Clarification of rotations about imagetransformations.jl HOT 7 CLOSED

julia> imrotate(img, pi/2, axes(img))
4×4 Matrix{Float64}:
 NaN    NaN          4.99995  NaN
  14.0    9.99998    5.99999  NaN
 NaN     11.0        7.00002    3.00003
 NaN     12.0      NaN        NaN

julia> using Debugger

julia> @enter imrotate(img, π/2, axes(img))
In #imrotate#9(kwargs, , img, θ, inds) at /home/tim/.julia/packages/ImageTransformations/O9GYH/src/warp.jl:245
 245  function imrotate(img::AbstractArray{T}, θ::Real, inds::Union{Tuple, Nothing} = nothing; kwargs...) where T
 246      # TODO: expose rotation center as a keyword
>247      θ = floor(mod(θ,2pi)*typemax(Int16))/typemax(Int16) # periodic discretezation
 248      tform = recenter(RotMatrix{2}(θ), center(img))
 249      # Use the `nothing` trick here because moving the `autorange` as default value is not type-stable
 250      inds = isnothing(inds) ? autorange(img, inv(tform)) : inds
 251      warp(img, tform, inds; kwargs...)
 252  end

About to run: (*)(2, π)
1|debug> n
In #imrotate#9(kwargs, , img, θ, inds) at /home/tim/.julia/packages/ImageTransformations/O9GYH/src/warp.jl:245
 245  function imrotate(img::AbstractArray{T}, θ::Real, inds::Union{Tuple, Nothing} = nothing; kwargs...) where T
 246      # TODO: expose rotation center as a keyword
 247      θ = floor(mod(θ,2pi)*typemax(Int16))/typemax(Int16) # periodic discretezation
>248      tform = recenter(RotMatrix{2}(θ), center(img))
 249      # Use the `nothing` trick here because moving the `autorange` as default value is not type-stable
 250      inds = isnothing(inds) ? autorange(img, inv(tform)) : inds
 251      warp(img, tform, inds; kwargs...)
 252  end

About to run: (Core.apply_type)(RotMatrix, 2)
1|julia> θ
1.5707876827295755

1|julia> π/2
1.5707963267948966

julia> imrotate(img, pi/2, axes(img), fillvalue=0.0)
4×4 Matrix{Float64}:
 NaN    NaN          4.99995  NaN
  14.0    9.99998    5.99999  NaN
 NaN     11.0        7.00002    3.00003
 NaN     12.0      NaN        NaN

@test  any(isnan, imrotate(img, π/3))
@test !any(isnan, imrotate(img, π/3; fillvalue=0.0))
@test !any(isnan, imrotate(img, π/3, fillvalue=0.0))
@test  any(isnan, imrotate(img, π/3, axes(img)))
@test !any(isnan, imrotate(img, π/3, axes(img); fillvalue=0.0))
@test !any(isnan, imrotate(img, π/3, axes(img), fillvalue=0.0))

julia> using RegistryCompatTools

help?> RegistryCompatTools
search: RegistryCompatTools

  RegistryCompatTools makes it easier to discover packages that need [compat] updates.

    •  held_back_by("SomePkg") - which packages are holding back SomePkg?

    •  held_back_packages()["SomePkg"] - which packages does SomePkg hold back?

    •  find_julia_packages_github() - discover which packages I can push to

julia> held_back_by("ImageTransformations")
15-element Vector{String}:
 "ADI"
 "Asimov"
 "Augmentor"
 "BasicTextRender"
 "CameraCalibrations"
 "DataAugmentation"
 "EasyML"
 "HCIToolbox"
 "Images"                    # not good...
 "MIRT"
 "MakieGallery"
 "Photometry"
 "UNet"
 "WordCloud"
 "YOLO"