Entries

The key ingredient for data representations are AxisEntries.

The AxisEntries type

An AxisEntries object is made of four components:

• axis,
• entries,
• categorical scales,
• continuous scales.

The entries are supposed to be rescaled already and can be plotted as they are onto the axis. The scales can be used to draw legend, colorbar, axis ticks and labels.

using AlgebraOfGraphics, CairoMakie
using AlgebraOfGraphics: CategoricalScale, ContinuousScale, fitscale
using AlgebraOfGraphics: NamedArguments, MixedArguments
fig = Figure(; size=(600, 600))
N = 11
rg = range(1, 2, length=N)
markerpalette = [:circle, :utriangle, :dtriangle, :rect]
x1, x2 = rg, rg
y1, y2 = cosh.(rg), sinh.(rg)
c1, c2 = 1:N, 1:N
m1, m2 = fill(:utriangle, N), fill(:utriangle, N)

categoricalscales = MixedArguments()
insert!(
    categoricalscales,
    :marker,
    fitscale(CategoricalScale(["a", "b", "c"], markerpalette, "class"))
)

continuousscales = MixedArguments()
insert!(continuousscales, 1, ContinuousScale(extrema([x1; x2]), "x"))
insert!(continuousscales, 2, ContinuousScale(extrema([y1; y2]), "y"))
insert!(continuousscales, :color, ContinuousScale((1, N), "c"))

ae = AxisEntries(
    Axis(fig[1, 1]),
    [
        Entry(
            Scatter,
            Any[x1, y1],
            NamedArguments((color=c1, marker=m1, markersize=15, colorrange=(1, N)))
        ),
        Entry(
            Scatter,
            Any[x2, y2],
            NamedArguments((color=c2, marker=m2, markersize=15, colorrange=(1, N)))
        ),
    ],
    categoricalscales,
    continuousscales
)
plot!(ae)
fig

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