Hex conversion with symbol not supported for gradient colors

[danvinci]

Hi!

I'm trying to get hex codes for gradient palettes in cgradients() from PlotUtils:

c_map2 = map(x -> hex(x), cgrad(:lime_grad).colors)

The above line works, but if I specify the parameter for hex it doesn't:

c_map1 = map(x -> hex(x,:rrggbbaa), cgrad(:lime_grad).colors)

MethodError: no method matching hex(::ColorTypes.RGBA{Float64}, ::Symbol)

[kimikage]

What version of Colors.jl are you using?

Edit:
The styling option of hex was introduced in Colors v0.12.0.
Also, I think the specifications of the return object of PlotUtils.cgrad have changed in v1.0.

julia> PlotUtils.cgrad(:viridis).colors |> typeof # PlotUtils v1.0.10 (which is compatible with Colors v0.12)
ColorSchemes.ColorScheme{Array{RGBA{Float64},1},String,String}

julia> PlotUtils.cgrad(:viridis).colors |> typeof # PlotUtils v0.6.5 (which is also compatible with Colors v0.12)
Array{RGBA{Float64},1}

Since PlotUtils v0.6.5 is also compatible with Colors v0.12, you need to analyze what is restricting the version of Colors.

[danvinci]

I'm using the most recent version for all packages (run pkg> update):

• Colors v0.11.2
• PlotUtils v0.6.5upda

[kimikage]

What does pkg> add Colors@0.12 say?

[danvinci]

Seems a dependency issue with other packages:

(@v1.5) pkg> add Colors@0.12
   Updating registry at `~/.julia/registries/General`
######################################################################## 100.0%
  Resolving package versions...
ERROR: Unsatisfiable requirements detected for package Plots [91a5bcdd]:
 Plots [91a5bcdd] log:
 ├─possible versions are: [0.12.1-0.12.4, 0.13.0-0.13.1, 0.14.0-0.14.2, 0.15.0-0.15.1, 0.16.0, 0.17.0-0.17.4, 0.18.0, 0.19.0-0.19.3, 0.20.0-0.20.6, 0.21.0, 0.22.0-0.22.5, 0.23.0-0.23.2, 0.24.0, 0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.0-0.27.1, 0.28.0-0.28.4, 0.29.0-0.29.9, 1.0.0-1.0.14, 1.1.0-1.1.4, 1.2.0-1.2.6, 1.3.0-1.3.7, 1.4.0-1.4.4, 1.5.0-1.5.9, 1.6.0-1.6.12, 1.7.0-1.7.3, 1.8.0-1.8.1, 1.9.0-1.9.1, 1.10.0-1.10.4] or uninstalled
 ├─restricted to versions * by an explicit requirement, leaving only versions [0.12.1-0.12.4, 0.13.0-0.13.1, 0.14.0-0.14.2, 0.15.0-0.15.1, 0.16.0, 0.17.0-0.17.4, 0.18.0, 0.19.0-0.19.3, 0.20.0-0.20.6, 0.21.0, 0.22.0-0.22.5, 0.23.0-0.23.2, 0.24.0, 0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.0-0.27.1, 0.28.0-0.28.4, 0.29.0-0.29.9, 1.0.0-1.0.14, 1.1.0-1.1.4, 1.2.0-1.2.6, 1.3.0-1.3.7, 1.4.0-1.4.4, 1.5.0-1.5.9, 1.6.0-1.6.12, 1.7.0-1.7.3, 1.8.0-1.8.1, 1.9.0-1.9.1, 1.10.0-1.10.4]
 ├─restricted by compatibility requirements with StatsPlots [f3b207a7] to versions: [0.14.0-0.14.2, 0.15.0-0.15.1, 0.16.0, 0.17.0-0.17.4, 0.18.0, 0.19.0-0.19.3, 0.20.0-0.20.6, 0.21.0, 0.22.0-0.22.5, 0.23.0-0.23.2, 0.24.0, 0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.0-0.27.1, 0.28.0-0.28.4, 0.29.0-0.29.9, 1.0.0-1.0.14, 1.1.0-1.1.4, 1.2.0-1.2.6, 1.3.0-1.3.7, 1.4.0-1.4.4, 1.5.0-1.5.9, 1.6.0-1.6.12, 1.7.0-1.7.3, 1.8.0-1.8.1, 1.9.0-1.9.1, 1.10.0-1.10.4]
 │ └─StatsPlots [f3b207a7] log:
 │   ├─possible versions are: [0.10.0-0.10.2, 0.11.0, 0.12.0, 0.13.0, 0.14.0-0.14.19] or uninstalled
 │   ├─restricted to versions * by an explicit requirement, leaving only versions [0.10.0-0.10.2, 0.11.0, 0.12.0, 0.13.0, 0.14.0-0.14.19]
 │   └─restricted by compatibility requirements with Observables [510215fc] to versions: 0.14.1-0.14.19 or uninstalled, leaving only versions: 0.14.1-0.14.19
 │     └─Observables [510215fc] log:
 │       ├─possible versions are: [0.2.0-0.2.3, 0.3.0-0.3.3] or uninstalled
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 │       │ └─GLMakie [e9467ef8] log:
 │       │   ├─possible versions are: [0.0.1-0.0.18, 0.1.0-0.1.26] or uninstalled
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 │       │   │ └─AbstractPlotting [537997a7] log:
 │       │   │   ├─possible versions are: [0.9.0-0.9.27, 0.10.0-0.10.11, 0.11.0-0.11.2, 0.12.0-0.12.18, 0.13.0-0.13.11, 0.14.0-0.14.4, 0.15.0-0.15.17] or uninstalled
 │       │   │   ├─restricted to versions * by an explicit requirement, leaving only versions [0.9.0-0.9.27, 0.10.0-0.10.11, 0.11.0-0.11.2, 0.12.0-0.12.18, 0.13.0-0.13.11, 0.14.0-0.14.4, 0.15.0-0.15.17]
 │       │   │   ├─restricted by compatibility requirements with Makie [ee78f7c6] to versions: [0.9.0-0.9.27, 0.10.0-0.10.11, 0.11.0-0.11.2, 0.12.0-0.12.18, 0.14.0-0.14.4, 0.15.0-0.15.17]
 │       │   │   │ └─Makie [ee78f7c6] log:
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 │       │   │   │   │   │ └─Images [916415d5] log:
 │       │   │   │   │   │   ├─possible versions are: [0.17.3, 0.18.0, 0.19.0-0.19.3, 0.20.0-0.20.2, 0.21.0-0.21.1, 0.22.0-0.22.5, 0.23.0-0.23.3] or uninstalled
 │       │   │   │   │   │   ├─restricted to versions * by an explicit requirement, leaving only versions [0.17.3, 0.18.0, 0.19.0-0.19.3, 0.20.0-0.20.2, 0.21.0-0.21.1, 0.22.0-0.22.5, 0.23.0-0.23.3]
 │       │   │   │   │   │   └─restricted by compatibility requirements with Colors [5ae59095] to versions: [0.19.3, 0.20.0-0.20.2, 0.21.0-0.21.1, 0.22.0-0.22.5, 0.23.0-0.23.3] or uninstalled, leaving only versions: [0.19.3, 0.20.0-0.20.2, 0.21.0-0.21.1, 0.22.0-0.22.5, 0.23.0-0.23.3]
 │       │   │   │   │   │     └─Colors [5ae59095] log: see above
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 │       │   │   │   │     └─Colors [5ae59095] log: see above
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 │       │   │   │   │ └─ImageMagick [6218d12a] log:
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 │       │   │   │   │   │ └─GeoMakie [db073c08] log:
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 │       │   │   │   │   │   └─restricted by compatibility requirements with AbstractPlotting [537997a7] to versions: 0.1.0-0.1.14 or uninstalled, leaving only versions: 0.1.0-0.1.14
 │       │   │   │   │   │     └─AbstractPlotting [537997a7] log: see above
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 │       │   │   │   │     └─ColorTypes [3da002f7] log:
 │       │   │   │   │       ├─possible versions are: [0.7.0-0.7.5, 0.8.0-0.8.1, 0.9.0-0.9.1, 0.10.0-0.10.9] or uninstalled
 │       │   │   │   │       ├─restricted by compatibility requirements with GLMakie [e9467ef8] to versions: [0.7.0-0.7.5, 0.8.0-0.8.1, 0.9.0-0.9.1, 0.10.0-0.10.9]
 │       │   │   │   │       │ └─GLMakie [e9467ef8] log: see above
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 │       │   │   │   └─restricted by compatibility requirements with AbstractPlotting [537997a7] to versions: [0.9.0-0.9.6, 0.10.0] or uninstalled, leaving only versions: [0.9.4-0.9.6, 0.10.0]
 │       │   │   │     └─AbstractPlotting [537997a7] log: see above
 │       │   │   ├─restricted by compatibility requirements with GLMakie [e9467ef8] to versions: [0.9.0-0.9.27, 0.10.0-0.10.11, 0.11.1-0.11.2, 0.12.0-0.12.18, 0.13.1-0.13.11, 0.14.0-0.14.4, 0.15.0-0.15.17], leaving only versions: [0.9.0-0.9.27, 0.10.0-0.10.11, 0.11.1-0.11.2, 0.12.0-0.12.18, 0.14.0-0.14.4, 0.15.0-0.15.17]
 │       │   │   │ └─GLMakie [e9467ef8] log: see above
 │       │   │   ├─restricted by compatibility requirements with Colors [5ae59095] to versions: [0.9.27, 0.10.0-0.10.11, 0.11.0-0.11.2, 0.12.0-0.12.18, 0.13.0-0.13.11, 0.14.0-0.14.4, 0.15.0-0.15.17] or uninstalled, leaving only versions: [0.9.27, 0.10.0-0.10.11, 0.11.1-0.11.2, 0.12.0-0.12.18, 0.14.0-0.14.4, 0.15.0-0.15.17]
 │       │   │   │ └─Colors [5ae59095] log: see above
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 │       │   │   │ └─GeoMakie [db073c08] log: see above
 │       │   │   ├─restricted by compatibility requirements with WGLMakie [276b4fcb] to versions: [0.9.27, 0.10.1-0.10.11, 0.11.0-0.11.2, 0.12.0-0.12.18], leaving only versions: [0.9.27, 0.10.1-0.10.11, 0.11.1-0.11.2]
 │       │   │   │ └─WGLMakie [276b4fcb] log:
 │       │   │   │   ├─possible versions are: [0.1.0-0.1.14, 0.2.0-0.2.12, 0.3.0-0.3.2] or uninstalled
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 │       │   │   │   ├─restricted by compatibility requirements with Colors [5ae59095] to versions: [0.1.10-0.1.14, 0.2.0-0.2.12, 0.3.0-0.3.2] or uninstalled, leaving only versions: [0.1.10-0.1.14, 0.2.0-0.2.12, 0.3.0-0.3.2]
 │       │   │   │   │ └─Colors [5ae59095] log: see above
 │       │   │   │   ├─restricted by compatibility requirements with AbstractPlotting [537997a7] to versions: [0.1.0-0.1.14, 0.2.0-0.2.6] or uninstalled, leaving only versions: [0.1.10-0.1.14, 0.2.0-0.2.6]
 │       │   │   │   │ └─AbstractPlotting [537997a7] log: see above
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 │       │   │   │   │ └─ShaderAbstractions [65257c39] log:
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 │   ├─restricted by compatibility requirements with JuliaDB [a93385a2] to versions: [0.4.0, 0.5.0, 0.6.0, 0.7.0], leaving only versions: [0.5.0, 0.6.0, 0.7.0]
 │   │ └─JuliaDB [a93385a2] log:
 │   │   ├─possible versions are: [0.9.0, 0.10.0, 0.11.0-0.11.2, 0.12.0, 0.13.0-0.13.1] or uninstalled
 │   │   └─restricted to versions * by an explicit requirement, leaving only versions [0.9.0, 0.10.0, 0.11.0-0.11.2, 0.12.0, 0.13.0-0.13.1]
 │   └─restricted by compatibility requirements with GeoInterface [cf35fbd7] to versions: [0.6.0, 0.7.0, 0.8.0, 1.0.0-1.0.2, 1.1.0-1.1.1], leaving only versions: [0.6.0, 0.7.0]
 │     └─GeoInterface [cf35fbd7] log:
 │       ├─possible versions are: [0.4.0-0.4.1, 0.5.0-0.5.4] or uninstalled
 │       └─restricted by compatibility requirements with GeoMakie [db073c08] to versions: 0.5.0-0.5.4
 │         └─GeoMakie [db073c08] log: see above
 ├─restricted by compatibility requirements with StaticArrays [90137ffa] to versions: [0.21.0, 0.22.0-0.22.5, 0.23.0-0.23.2, 0.24.0, 0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.0-0.27.1, 0.28.0-0.28.4, 0.29.0-0.29.9, 1.0.0-1.0.14, 1.1.0-1.1.4, 1.2.0-1.2.6, 1.3.0-1.3.7, 1.4.0-1.4.4, 1.5.0-1.5.9, 1.6.0-1.6.12, 1.7.0-1.7.3, 1.8.0-1.8.1, 1.9.0-1.9.1, 1.10.0-1.10.4] or uninstalled, leaving only versions: [0.21.0, 0.22.0-0.22.5, 0.23.0-0.23.2, 0.24.0, 0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.0-0.27.1, 0.28.0-0.28.4]
 │ └─StaticArrays [90137ffa] log:
 │   ├─possible versions are: [0.8.0-0.8.3, 0.9.0-0.9.2, 0.10.0, 0.10.2-0.10.3, 0.11.0-0.11.1, 0.12.0-0.12.5, 1.0.0-1.0.1] or uninstalled
 │   ├─restricted by compatibility requirements with Images [916415d5] to versions: [0.8.0-0.8.3, 0.9.0-0.9.2, 0.10.0, 0.10.2-0.10.3, 0.11.0-0.11.1, 0.12.0-0.12.5, 1.0.0-1.0.1]
 │   │ └─Images [916415d5] log: see above
 │   └─restricted by compatibility requirements with AbstractPlotting [537997a7] to versions: 0.12.0-0.12.5
 │     └─AbstractPlotting [537997a7] log: see above
 ├─restricted by compatibility requirements with FixedPointNumbers [53c48c17] to versions: [0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.0-0.27.1, 0.28.0-0.28.4, 0.29.0-0.29.9, 1.0.0-1.0.14, 1.1.0-1.1.4, 1.2.0-1.2.6, 1.3.0-1.3.7, 1.4.0-1.4.4, 1.5.0-1.5.9, 1.6.0-1.6.12, 1.7.0-1.7.3, 1.8.0-1.8.1, 1.9.0-1.9.1, 1.10.0-1.10.4] or uninstalled, leaving only versions: [0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.0-0.27.1, 0.28.0-0.28.4]
 │ └─FixedPointNumbers [53c48c17] log:
 │   ├─possible versions are: [0.5.0-0.5.3, 0.6.0-0.6.1, 0.7.0-0.7.1, 0.8.0-0.8.4] or uninstalled
 │   ├─restricted by compatibility requirements with GLMakie [e9467ef8] to versions: [0.5.0-0.5.3, 0.6.0-0.6.1, 0.7.0-0.7.1, 0.8.0-0.8.4]
 │   │ └─GLMakie [e9467ef8] log: see above
 │   ├─restricted by compatibility requirements with Colors [5ae59095] to versions: [0.6.0-0.6.1, 0.7.0-0.7.1, 0.8.0-0.8.4]
 │   │ └─Colors [5ae59095] log: see above
 │   ├─restricted by compatibility requirements with ImageCore [a09fc81d] to versions: [0.6.1, 0.7.0-0.7.1, 0.8.0-0.8.4]
 │   │ └─ImageCore [a09fc81d] log:
 │   │   ├─possible versions are: [0.7.0-0.7.4, 0.8.0-0.8.20] or uninstalled
 │   │   ├─restricted by compatibility requirements with Images [916415d5] to versions: [0.7.0-0.7.4, 0.8.0-0.8.20]
 │   │   │ └─Images [916415d5] log: see above
 │   │   └─restricted by compatibility requirements with Colors [5ae59095] to versions: 0.8.12-0.8.20 or uninstalled, leaving only versions: 0.8.12-0.8.20
 │   │     └─Colors [5ae59095] log: see above
 │   └─restricted by compatibility requirements with Plots [91a5bcdd] to versions: [0.5.0-0.5.3, 0.6.0-0.6.1], leaving only versions: 0.6.1
 │     └─Plots [91a5bcdd] log: see above
 ├─restricted by compatibility requirements with PlotUtils [995b91a9] to versions: [0.12.1-0.12.4, 0.13.0-0.13.1, 0.14.0-0.14.2, 0.15.0-0.15.1, 0.16.0, 0.17.0-0.17.4, 0.18.0, 0.19.0-0.19.3, 0.20.0-0.20.6, 0.21.0, 0.22.0-0.22.5, 0.23.0-0.23.2, 0.24.0, 0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.1, 0.28.0-0.28.4, 0.29.0-0.29.9, 1.0.0-1.0.14] or uninstalled, leaving only versions: [0.25.0-0.25.3, 0.26.0-0.26.3, 0.27.1, 0.28.0-0.28.4]
 │ └─PlotUtils [995b91a9] log: see above
 └─restricted by compatibility requirements with GeometryTypes [4d00f742] to versions: [0.12.1-0.12.4, 0.13.0-0.13.1, 0.14.0-0.14.2, 0.15.0-0.15.1, 0.16.0, 0.17.0-0.17.4, 0.18.0, 0.19.0-0.19.3, 0.20.0-0.20.6, 0.21.0, 0.22.0-0.22.5, 0.23.0-0.23.2, 0.24.0, 0.29.5-0.29.9, 1.0.0-1.0.14, 1.1.0-1.1.4, 1.2.0-1.2.6, 1.3.0-1.3.7, 1.4.0-1.4.4, 1.5.0-1.5.9, 1.6.0-1.6.12, 1.7.0-1.7.3, 1.8.0-1.8.1, 1.9.0-1.9.1, 1.10.0-1.10.4] or uninstalled — no versions left
   └─GeometryTypes [4d00f742] log:
     ├─possible versions are: [0.6.0-0.6.2, 0.7.0-0.7.10, 0.8.0-0.8.4] or uninstalled
     ├─restricted by compatibility requirements with FixedPointNumbers [53c48c17] to versions: [0.7.4-0.7.10, 0.8.0-0.8.4] or uninstalled
     │ └─FixedPointNumbers [53c48c17] log: see above
     └─restricted by compatibility requirements with ColorTypes [3da002f7] to versions: 0.8.2-0.8.4 or uninstalled
       └─ColorTypes [3da002f7] log: see above

[kimikage]

Dependency problems don't always have a single cause, but I am concerned about the restrictions imposed by RecipesBase.jl.

https://github.com/JuliaData/JuliaDB.jl/pulls/app%2Fgithub-actions
Why is JuliaDB.jl in that state? 🤔

cf:
JuliaData/JuliaDB.jl#374
JuliaData/JuliaDB.jl#350 (comment)

[kimikage]

I'm not a user or a developer with commit privileges of JuliaDB, so I'm not going to take any specific action on this issue. Perhaps Discourse, Slack, etc. would be a good way to get the attention of the maintainers of JuliaDB. If that doesn't solve the problem, I think the only solution is to manually edit the compatibility caps of JuliaDB (or something).

I don't think it's a good idea to backport the feature to Colors v0.11. Although it's not going as well as we'd like, we should move forward to the release of Colors v1.0.

[danvinci]

Ok no prob - it's not anything urgent either, is me playing with a side project ;)

I'd keep the issue open (in case someone else runs into this as well) and eventually close it when JuliaDB's compatibility caps are updated.

[timholy]

This should be filed with packages that are capping Colors.