535 lines
18 KiB
Julia
535 lines
18 KiB
Julia
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type CurrentPlot
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nullableplot::Nullable{AbstractPlot}
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end
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const CURRENT_PLOT = CurrentPlot(Nullable{AbstractPlot}())
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isplotnull() = isnull(CURRENT_PLOT.nullableplot)
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function current()
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if isplotnull()
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error("No current plot/subplot")
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end
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get(CURRENT_PLOT.nullableplot)
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end
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current(plot::AbstractPlot) = (CURRENT_PLOT.nullableplot = Nullable(plot))
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# ---------------------------------------------------------
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Base.string(plt::Plot) = "Plot{$(plt.backend) n=$(plt.n)}"
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Base.print(io::IO, plt::Plot) = print(io, string(plt))
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Base.show(io::IO, plt::Plot) = print(io, string(plt))
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getplot(plt::Plot) = plt
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getplotargs(plt::Plot, idx::Int = 1) = plt.plotargs
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convertSeriesIndex(plt::Plot, n::Int) = n
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# ---------------------------------------------------------
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"""
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The main plot command. Use `plot` to create a new plot object, and `plot!` to add to an existing one:
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```
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plot(args...; kw...) # creates a new plot window, and sets it to be the current
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plot!(args...; kw...) # adds to the `current`
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plot!(plotobj, args...; kw...) # adds to the plot `plotobj`
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```
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There are lots of ways to pass in data, and lots of keyword arguments... just try it and it will likely work as expected.
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When you pass in matrices, it splits by columns. See the documentation for more info.
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"""
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# this creates a new plot with args/kw and sets it to be the current plot
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function plot(args...; kw...)
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pkg = backend()
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d = KW(kw)
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preprocessArgs!(d)
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plotargs = merge(d, getPlotArgs(pkg, d, 1))
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# plt = _create_plot(pkg, plotargs) # create a new, blank plot
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plt = Plot(nothing, pkg, 0, plt.plotargs, KW[])
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plt.o = _create_backend_figure(plt)
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# now update the plot
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_plot!(plt, d, args...)
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end
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# this adds to the current plot, or creates a new plot if none are current
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function plot!(args...; kw...)
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local plt
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try
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plt = current()
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catch
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return plot(args...; kw...)
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end
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plot!(current(), args...; kw...)
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end
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# this adds to a specific plot... most plot commands will flow through here
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function plot!(plt::Plot, args...; kw...)
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d = KW(kw)
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preprocessArgs!(d)
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_plot!(plt, d, args...)
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end
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function strip_first_letter(s::Symbol)
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str = string(s)
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str[1:1], symbol(str[2:end])
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end
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# merge the KW d into the plot args
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function _add_plotargs!(plt::Plot, d::KW)
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# @show d
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# handle axis updates from a recipe
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for letter in ("x","y","z")
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# get the Axis object
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asym = symbol(letter * "axis")
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axis = plt.plotargs[asym]
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if axis == nothing
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# create a new one on first pass
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axis = Axis(letter)
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end
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# @show 1,typeof(axis)
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# update xlabel, xscale, etc
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for k in _axis_symbols
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lk = symbol(letter * string(k))
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if haskey(d, lk)
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axis[k] = d[lk]
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end
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end
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# @show 2,axis
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# update guidefont, etc
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for k in _axis_symbols_fonts_colors
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if haskey(d, k)
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axis[k] = d[k]
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end
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end
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# @show 3,axis
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# update extrema and discrete values
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datasym = symbol(letter)
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if haskey(d, datasym)
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v = d[datasym]
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if eltype(v) <: Number
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expand_extrema!(axis, v)
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else
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d[datasym] = discrete_value!(axis, v)
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end
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end
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# @show 4,axis
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end
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for k in keys(_plotDefaults)
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if haskey(d, k)
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plt.plotargs[k] = pop!(d, k)
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end
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end
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end
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# this method recursively applies series recipes when the seriestype is not supported
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# natively by the backend
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function _apply_series_recipe(plt::Plot, d::KW)
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st = d[:seriestype]
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# dumpdict(d, "apply_series_recipe", true)
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if st in supportedTypes()
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# println("adding series!!")
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warnOnUnsupported(plt.backend, d)
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_add_series(plt.backend, plt, d)
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else
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# get a sub list of series for this seriestype
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series_list = try
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RecipesBase.apply_recipe(d, Val{st}, d[:x], d[:y], d[:z])
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catch
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warn("Exception during apply_recipe(Val{$st}, ...) with types ($(typeof(d[:x])), $(typeof(d[:y])), $(typeof(d[:z])))")
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rethrow()
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end
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# assuming there was no error, recursively apply the series recipes
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for series in series_list
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_apply_series_recipe(plt, series.d)
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end
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end
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end
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# this is the core plotting function. recursively apply recipes to build
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# a list of series KW dicts.
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# note: at entry, we only have those preprocessed args which were passed in... no default values yet
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function _plot!(plt::Plot, d::KW, args...)
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# just in case the backend needs to set up the plot (make it current or something)
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_before_add_series(plt)
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# the grouping mechanism is a recipe on a GroupBy object
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# we simply add the GroupBy object to the front of the args list to allow
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# the recipe to be applied
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if haskey(d, :group)
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args = tuple(extractGroupArgs(d[:group], args...), args...)
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end
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# initialize the annotations list with what was passed in
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# TODO: there must be cleaner way to handle this!
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anns = annotations(get(d, :annotation, NTuple{3}[]))
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if typeof(anns) <: AVec{PlotText}
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anns = NTuple{3}[]
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else
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delete!(d, :annotation)
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end
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# for plotting recipes, swap out the args and update the parameter dictionary
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# we are keeping a queue of series that still need to be processed.
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# each pass through the loop, we pop one off and apply the recipe.
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# the recipe will return a list a Series objects... the ones that are
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# finished (no more args) get added to the kw_list, and the rest go into the queue
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# for processing.
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kw_list = KW[]
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still_to_process = isempty(args) ? [] : [RecipeData(copy(d), args)]
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while !isempty(still_to_process)
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# grab the first in line to be processed and pass it through apply_recipe
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# to generate a list of RecipeData objects (data + attributes)
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next_series = pop!(still_to_process)
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series_list = RecipesBase.apply_recipe(next_series.d, next_series.args...)
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for series in series_list
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# @show series
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if isempty(series.args)
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# when the arg tuple is empty, that means there's nothing left to recursively
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# process... finish up and add to the kw_list
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kw = series.d
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_add_markershape(kw)
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# if there was a grouping, filter the data here
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_filter_input_data!(kw)
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@show typeof((kw[:x], kw[:y], kw[:z]))
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# map marker_z if it's a Function
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if isa(get(kw, :marker_z, nothing), Function)
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# TODO: should this take y and/or z as arguments?
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kw[:marker_z] = map(kw[:marker_z], kw[:x])
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end
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# convert a ribbon into a fillrange
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if get(kw, :ribbon, nothing) != nothing
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rib = kw[:ribbon]
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kw[:fillrange] = (kw[:y] - rib, kw[:y] + rib)
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end
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# check that the backend will support the command and add it to the list
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warnOnUnsupportedArgs(plt.backend, kw)
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warnOnUnsupportedScales(plt.backend, kw)
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push!(kw_list, kw)
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# handle error bars by creating new series data... these will have
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# the same series index as the series they are copied from
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for esym in (:xerror, :yerror)
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if get(d, esym, nothing) != nothing
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# we make a copy of the KW and apply an errorbar recipe
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errkw = copy(kw)
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errkw[:seriestype] = esym
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push!(kw_list, errkw)
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end
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end
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else
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# args are non-empty, so there's still processing to do... add it back to the queue
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push!(still_to_process, series)
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end
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end
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end
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# !!! note: at this point, kw_list is fully decomposed into individual series... one KW per series !!!
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# now include any annotations which were added during recipes
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for kw in kw_list
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append!(anns, annotations(pop!(kw, :annotation, [])))
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end
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# @show anns
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for kw in kw_list
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@show typeof((kw[:x], kw[:y], kw[:z]))
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end
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# merge plot args... this is where we combine all the plot args from the user and
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# from the recipes... axis info, colors, etc
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# TODO: why do i need to check for the subplot key?
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if !haskey(d, :subplot)
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for kw in vcat(kw_list, d)
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_add_plotargs!(plt, kw)
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end
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handlePlotColors(plt.backend, plt.plotargs)
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end
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for kw in kw_list
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@show typeof((kw[:x], kw[:y], kw[:z]))
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end
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# this is it folks!
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# TODO: we probably shouldn't use i for tracking series index, but rather explicitly track it in recipes
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for (i,kw) in enumerate(kw_list)
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if !(get(kw, :seriestype, :none) in (:xerror, :yerror))
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plt.n += 1
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end
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# TODO: can this be handled as a recipe?? (yes... need to remove)
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# note: this could probably be handled using a recipe signature f{S<:Union{AbstractString,Symbol}}(v::AVec{S}, letter::AbstractString)
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# that gets called from within the SliceIt section
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# if !stringsSupported() && di[:seriestype] != :pie
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# setTicksFromStringVector(plt, d, di, "x")
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# setTicksFromStringVector(plt, d, di, "y")
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# setTicksFromStringVector(plt, d, di, "z")
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# end
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# TODO: unnecessary?? (yes... deleted as part of _add_plotargs... remove this)
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# # remove plot args
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# for k in keys(_plotDefaults)
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# delete!(di, k)
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# end
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# TODO: why?? (I think we can remove??)
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# # merge in plotarg_overrides
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# plotarg_overrides = pop!(di, :plotarg_overrides, nothing)
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# if plotarg_overrides != nothing
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# merge!(plt.plotargs, plotarg_overrides)
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# end
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# set default values, select from attribute cycles, and generally set the final attributes
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_add_defaults!(kw, plt, i)
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_replace_linewidth(kw)
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# now we have a fully specified series, with colors chosen. we must recursively handle
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# series recipes, which dispatch on seriestype. If a backend does not natively support a seriestype,
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# we check for a recipe that will convert that series type into one made up of lower-level components.
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# For example, a histogram is just a bar plot with binned data, a bar plot is really a filled step plot,
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# and a step plot is really just a path. So any backend that supports drawing a path will implicitly
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# be able to support step, bar, and histogram plots (and any recipes that use those components).
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_apply_series_recipe(plt, kw)
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end
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# now that we're done adding all the series, add the annotations
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_add_annotations(plt, anns)
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# add title, axis labels, ticks, etc
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# TODO: do we really need this subplot check?
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if !haskey(d, :subplot)
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# merge!(plt.plotargs, d) # this shouldn't be needed since we merged the keys earlier
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_update_plot(plt, plt.plotargs)
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end
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current(plt)
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# note: lets ignore the show param and effectively use the semicolon at the end of the REPL statement
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# # do we want to show it?
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if haskey(d, :show) && d[:show]
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gui()
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end
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plt
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end
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# # handle the grouping
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# function _add_series(plt::Plot, d::KW, groupby::GroupBy, args...)
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# starting_n = plt.n
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# for (i, glab) in enumerate(groupby.groupLabels)
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# tmpd = copy(d)
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# tmpd[:numUncounted] = plt.n - starting_n
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# _add_series(plt, tmpd, nothing, args...;
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# idxfilter = groupby.groupIds[i],
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# grouplabel = string(glab))
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# end
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# end
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function _replace_linewidth(d::KW)
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# get a good default linewidth... 0 for surface and heatmaps
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if get(d, :linewidth, :auto) == :auto
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d[:linewidth] = (get(d, :seriestype, :path) in (:surface,:heatmap,:image) ? 0 : 1)
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end
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end
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# # no grouping
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# function _add_series(plt::Plot, d::KW, args...;
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# idxfilter = nothing,
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# grouplabel = "")
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#
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# # get the list of dictionaries, one per series
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# dumpdict(d, "before process_inputs")
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# process_inputs(plt, d, args...)
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# dumpdict(d, "after process_inputs")
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#
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# if idxfilter != nothing
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# # add the group name as the label if there isn't one passed in
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# get!(d, :label, grouplabel)
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# # filter the data
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# filter_data!(d, idxfilter)
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# end
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# # dumpdict(d,"",true)
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#
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# seriesArgList, xmeta, ymeta = build_series_args(plt, d) #, idxfilter)
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# # seriesArgList, xmeta, ymeta = build_series_args(plt, groupargs..., args...; d...)
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#
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# # # if we were able to extract guide information from the series inputs, then update the plot
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# # # @show xmeta, ymeta
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# # updateDictWithMeta(d, plt.plotargs, xmeta, true)
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# # updateDictWithMeta(d, plt.plotargs, ymeta, false)
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#
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#
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# # function _add_series(plt::Plot, ds::)
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# # now we can plot the series
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# for (i,di) in enumerate(seriesArgList)
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# plt.n += 1
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#
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# if !stringsSupported() && di[:seriestype] != :pie
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# setTicksFromStringVector(plt, d, di, "x")
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# setTicksFromStringVector(plt, d, di, "y")
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# setTicksFromStringVector(plt, d, di, "z")
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# end
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#
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# # remove plot args
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# for k in keys(_plotDefaults)
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# delete!(di, k)
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# end
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#
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# # merge in plotarg_overrides
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# plotarg_overrides = pop!(di, :plotarg_overrides, nothing)
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# if plotarg_overrides != nothing
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# merge!(plt.plotargs, plotarg_overrides)
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# end
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# # dumpdict(plt.plotargs, "pargs", true)
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#
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# dumpdict(di, "Series $i")
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#
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# _replace_linewidth(di)
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#
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# _add_series(plt.backend, plt, di)
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# end
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# end
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# --------------------------------------------------------------------
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# function get_indices(orig, labels)
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# Int[findnext(labels, l, 1) for l in orig]
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# end
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# # TODO: remove?? this is the old way of handling discrete data... should be
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# # replaced by the Axis type and logic
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# function setTicksFromStringVector(plt::Plot, d::KW, di::KW, letter)
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# sym = symbol(letter)
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# ticksym = symbol(letter * "ticks")
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# pargs = plt.plotargs
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# v = di[sym]
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#
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# # do we really want to do this?
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# typeof(v) <: AbstractArray || return
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# isempty(v) && return
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# trueOrAllTrue(_ -> typeof(_) <: AbstractString, v) || return
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#
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# # compute the ticks and labels
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# ticks, labels = if ticksType(pargs[ticksym]) == :ticks_and_labels
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# # extend the existing ticks and labels. only add to labels if they're new!
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# ticks, labels = pargs[ticksym]
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# newlabels = filter(_ -> !(_ in labels), unique(v))
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# newticks = if isempty(ticks)
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# collect(1:length(newlabels))
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# else
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# maximum(ticks) + collect(1:length(newlabels))
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# end
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# ticks = vcat(ticks, newticks)
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# labels = vcat(labels, newlabels)
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# ticks, labels
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# else
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# # create new ticks and labels
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# newlabels = unique(v)
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# collect(1:length(newlabels)), newlabels
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# end
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#
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# d[ticksym] = ticks, labels
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# plt.plotargs[ticksym] = ticks, labels
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#
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# # add an origsym field so that later on we can re-compute the x vector if ticks change
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# origsym = symbol(letter * "orig")
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# di[origsym] = v
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# di[sym] = get_indices(v, labels)
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#
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# # loop through existing plt.seriesargs and adjust indices if there is an origsym key
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# for sargs in plt.seriesargs
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# if haskey(sargs, origsym)
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# # TODO: might need to call the setindex function instead to trigger a plot update for some backends??
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# sargs[sym] = get_indices(sargs[origsym], labels)
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# end
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# end
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# end
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# --------------------------------------------------------------------
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# TODO: remove
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# # should we update the x/y label given the meta info during input slicing?
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# function updateDictWithMeta(d::KW, plotargs::KW, meta::Symbol, isx::Bool)
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# lsym = isx ? :xlabel : :ylabel
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# if plotargs[lsym] == default(lsym)
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# d[lsym] = string(meta)
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# end
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# end
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# updateDictWithMeta(d::KW, plotargs::KW, meta, isx::Bool) = nothing
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# --------------------------------------------------------------------
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annotations(::@compat(Void)) = []
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annotations{X,Y,V}(v::AVec{@compat(Tuple{X,Y,V})}) = v
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annotations{X,Y,V}(t::@compat(Tuple{X,Y,V})) = [t]
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annotations(v::AVec{PlotText}) = v
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annotations(v::AVec) = map(PlotText, v)
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annotations(anns) = error("Expecting a tuple (or vector of tuples) for annotations: ",
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"(x, y, annotation)\n got: $(typeof(anns))")
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function annotations(plt::Plot, anns)
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anns = annotations(anns)
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# if we just have a list of PlotText objects, then create (x,y,text) tuples
|
|
if typeof(anns) <: AVec{PlotText}
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|
x, y = plt[plt.n]
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|
anns = Tuple{Float64,Float64,PlotText}[(x[i], y[i], t) for (i,t) in enumerate(anns)]
|
|
end
|
|
anns
|
|
end
|
|
|
|
|
|
function _add_annotations(plt::Plot, d::KW)
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|
anns = annotations(get(d, :annotation, nothing))
|
|
if !isempty(anns)
|
|
|
|
# if we just have a list of PlotText objects, then create (x,y,text) tuples
|
|
if typeof(anns) <: AVec{PlotText}
|
|
x, y = plt[plt.n]
|
|
anns = Tuple{Float64,Float64,PlotText}[(x[i], y[i], t) for (i,t) in enumerate(anns)]
|
|
end
|
|
|
|
_add_annotations(plt, anns)
|
|
end
|
|
end
|
|
|
|
|
|
# --------------------------------------------------------------------
|
|
|
|
function Base.copy(plt::Plot)
|
|
backend(plt.backend)
|
|
plt2 = plot(; plt.plotargs...)
|
|
for sargs in plt.seriesargs
|
|
sargs = filter((k,v) -> haskey(_seriesDefaults,k), sargs)
|
|
plot!(plt2; sargs...)
|
|
end
|
|
plt2
|
|
end
|
|
|
|
# --------------------------------------------------------------------
|