Plot Attributes in Makie.jl - plot

Question

I'd like to plot a function f(x,y,z) in xyz-space by HeatMap.
I have the following code by https://lazarusa.github.io/BeautifulMakie/surfWireLines/RGBcube/ .
using GLMakie, GeometryBasics, Colors
positions = vec([(i, j, k) for i=1:L,j=1:L,k=1:L]) #3D coordinate
F = zeros(Float64,length(positions)
for i = 1:length(positions) #convert f(x,y,z) to an array
x = positions[i][1]
y = positions[i][2]
z = positions[i][3]
　　　F[i] = f(x,y,z)
end
fig, ax = mesh(HyperRectangle(Vec3f0(positions[1]...),Vec3f0(0.8)), color = RGBA(0,0,F[1],0.5), transparency = false) #HyperRectangle(::position,::length),color=(::red,::green,::blue,::alpha)
wireframe!(ax,HyperRectangle(Vec3f0(positions[1]...), Vec3f0(0.8)), linewidth = 0.1, overdraw = false)
for i in 2:length(positions)
mesh!(ax, HyperRectangle(Vec3f0(positions[i]...), Vec3f0(0.8)), color = RGBA(0,0,F[i],0.5))
wireframe!(ax, HyperRectangle(Vec3f0(positions[i]...), Vec3f0(0.8)), linewidth = 0.1, overdraw = false)
end
fig
This code has mostly helped, but there's still a little problem.:
How to move the camera? (update_camera! needs Scene, but ax is LScene. I don't know what this is.)
How to adjust the axis (labels, ticks, etc.)?
How to add the colorbar?
How to save the figure?

Answer 1

again.
I did another example. This one is really fast. There, you have most of the options you want.
https://lazarusa.github.io/BeautifulMakie/surfWireLines/volumeScatters/
For custom ticks, you can always do
ax.xticks = ([1,2,3], ["1","2", "3"])
also, consider joining https://discourse.julialang.org, there more people could help, much much faster.
Complete code here as well.
# by Lazaro Alonso
using GLMakie
let
x = 1:10
y = 1:10
z = 1:10
f(x,y,z) = x^2 + y^2 + z^2
positions = vec([(i, j, k) for i in x,j in y, k in z])
vals = [f(ix,iy,iz) for ix in x, iy in y, iz in z]
fig, ax, pltobj = meshscatter(positions, color = vec(vals),
marker = FRect3D(Vec3f0(0), Vec3f0(10)), # here, if you use less than 10, you will see smaller squares.
colormap = :Spectral_11, colorrange = (minimum(vals), maximum(vals)),
transparency = true, # set to false, if you don't want the transparency.
shading= false,
figure = (; resolution = (800,800)),
axis=(; type=Axis3, perspectiveness = 0.5, azimuth = 7.19, elevation = 0.57,
xlabel = "x label", ylabel = "y label", zlabel = "z label",
aspect = (1,1,1)))
cbar = Colorbar(fig, pltobj, label = "f values", height = Relative(0.5))
xlims!(ax,-1,11)
ylims!(ax,-1,11)
zlims!(ax,-1,11)
fig[1,2] = cbar
fig
#save("fileName.png", fig) # here, you save your figure.
end