: ⁠linear_wcmr_100-45_c42_n256⁠

• bgy, ⁠linear_bgy_10-95_c74_n256⁠

• ⁠linear_bgyw_15-100_c67_n256⁠

• bgyw, ⁠linear_bgyw_15-100_c68_n256⁠

• bmw, ⁠linear_bmw_5-95_c89_n256⁠

• inferno, ⁠linear_bmy_10-95_c78_n256⁠

• ⁠linear_kry_5-95_c72_n256⁠

• ⁠linear_kry_5-98_c75_n256⁠

• ⁠linear_kryw_5-100_c64_n256⁠

• fire, ⁠linear_kryw_5-100_c67_n256⁠

• kg, ⁠linear_ternary-green_0-46_c42_n256⁠

Rainbow Colour Maps

• r1, formerly: ⁠rainbow_bgyrm_35-85_c69_n256⁠

• r2, formerly: ⁠rainbow_bgyr_35-85_c72_n256⁠

• r3, formerly: ⁠diverging-rainbow_bgymr_45-85_c67_n256⁠

• rainbow, ⁠rainbow_bgyr_35-85_c73_n256⁠

• ⁠rainbow_bgyrm_35-85_c71_n256⁠

Colour Blind

• cbl1, long: ⁠linear-protanopic-deuteranopic_kbjyw_5-95_c25_n256⁠

• cbl2, long: ⁠linear-protanopic-deuteranopic_kbw_5-98_c40_n256⁠

• cbd1, long: ⁠diverging-protanopic-deuteranopic_bwy_60-95_c32_n256⁠

• cbc1, long: ⁠cyclic-protanopic-deuteranopic_bwyk_16-96_c31_n256⁠

• cbc2, long: ⁠cyclic-protanopic-deuteranopic_wywb_55-96_c33_n256⁠

• cbtl1, long: ⁠linear-tritanopic_krjcw_5-98_c46_n256⁠

• cbtl2, long: ⁠linear-tritanopic_krjcw_5-95_c24_n256⁠

• cbtd1, long: ⁠diverging-tritanopic_cwr_75-98_c20_n256⁠

• cbtc1, long: ⁠cyclic-tritanopic_cwrk_40-100_c20_n256⁠

• cbtc2, long: ⁠cyclic-tritanopic_wrwc_70-100_c20_n256⁠

Source

http://peterkovesi.com/projects/colourmaps/CETperceptual_csv_0_1.zip

References

http://peterkovesi.com/projects/colourmaps/

---

CET Perceptually Uniform Color Maps

Description

Extract n RGB Hexadecimal colors from the perceptually uniform color maps developed by Peter Kovesi.

Usage

cet_pal(n, name = "rainbow", alpha = 1)

Arguments

n	A numeric value greater than one indicating how many colors to use from the color map.
name	A string indicating the color map to use. There are 51 options available. Please see cet_color_maps() for more information. By default, the "rainbow" color scheme is used.
alpha	A numeric value between $[0, 1]$ that indicates the level of transparency.

Value

A character vector containing the RGB hexadecimal representation of the requested color map.

References

Peter Kovesi. Good Colour Maps: How to Design Them. arXiv:1509.03700 cs.GR 2015

Examples

# Grab 8 colors from rainbow or rainbow_bgyr_35-85_c73_n256
colors = cet_pal(8)
plot(1:8, 1:8, col=colors, pch=19, cex=3, xlab="", ylab="")

# Grab 25 colors from coolwarm or diverging_bwr_40-95_c42_n256
colors = cet_pal(25, name = "coolwarm")
plot(1:25, 1:25, col=colors, pch=19, cex=3, xlab="", ylab="")

---

Display CET Color Maps

Description

Offers a variety of ways to preview CET Color Maps.

Usage

display_cet_pal(n = 256, name = "rainbow", alpha = 1)

display_cet_attribute(n = 256, attribute = "rainbow", alpha = 1)

display_cet_all(n = 256, alpha = 1)

Arguments

n	A numeric value greater than one indicating how many colors to use from the color map.
name	A string indicating the color map to use. There are 51 options available. Please see cet_color_maps() for more information. By default, the "rainbow" color scheme is used.
alpha	A numeric value between $[0, 1]$ that indicates the level of transparency.
attribute	A character string indicating the attribute. Accepted values are: "rainbow" (Default), "linear", "diverging", "cyclic" "isoluminant", and "colorblind".

---