GLMakie, yscale=log10 and Float32

Specific Domains Visualization
1

A simple scatter plot with a log scale gives an error if the y values underflow Float32:

x = 10.0.^-(0:50)
using GLMakie
fig = Figure()
ax = Axis(fig[1,1], yscale=log10)
scatter!(x)

ERROR: Found invalid y-limits (0.0f0, 1.0f0) for scale log10 which is defined on the interval 0.0..Inf (open)
Stacktrace:
  [1] error(s::String)
    @ Base .\error.jl:35
    ...

On the other hand, the following seems fine:

scatter(x)

I (vaguely) understand that GLMakie internally keeps its values as Float32s but in this case is the conversion being done prematurely?

I’m using GLMakie 0.8.6, Julia 1.9.2 on Windows 10.

2

Yes conversion is currently done immediately, there is a PR in the works that might shift Float32 conversion to a later point but it hasn’t reached a mergeable state, yet.

2 Likes
3

That would be useful - thanks for the explanation!

4

any update on this?, how to work around?