543 lines
20 KiB
Julia
543 lines
20 KiB
Julia
using Contour: Contour
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using StatsBase: Histogram, fit
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# PGFPlotsX.print_tex(io::IO, data::ColorGradient) = write(io, pgfx_colormap(data))
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Base.@kwdef mutable struct PGFPlotsXPlot
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is_created::Bool = false
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was_shown::Bool = false
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the_plot::PGFPlotsX.TikzDocument = PGFPlotsX.TikzDocument()
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end
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pgfx_axes(pgfx_plot::PGFPlotsXPlot) = pgfx_plot.the_plot.elements[1].elements[1].contents
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function Base.show(io::IO, mime::MIME, pgfx_plot::PGFPlotsXPlot)
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show(io::IO, mime, pgfx_plot.the_plot)
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end
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function Base.push!(pgfx_plot::PGFPlotsXPlot, item)
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push!(pgfx_plot.the_plot, item)
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end
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function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
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if !pgfx_plot.is_created
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cols, rows = size(plt.layout.grid)
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the_plot = PGFPlotsX.TikzPicture()
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# the combination of groupplot and polaraxis is broken in pgfplots
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if !any( sp -> ispolar(sp), plt.subplots )
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push!( the_plot, PGFPlotsX.GroupPlot(
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PGFPlotsX.Options(
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"group style" => PGFPlotsX.Options(
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"group size" => string(cols)*" by "*string(rows),
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"horizontal sep" => string(maximum(sp -> sp.minpad[1], plt.subplots)),
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"vertical sep" => string(maximum(sp -> sp.minpad[2], plt.subplots)),
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)
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)
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)
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)
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end
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for sp in plt.subplots
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bb = bbox(sp)
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cstr = plot_color(sp[:background_color_legend])
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a = alpha(cstr)
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title_cstr = plot_color(sp[:titlefontcolor])
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title_a = alpha(cstr)
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axis_opt = PGFPlotsX.Options(
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"height" => string(height(bb)),
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"width" => string(width(bb)),
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"title" => sp[:title],
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"title style" => PGFPlotsX.Options(
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"font" => pgfx_font(sp[:titlefontsize], pgfx_thickness_scaling(sp)),
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"color" => title_cstr,
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"draw opacity" => title_a,
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"rotate" => sp[:titlefontrotation]
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),
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"legend pos" => get(_pgfplotsx_legend_pos, sp[:legend], "outer north east"),
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"legend style" => PGFPlotsX.Options(
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pgfx_linestyle(pgfx_thickness_scaling(sp), sp[:foreground_color_legend], 1.0, "solid") => nothing,
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"fill" => cstr,
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"font" => pgfx_font(sp[:legendfontsize], pgfx_thickness_scaling(sp))
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),
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"axis background/.style" => PGFPlotsX.Options(
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"fill" => sp[:background_color_inside]
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)
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)
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for letter in (:x, :y, :z)
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if letter != :z || is3d(sp)
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pgfx_axis!(axis_opt, sp, letter)
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end
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end
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if hascolorbar(sp)
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PGFPlotsX.push_preamble!(pgfx_plot.the_plot, """\\pgfplotsset{
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colormap={plots$(sp.attr[:subplot_index])}{$(pgfx_colormap(series.plotattributes[col]))},
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}""")
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pushed_colormap = true
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push!(axis_opt,
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"colorbar" => nothing,
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"colormap name" => "plots$(sp.attr[:subplot_index])",
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)
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end
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push!(axis_opt, "colorbar style" => PGFPlotsX.Options(
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"title" => sp[:colorbar_title],
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"point meta max" => get_clims(sp)[2],
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"point meta min" => get_clims(sp)[1]
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)
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)
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axisf = if sp[:projection] == :polar
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# TODO: this errors for some reason
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# push!(axis_opt, "xmin" => 90)
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# push!(axis_opt, "xmax" => 450)
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PGFPlotsX.PolarAxis
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else
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PGFPlotsX.Axis
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end
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axis = axisf(
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axis_opt
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)
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for series in series_list(sp)
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opt = series.plotattributes
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st = series[:seriestype]
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series_opt = PGFPlotsX.Options(
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"color" => opt[:linecolor],
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)
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# function args
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args = if st == :contour
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opt[:x], opt[:y], opt[:z].surf'
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elseif is3d(st)
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opt[:x], opt[:y], opt[:z]
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elseif st == :straightline
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straightline_data(series)
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elseif st == :shape
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shape_data(series)
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elseif ispolar(sp)
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theta, r = opt[:x], opt[:y]
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rad2deg.(theta), r
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else
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opt[:x], opt[:y]
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end
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if is3d(series)
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series_func = PGFPlotsX.Plot3
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else
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series_func = PGFPlotsX.Plot
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end
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if series[:fillrange] !== nothing && st != :contour
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series_opt = merge(series_opt, pgfx_fillstyle(opt))
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push!(series_opt, "area legend" => nothing)
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end
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# include additional style
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if haskey(_pgfx_series_extrastyle, st)
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push!(series_opt, _pgfx_series_extrastyle[st] => nothing)
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end
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if st == :contour
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if !isfilledcontour(series)
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surface_opt = PGFPlotsX.Options(
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"contour prepared" => PGFPlotsX.Options(
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"labels" => opt[:contour_labels],
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)
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)
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else
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notimpl()
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surface_opt = PGFPlotsX.Options(
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"contour filled" => PGFPlotsX.Options(
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# "levels" => opt[:levels],
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# "labels" => opt[:contour_labels],
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)
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)
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end
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surface_plot = series_func(
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# merge(series_opt, surface_opt),
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surface_opt,
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PGFPlotsX.Table(Contour.contours(args..., opt[:levels]))
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)
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push!(axis, surface_plot)
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elseif st == :histogram2d
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hist_
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else
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# treat segments
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segments = iter_segments(series)
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segment_opt = PGFPlotsX.Options()
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for (i, rng) in enumerate(segments)
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seg_args = (arg[rng] for arg in args)
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segment_opt = merge( segment_opt, pgfx_linestyle(opt, i) )
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segment_opt = merge( segment_opt, pgfx_marker(opt, i) )
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if st == :shape || series[:fillrange] !== nothing
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segment_opt = merge( segment_opt, pgfx_fillstyle(opt, i) )
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end
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segment_plot = series_func(
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merge(series_opt, segment_opt),
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PGFPlotsX.Coordinates(seg_args...),
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series[:fillrange] !== nothing ? "\\closedcycle" : "{}"
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)
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push!(axis, segment_plot)
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# add to legend?
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if i == 1 && opt[:label] != "" && sp[:legend] != :none && should_add_to_legend(series)
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push!( axis, PGFPlotsX.LegendEntry( opt[:label] )
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)
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end
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end
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# add series annotations
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anns = series[:series_annotations]
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for (xi,yi,str,fnt) in EachAnn(anns, series[:x], series[:y])
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pgfx_add_annotation!(axis, xi, yi, PlotText(str, fnt), pgfx_thickness_scaling(series))
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end
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end
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end
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if ispolar(sp)
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axes = the_plot
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else
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axes = the_plot.elements[1]
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end
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push!( axes, axis )
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if length(plt.o.the_plot.elements) > 0
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plt.o.the_plot.elements[1] = the_plot
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else
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push!(plt.o, the_plot)
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end
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end
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pgfx_plot.is_created = true
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end
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end
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##
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const _pgfplotsx_linestyles = KW(
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:solid => "solid",
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:dash => "dashed",
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:dot => "dotted",
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:dashdot => "dashdotted",
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:dashdotdot => "dashdotdotted",
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)
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const _pgfplotsx_markers = KW(
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:none => "none",
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:cross => "+",
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:xcross => "x",
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:+ => "+",
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:x => "x",
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:utriangle => "triangle*",
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:dtriangle => "triangle*",
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:rtriangle => "triangle*",
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:ltriangle => "triangle*",
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:circle => "*",
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:rect => "square*",
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:star5 => "star",
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:star6 => "asterisk",
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:diamond => "diamond*",
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:pentagon => "pentagon*",
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:hline => "-",
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:vline => "|"
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)
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const _pgfplotsx_legend_pos = KW(
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:bottomleft => "south west",
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:bottomright => "south east",
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:topright => "north east",
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:topleft => "north west",
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:outertopright => "outer north east",
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)
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const _pgfx_series_extrastyle = KW(
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:steppre => "const plot mark right",
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:stepmid => "const plot mark mid",
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:steppost => "const plot",
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:sticks => "ycomb",
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:ysticks => "ycomb",
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:xsticks => "xcomb",
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:scatter => "only marks",
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:shape => "area legends"
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)
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const _pgfx_framestyles = [:box, :axes, :origin, :zerolines, :grid, :none]
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const _pgfx_framestyle_defaults = Dict(:semi => :box)
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# we use the anchors to define orientations for example to align left
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# one needs to use the right edge as anchor
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const _pgfx_annotation_halign = KW(
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:center => "",
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:left => "right",
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:right => "left"
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)
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## --------------------------------------------------------------------------------------
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# Generates a colormap for pgfplots based on a ColorGradient
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# TODO: maybe obsolete
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function pgfx_colormap(grad::ColorGradient)
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join(map(grad.colors) do c
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@sprintf("rgb=(%.8f,%.8f,%.8f)", red(c), green(c), blue(c))
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end,"\n")
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end
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function pgfx_framestyle(style::Symbol)
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if style in _pgfx_framestyles
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return style
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else
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default_style = get(_pgfx_framestyle_defaults, style, :axes)
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@warn("Framestyle :$style is not (yet) supported by the PGFPlots backend. :$default_style was cosen instead.")
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default_style
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end
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end
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pgfx_thickness_scaling(plt::Plot) = plt[:thickness_scaling]
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pgfx_thickness_scaling(sp::Subplot) = pgfx_thickness_scaling(sp.plt)
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pgfx_thickness_scaling(series) = pgfx_thickness_scaling(series[:subplot])
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function pgfx_fillstyle(plotattributes, i = 1)
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cstr = get_fillcolor(plotattributes, i)
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a = alpha(cstr)
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fa = get_fillalpha(plotattributes, i)
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if fa !== nothing
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a = fa
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end
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PGFPlotsX.Options("fill" => cstr, "fill opacity" => a)
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end
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function pgfx_linestyle(linewidth::Real, color, α = 1, linestyle = "solid")
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cstr = plot_color(color, α)
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a = alpha(cstr)
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return PGFPlotsX.Options(
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"color" => cstr,
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"draw opacity" => a,
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"line width" => linewidth,
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get(_pgfplotsx_linestyles, linestyle, "solid") => nothing
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)
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end
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function pgfx_linestyle(plotattributes, i = 1)
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lw = pgfx_thickness_scaling(plotattributes) * get_linewidth(plotattributes, i)
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lc = get_linecolor(plotattributes, i)
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la = get_linealpha(plotattributes, i)
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ls = get_linestyle(plotattributes, i)
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return pgfx_linestyle(lw, lc, la, ls)
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end
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function pgfx_font(fontsize, thickness_scaling = 1, font = "\\selectfont")
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fs = fontsize * thickness_scaling
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return string("{\\fontsize{", fs, " pt}{", 1.3fs, " pt}", font, "}")
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end
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function pgfx_marker(plotattributes, i = 1)
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shape = _cycle(plotattributes[:markershape], i)
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cstr = plot_color(get_markercolor(plotattributes, i), get_markeralpha(plotattributes, i))
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a = alpha(cstr)
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cstr_stroke = plot_color(get_markerstrokecolor(plotattributes, i), get_markerstrokealpha(plotattributes, i))
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a_stroke = alpha(cstr_stroke)
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return PGFPlotsX.Options(
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"mark" => get(_pgfplotsx_markers, shape, "*"),
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"mark size" => pgfx_thickness_scaling(plotattributes) * 0.5 * _cycle(plotattributes[:markersize], i),
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"mark options" => PGFPlotsX.Options(
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"color" => cstr_stroke,
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"draw opacity" => a_stroke,
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"fill" => cstr,
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"fill opacity" => a,
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"line width" => pgfx_thickness_scaling(plotattributes) * _cycle(plotattributes[:markerstrokewidth], i),
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"rotate" => if shape == :dtriangle
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180
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elseif shape == :rtriangle
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270
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elseif shape == :ltriangle
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90
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else
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0
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end,
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get(_pgfplotsx_linestyles, _cycle(plotattributes[:markerstrokestyle], i), "solid") => nothing
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)
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)
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end
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function pgfx_add_annotation!(o, x, y, val, thickness_scaling = 1)
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# Construct the style string.
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# Currently supports color and orientation
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cstr = val.font.color
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a = alpha(cstr)
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push!(o, ["\\node",
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PGFPlotsX.Options(
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get(_pgfx_annotation_halign,val.font.halign,"") => nothing,
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"color" => cstr,
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"draw opacity" => convert(Float16, a),
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"rotate" => val.font.rotation,
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"font" => pgfx_font(val.font.pointsize, thickness_scaling)
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),
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" at ",
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PGFPlotsX.Coordinate(x, y),
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"{$(val.str).};"
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])
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end
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# --------------------------------------------------------------------------------------
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function pgfx_axis!(opt::PGFPlotsX.Options, sp::Subplot, letter)
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axis = sp[Symbol(letter,:axis)]
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# turn off scaled ticks
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push!(opt, "scaled $(letter) ticks" => "false",
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string(letter,:label) => axis[:guide],
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)
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# set to supported framestyle
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framestyle = pgfx_framestyle(sp[:framestyle])
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# axis label position
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labelpos = ""
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if letter == :x && axis[:guide_position] == :top
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labelpos = "at={(0.5,1)},above,"
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elseif letter == :y && axis[:guide_position] == :right
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labelpos = "at={(1,0.5)},below,"
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end
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# Add label font
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cstr = plot_color(axis[:guidefontcolor])
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α = alpha(cstr)
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push!(opt, string(letter, "label style") => PGFPlotsX.Options(
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labelpos => nothing,
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"font" => pgfx_font(axis[:guidefontsize], pgfx_thickness_scaling(sp)),
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"color" => cstr,
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"draw opacity" => α,
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"rotate" => axis[:guidefontrotation],
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)
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)
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# flip/reverse?
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axis[:flip] && push!(opt, "$letter dir" => "reverse")
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# scale
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scale = axis[:scale]
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if scale in (:log2, :ln, :log10)
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push!(opt, string(letter,:mode) => "log")
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scale == :ln || push!(opt, "log basis $letter" => "$(scale == :log2 ? 2 : 10)")
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end
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# ticks on or off
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if axis[:ticks] in (nothing, false, :none) || framestyle == :none
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push!(opt, "$(letter)majorticks" => "false")
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end
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# grid on or off
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if axis[:grid] && framestyle != :none
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push!(opt, "$(letter)majorgrids" => "true")
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else
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push!(opt, "$(letter)majorgrids" => "false")
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end
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# limits
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# TODO: support zlims
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if letter != :z
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lims = ispolar(sp) && letter == :x ? rad2deg.(axis_limits(sp, :x)) : axis_limits(sp, letter)
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push!( opt,
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string(letter,:min) => lims[1],
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string(letter,:max) => lims[2]
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)
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end
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if !(axis[:ticks] in (nothing, false, :none, :native)) && framestyle != :none
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ticks = get_ticks(sp, axis)
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#pgf plot ignores ticks with angle below 90 when xmin = 90 so shift values
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tick_values = ispolar(sp) && letter == :x ? [rad2deg.(ticks[1])[3:end]..., 360, 405] : ticks[1]
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push!(opt, string(letter, "tick") => string("{", join(tick_values,","), "}"))
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if axis[:showaxis] && axis[:scale] in (:ln, :log2, :log10) && axis[:ticks] == :auto
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# wrap the power part of label with }
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tick_labels = Vector{String}(undef, length(ticks[2]))
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for (i, label) in enumerate(ticks[2])
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base, power = split(label, "^")
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power = string("{", power, "}")
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tick_labels[i] = string(base, "^", power)
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end
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push!(opt, string(letter, "ticklabels") => string("{\$", join(tick_labels,"\$,\$"), "\$}"))
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elseif axis[:showaxis]
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tick_labels = ispolar(sp) && letter == :x ? [ticks[2][3:end]..., "0", "45"] : ticks[2]
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if axis[:formatter] in (:scientific, :auto)
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tick_labels = string.("\$", convert_sci_unicode.(tick_labels), "\$")
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tick_labels = replace.(tick_labels, Ref("×" => "\\times"))
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end
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push!(opt, string(letter, "ticklabels") => string("{", join(tick_labels,","), "}"))
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else
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push!(opt, string(letter, "ticklabels") => "{}")
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end
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push!(opt, string(letter, "tick align") => (axis[:tick_direction] == :out ? "outside" : "inside"))
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cstr = plot_color(axis[:tickfontcolor])
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α = alpha(cstr)
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push!(opt, string(letter, "ticklabel style") => PGFPlotsX.Options(
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"font" => pgfx_font(axis[:tickfontsize], pgfx_thickness_scaling(sp)),
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"color" => cstr,
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"draw opacity" => α,
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"rotate" => axis[:tickfontrotation]
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)
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)
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push!(opt, string(letter, " grid style") => pgfx_linestyle(pgfx_thickness_scaling(sp) * axis[:gridlinewidth], axis[:foreground_color_grid], axis[:gridalpha], axis[:gridstyle])
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)
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end
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# framestyle
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if framestyle in (:axes, :origin)
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axispos = framestyle == :axes ? "left" : "middle"
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if axis[:draw_arrow]
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push!(opt, string("axis ", letter, " line") => axispos)
|
||
else
|
||
# the * after line disables the arrow at the axis
|
||
push!(opt, string("axis ", letter, " line*") => axispos)
|
||
end
|
||
end
|
||
|
||
if framestyle == :zerolines
|
||
push!(opt, string("extra ", letter, " ticks") => "0")
|
||
push!(opt, string("extra ", letter, " tick labels") => "")
|
||
push!(opt, string("extra ", letter, " tick style") => PGFPlotsX.Options(
|
||
"grid" => "major",
|
||
"major grid style" => pgfx_linestyle(pgfx_thickness_scaling(sp), axis[:foreground_color_border], 1.0)
|
||
)
|
||
)
|
||
end
|
||
|
||
if !axis[:showaxis]
|
||
push!(opt, "separate axis lines")
|
||
end
|
||
if !axis[:showaxis] || framestyle in (:zerolines, :grid, :none)
|
||
push!(opt, string(letter, " axis line style") => "{draw opacity = 0}")
|
||
else
|
||
push!(opt, string(letter, " axis line style") => pgfx_linestyle(pgfx_thickness_scaling(sp), axis[:foreground_color_border], 1.0)
|
||
)
|
||
end
|
||
end
|
||
# --------------------------------------------------------------------------------------
|
||
# display calls this and then _display, its called 3 times for plot(1:5)
|
||
# Set the (left, top, right, bottom) minimum padding around the plot area
|
||
# to fit ticks, tick labels, guides, colorbars, etc.
|
||
function _update_min_padding!(sp::Subplot{PGFPlotsXBackend})
|
||
# TODO: make padding more intelligent
|
||
sp.minpad = (20mm, 5mm, 2mm, 10mm)
|
||
end
|
||
|
||
function _create_backend_figure(plt::Plot{PGFPlotsXBackend})
|
||
plt.o = PGFPlotsXPlot()
|
||
end
|
||
|
||
function _series_added(plt::Plot{PGFPlotsXBackend}, series::Series)
|
||
plt.o.is_created = false
|
||
end
|
||
|
||
function _update_plot_object(plt::Plot{PGFPlotsXBackend})
|
||
plt.o(plt)
|
||
end
|
||
|
||
function _show(io::IO, mime::MIME"image/svg+xml", plt::Plot{PGFPlotsXBackend})
|
||
_update_plot_object(plt)
|
||
show(io, mime, plt.o)
|
||
end
|
||
|
||
function _show(io::IO, mime::MIME"application/pdf", plt::Plot{PGFPlotsXBackend})
|
||
_update_plot_object(plt)
|
||
show(io, mime, plt.o)
|
||
end
|
||
|
||
function _show(io::IO, mime::MIME"image/png", plt::Plot{PGFPlotsXBackend})
|
||
_update_plot_object(plt)
|
||
show(io, mime, plt.o)
|
||
end
|
||
|
||
function _show(io::IO, mime::MIME"application/x-tex", plt::Plot{PGFPlotsXBackend})
|
||
_update_plot_object(plt)
|
||
PGFPlotsX.print_tex(io, plt.o.the_plot)
|
||
end
|
||
|
||
function _display(plt::Plot{PGFPlotsXBackend})
|
||
# fn = string(tempname(),".svg")
|
||
# PGFPlotsX.pgfsave(fn, plt.o)
|
||
# open_browser_window(fn)
|
||
plt.o
|
||
end
|