heatmaps don't work with PolarAxis in GLMakie

[ffreyer]

• what version of Makie are you running? 0.21.7 master
• can you reproduce the bug with a fresh environment ? yes
• What platform + GPU are you on? irrelevant

This doesn't show any plot for me in GLMakie, but does in CairoMakie and WGLMakie:

fig = Figure()
ax = PolarAxis(fig[1, 1])
heatmap!(ax, rand(10, 10))
fig

Possibly caused by #4125 not catching the transform func from PolarAxis as a reason to not use image

[SimonDanisch]

This is expected, since we don't use 2d transforms in heatmap for GLMakie, but rather transform x and y separately.

[ffreyer]

I opened this in relation to some other issue, should've posted which... Maybe #742, as curvelinear heatmaps could be done with transforms like Polar if that pipeline works.

[SimonDanisch]

I'd say its a duplicate of that issue, is it?

[ffreyer]

Hmm, maybe this wasn't a regression. But I still think it would be good to fix for feature parity between backends.