heatmap 

heatmap(x, y, values)
heatmap(values)

Plots a heatmap as an image on x, y (defaults to interpretation as dimensions).

Two vectors and a matrix 

using CairoMakie


xs = range(0, 10, length = 25)
ys = range(0, 15, length = 25)
zs = [cos(x) * sin(y) for x in xs, y in ys]

heatmap(xs, ys, zs)

Two ranges and a function 

using CairoMakie

function mandelbrot(x, y)
    z = c = x + y*im
    for i in 1:30.0; abs(z) > 2 && return i; z = z^2 + c; end; 0
end

heatmap(-2:0.1:1, -1.1:0.1:1.1, mandelbrot,
    colormap = Reverse(:deep))

Three vectors

There must be no duplicate combinations of x and y, but it is allowed to leave out values. 

using CairoMakie


xs = [1, 2, 3, 1, 2, 3, 1, 2, 3]
ys = [1, 1, 1, 2, 2, 2, 3, 3, 3]
zs = [1, 2, 3, 4, 5, 6, 7, 8, NaN]

heatmap(xs, ys, zs)

© Makie.jl. Last modified: October 16, 2021. Website built with Franklin.jl and the Julia programming language .

These docs were autogenerated using Makie: v0.15.3, GLMakie: v0.4.7, CairoMakie: v0.6.6, WGLMakie: v0.4.7