Comments (6)
Works fine on v0.5.1
though!
from colors.jl.
Maybe base_color_type(C)(...)
is relying on the implicit call
to convert(base_color_type(C), ...)
in 0.4+? Although the problem is probably in ColorTypes.jl, not Colors.jl, though.
from colors.jl.
No, I don't think it is that. It is almost looking like a bug in 0.3 (I tried 0.3.11). I added some println
statements to see what colormap
is doing. The error occurs in the mix_linearly
function in colormaps.jl
, which I changed to:
function mix_linearly{C<:Color}(a::C, b::C, s)
println("color $C($a,$b,$s)")
B = base_color_type(C)
(arg1,arg2,arg3) = ((1-s)*comp1(a)+s*comp1(b), (1-s)*comp2(a)+s*comp2(b), (1-s)*comp3(a)+s*comp3(b))
println("$B($arg1, $arg2, $arg3)")
dump(B)
r = B(arg1, arg2, arg3)
println("got $r")
return r
end
which gives
julia> using Colors
julia> colormap("RdBu")
color LCHuv{Float64}(LCHuv{Float64}(12.0,40.2976566476583,12.10439529418943),LCHuv{Float64}(53.2590994583839,178.4759397727335,12.000000000000023),0.6)
{36.75545967503034,123.20462652270342,12.041758117675787}
LCHuv{T<:FloatingPoint}(36.75545967503034, 123.20462652270342, 12.041758117675787)
LCHuv
ERROR: type cannot be constructed
in mix_linearly at /Users/stevenj/.julia/v0.3/Colors/src/colormaps.jl:138
in sequential_palette at /Users/stevenj/.julia/v0.3/Colors/src/colormaps.jl:160
in diverging_palette at /Users/stevenj/.julia/v0.3/Colors/src/colormaps.jl:233
in colormap at /Users/stevenj/.julia/v0.3/Colors/src/colormaps.jl:290
in colormap at /Users/stevenj/.julia/v0.3/Colors/src/colormaps.jl:264
However, if I type it manually at the REPL, it works fine:
julia> C = LCHuv{Float64}
LCHuv{Float64} (constructor with 1 method)
julia> B = base_color_type(C)
LCHuv{T<:FloatingPoint} (constructor with 4 methods)
julia> B(36.75545967503034, 123.20462652270342, 12.041758117675787)
LCHuv{Float64}(36.75545967503034,123.20462652270342,12.041758117675787)
from colors.jl.
If I type the same mix_linearly
function at the REPL, then mix_linearly(LCHuv{Float64}(12.0,40.2976566476583,12.10439529418943),LCHuv{Float64}(53.2590994583839,178.4759397727335,12.000000000000023),0.6)
works fine.
Weird.
from colors.jl.
I'm seeing this on PkgEval now
from colors.jl.
Since we only support 0.4 and higher, this is no longer relevant.
from colors.jl.
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from colors.jl.