catalogue.md

# this code will display all the schemes in a category, as an SVG
# use in this docs/src/catalogue.md file as
#  ```@example catalog
#     using Luxor, ColorSchemes # hide
#     ColorSchemeCategory("cmocean") # hide
#  ```
# which displays the "cmocean" category

using Luxor, ColorSchemes

struct ColorSchemeGroup
    name::String
end

function generate_scheme_svg(schemename;
        swatchwidth = 800,
        swatchheight = 20)
    # create swatch
    cols = colorschemes[schemename].colors
    l = length(cols)
    Drawing(swatchwidth, swatchheight, :svg)
    setline(0.5)
    origin()
    t = Tiler(swatchwidth, swatchheight, 1, l, margin=0)
    for (i, c) in enumerate(cols)
        sethue(c)
        box(t, i, :fillstroke)
    end
    finish()

    swatch = svgstring()

    # fill the template
    schemetemplate = """
    <div class="schemename">:$(schemename)</div>
    <div class="swatch">$(swatch)</div>
    """
    return schemetemplate
end

function generate_schemes_in_category(category)
    iobuffer = IOBuffer()

    write(iobuffer, """
    <div class="category">
      """)

    schemes = filter(s -> occursin(category, colorschemes[s].category), collect(keys(colorschemes)))
    for s in sort(schemes)
        write(iobuffer, generate_scheme_svg(s))
    end
    write(iobuffer, """
    </div>
    """)

    return String(take!(iobuffer))
end

function generate_schemes_matching_notes_string(str)
    iobuffer = IOBuffer()

    write(iobuffer, """
    <div class="category">
      """)

    schemes = filter(s -> occursin(str, colorschemes[s].notes), collect(keys(colorschemes)))
    for s in sort(schemes)
        write(iobuffer, generate_scheme_svg(s))
    end
    write(iobuffer, """
    </div>
    """)

    return String(take!(iobuffer))
end

function Base.show(io::IO, m::MIME"text/html", category::ColorSchemeCategory)
     print(io, generate_schemes_in_category(category.name))
end

function Base.show(io::IO, m::MIME"text/html", group::ColorSchemeGroup)
     print(io, generate_schemes_matching_notes_string(group.name))
end

Catalogue of ColorSchemes

At the REPL you can search for colorschemes by name:

findcolorscheme("julia")

✦ cmocean

From "Beautiful colormaps for oceanography": cmocean

using Luxor, ColorSchemes # hide
ColorSchemeCategory("cmocean") # hide

✦ scientific

From Scientific colormaps

using Luxor, ColorSchemes # hide
ColorSchemeCategory("scientific") # hide

✦ matplotlib

From matplot

using Luxor, ColorSchemes # hide
ColorSchemeCategory("matplotlib") # hide

✦ colorbrewer

From ColorBrewer

using Luxor, ColorSchemes # hide
ColorSchemeCategory("colorbrewer") # hide

✦ gnuplot

From GNUPlot

using Luxor, ColorSchemes # hide
ColorSchemeCategory("gnuplot") # hide

✦ colorcet

From "collection of perceptually accurate colormaps"

using Luxor, ColorSchemes # hide
ColorSchemeCategory("colorcet") # hide

✦ Seaborn

From "colorschemes used by Seaborn, a Python data visualization library based on matplotlib."

using Luxor, ColorSchemes # hide
ColorSchemeCategory("seaborn") # hide

✦ ggthemes/tableau

From "ggthemes tableau palettes"

using Luxor, ColorSchemes # hide
ColorSchemeCategory("tableau") # hide

✦ Color-Vision Deficient-friendly schemes

Colorschemes designed with color-vision deficient users in mind, by authors such as Paul Tol, Masataka Okabe, Kei Ito, and Martin Krzywinski. This list also includes schemes with "cvd" in the Notes field.

using Luxor, ColorSchemes # hide
ColorSchemeCategory("cvd") # hide
ColorSchemeGroup("cvd") # hide

✦ Flags

Colors extracted from flags of different countries and regions, downloaded from Flagpedia. Intended to represent these regions in visualizations, but not necessarily effective. Many flags have similar colorschemes. The flags are named according to the region's ISO3166 two-letter abbreviation (often the same as top-level WWW domain), with any hyphens removed.

using Luxor, ColorSchemes # hide
ColorSchemeCategory("flags") # hide

✦ MetBrewer

Palettes inspired by works at the Metropolitan Museum of Art in New York. See Blake Mills' github repository.

using Luxor, ColorSchemes # hide
ColorSchemeCategory("MetBrewer") # hide

✦ Pacific North West

The colors of Washington State and the Pacific Northwest of the USA. See Jake Lawlor's github repository.

using Luxor, ColorSchemes # hide
ColorSchemeCategory("PNW Pacific North West") # hide

✦ Wes Anderson

Palettes derived from the films of Wes Anderson. See Karthik's github repository.

using Luxor, ColorSchemes # hide
ColorSchemeCategory("Wes Anderson") # hide

✦ general and miscellaneous

using Luxor, ColorSchemes # hide
ColorSchemeCategory("general") # hide

using Luxor, ColorSchemes # hide
ColorSchemeCategory("nord") # hide

using Luxor, ColorSchemes # hide
ColorSchemeCategory("kindlmann") # hide

✦ Julia logo colorschemes

using Luxor, ColorSchemes # hide
ColorSchemeCategory("julia") # hide