Multiple Spheres in same figure

[ZenanH]

I want to draw a number of spheres at different locations in the same figure, each as a trace. Here is my code:

using PlotlyJS

function sphere(sphere_number::Int64)

    trace = []

    for i = 1:sphere_number
        d = rand(1:50)
        n = 100
        θ = range(0.0, 2*π, length = n)
        ϕ = range(0.0, π, length = n)

        a = d .+ cos.(θ)*sin.(ϕ)'
        b = d .+ sin.(θ)*sin.(ϕ)'
        c = d .+ ones(n)*cos.(ϕ)'

        push!(trace,surface(x = a, y = b, z = c, colorscale="Greys"))
    end

    layout = Layout(title="Sphere", autosize=false, width=400,
                    height=400, margin=attr(l=65, r=50, b=65, t=90))
    plot(trace, layout)
end

Error:

ERROR: MethodError: no method matching Plot(::Array{Any,1}, ::Layout{Dict{Symbol,Any}})
Closest candidates are:
  Plot(::Array{TT,1}, ::PlotlyBase.AbstractLayout, ::Base.UUID, ::Style) where TT<:AbstractTrace at C:\Users\zenan\.julia\packages\PlotlyBase\80KwD\src\PlotlyBase.jl:33
  Plot(::AbstractArray{T,1}, ::Any; style) where T<:AbstractTrace at C:\Users\zenan\.julia\packages\PlotlyBase\80KwD\src\PlotlyBase.jl:58
  Plot(::AbstractArray{T,N} where N, ::Layout; kwargs...) where T<:Union{Dates.Date, Dates.DateTime, AbstractString, Number, Symbol} at C:\Users\zenan\.julia\packages\PlotlyBase\80KwD\src\convenience_api.jl:61
  ...
Stacktrace:
 [1] plot(::Array{Any,1}, ::Vararg{Any,N} where N; options::Dict{Any,Any}, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at 
C:\Users\zenan\.julia\packages\PlotlyJS\AhkM5\src\display.jl:145
 [2] plot(::Array{Any,1}, ::Vararg{Any,N} where N) at C:\Users\zenan\.julia\packages\PlotlyJS\AhkM5\src\display.jl:145
 [3] sphere(::Int64) at e:\GitHub\TEMP.jl:19
 [4] top-level scope at REPL[38]:1
 [5] eval(::Module, ::Any) at .\boot.jl:331
 [6] eval_user_input(::Any, ::REPL.REPLBackend) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.4\REPL\src\REPL.jl:86
 [7] run_backend(::REPL.REPLBackend) at C:\Users\zenan\.julia\packages\Revise\MgvIv\src\Revise.jl:1023
 [8] top-level scope at none:0
 [9] eval(::Module, ::Any) at .\boot.jl:331
 [10] eval_user_input(::Any, ::REPL.REPLBackend) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.4\REPL\src\REPL.jl:86
 [11] run_backend(::REPL.REPLBackend) at C:\Users\zenan\.julia\packages\Revise\MgvIv\src\Revise.jl:1023
 [12] top-level scope at none:0

I did this because I noticed the way plot([trace1,trace2], layout) was used in the doc.
How can I solve this problem?😅

[sglyon]

This is close!

I think the problem here is that the trace = [] gives you an Array{Any,1} and the plot method needs an Array{<:AbstractTrace,1}

Can you try again and start with trace = AbstractTrace[]?

[ZenanH]

Thank you very much, it worked！👍