Plot limits do not set automatically when `-Inf` values are present

[nchisholm]

Using GeoMakie 0.6.5, I found that GeoAxis limits fail to set automatically if there are one or more -Inf values present in the data being plotted. +Inf, NaN, or missing values do not trigger the issue. I tried heatmap using CairoMakie and surface using GLMakie with similar results.

using GLMakie, GeoMakie

fig = Figure()
ga = GeoAxis(fig[1, 1])

lons = -180:180
lats = -90:90
z = [exp(cosd(l)) + 3(y/90) for l in lons, y in lats]

# One or more values to `-Inf`
@. z[-3 < lons < 3, -3 < lats < 3] = -Inf

hm = surface!(ga, lons, lats, z; shading=NoShading, interpolate=false)

Result:

If I change -Inf to Inf or NaN, I get what I expect.

[asinghvi17]

This shouldn't be an issue on master and Makie v0.21 - am away from my laptop but will confirm later.

[asinghvi17]

This displays correctly on master, with both CairoMakie and GLMakie in png mode:

CairoMakie in PDF is also fine, but SVG has some weird artefacts depending on which renderer you use. That can't be helped there, though.

If you want to use GeoMakie master,

using Pkg
Pkg.add(name = "GeoMakie", rev = "master") 

ought to do it. Just remember to Pkg.free("GeoMakie") later.