Plots.jl/src/backends/pgfplotsx.jl
2019-11-29 11:47:45 +01:00

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using Contour: Contour
Base.@kwdef mutable struct PGFPlotsXPlot
is_created::Bool = false
was_shown::Bool = false
the_plot::PGFPlotsX.TikzDocument = PGFPlotsX.TikzDocument()
function PGFPlotsXPlot(is_created, was_shown, the_plot)
pgfx_plot = new(is_created, was_shown, the_plot)
PGFPlotsX.push_preamble!(pgfx_plot.the_plot, "\\usetikzlibrary{arrows.meta}")
PGFPlotsX.push_preamble!(pgfx_plot.the_plot, "\\usepgfplotslibrary{patchplots}")
pgfx_plot
end
end
pgfx_axes(pgfx_plot::PGFPlotsXPlot) = pgfx_plot.the_plot.elements[1].elements[1].contents
function surface_to_vecs(x::AVec, y::AVec, s::Union{AMat, Surface})
a = Array(s)
xn = Vector{eltype(x)}(undef, length(a))
yn = Vector{eltype(y)}(undef, length(a))
zn = Vector{eltype(s)}(undef, length(a))
for (n, (i, j)) in enumerate(Tuple.(CartesianIndices(a)))
xn[n] = x[j]
yn[n] = y[i]
zn[n] = a[i,j]
end
return xn, yn, zn
end
function Base.show(io::IO, mime::MIME, pgfx_plot::PGFPlotsXPlot)
show(io::IO, mime, pgfx_plot.the_plot)
end
function Base.push!(pgfx_plot::PGFPlotsXPlot, item)
push!(pgfx_plot.the_plot, item)
end
function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
if !pgfx_plot.is_created
cols, rows = size(plt.layout.grid)
the_plot = PGFPlotsX.TikzPicture()
# the combination of groupplot and polaraxis is broken in pgfplots
if !any( sp -> ispolar(sp), plt.subplots )
pl_height, pl_width = plt.attr[:size]
push!( the_plot, PGFPlotsX.GroupPlot(
PGFPlotsX.Options(
"group style" => PGFPlotsX.Options(
"group size" => string(cols)*" by "*string(rows),
"horizontal sep" => string(maximum(sp -> sp.minpad[1], plt.subplots)),
"vertical sep" => string(maximum(sp -> sp.minpad[2], plt.subplots)),
),
"height" => pl_height > 0 ? string(pl_height)*"px" : "{}",
"width" => pl_width > 0 ? string(pl_width)*"px" : "{}",
)
)
)
end
for sp in plt.subplots
bb = bbox(sp)
cstr = plot_color(sp[:background_color_legend])
a = alpha(cstr)
title_cstr = plot_color(sp[:titlefontcolor])
title_a = alpha(cstr)
axis_opt = PGFPlotsX.Options(
"height" => string(height(bb)),
"width" => string(width(bb)),
"title" => sp[:title],
"title style" => PGFPlotsX.Options(
"font" => pgfx_font(sp[:titlefontsize], pgfx_thickness_scaling(sp)),
"color" => title_cstr,
"draw opacity" => title_a,
"rotate" => sp[:titlefontrotation]
),
"legend pos" => get(_pgfplotsx_legend_pos, sp[:legend], "outer north east"),
"legend style" => PGFPlotsX.Options(
pgfx_linestyle(pgfx_thickness_scaling(sp), sp[:foreground_color_legend], 1.0, "solid") => nothing,
"fill" => cstr,
"font" => pgfx_font(sp[:legendfontsize], pgfx_thickness_scaling(sp))
),
"axis background/.style" => PGFPlotsX.Options(
"fill" => sp[:background_color_inside]
)
)
for letter in (:x, :y, :z)
if letter != :z || is3d(sp)
pgfx_axis!(axis_opt, sp, letter)
end
end
# Search series for any gradient. In case one series uses a gradient set
# the colorbar and colomap.
# The reasoning behind doing this on the axis level is that pgfplots
# colorbar seems to only works on axis level and needs the proper colormap for
# correctly displaying it.
# It's also possible to assign the colormap to the series itself but
# then the colormap needs to be added twice, once for the axis and once for the
# series.
# As it is likely that all series within the same axis use the same
# colormap this should not cause any problem.
for series in series_list(sp)
for col in (:markercolor, :fillcolor, :linecolor)
if typeof(series.plotattributes[col]) == ColorGradient
PGFPlotsX.push_preamble!(pgfx_plot.the_plot, """\\pgfplotsset{
colormap={plots$(sp.attr[:subplot_index])}{$(pgfx_colormap(series.plotattributes[col]))},
}""")
push!(axis_opt,
"colorbar" => nothing,
"colormap name" => "plots$(sp.attr[:subplot_index])",
)
# goto is needed to break out of col and series for
@goto colorbar_end
end
end
end
@label colorbar_end
push!(axis_opt, "colorbar style" => PGFPlotsX.Options(
"title" => sp[:colorbar_title],
"point meta max" => get_clims(sp)[2],
"point meta min" => get_clims(sp)[1]
)
)
if is3d(sp)
azim, elev = sp[:camera]
push!( axis_opt, "view" => (azim, elev) )
end
axisf = if sp[:projection] == :polar
# push!(axis_opt, "xmin" => 90)
# push!(axis_opt, "xmax" => 450)
PGFPlotsX.PolarAxis
else
PGFPlotsX.Axis
end
axis = axisf(
axis_opt
)
for series in series_list(sp)
opt = series.plotattributes
st = series[:seriestype]
series_opt = PGFPlotsX.Options(
"color" => single_color(opt[:linecolor]),
)
if is3d(series) || st == :heatmap #|| isfilledcontour(series)
series_func = PGFPlotsX.Plot3
else
series_func = PGFPlotsX.Plot
end
if isfilledcontour(series)
# push!(series_opt, "contour filled" => nothing)
# st = :surface
# axis_opt["view"] = (0, 90)
# push!(series_opt, "shader" => "interp")
end
if series[:fillrange] !== nothing && !isfilledcontour(series)
push!(series_opt, "area legend" => nothing)
end
if st == :heatmap
push!(axis.options,
"view" => "{0}{90}",
"shader" => "flat corner",
)
end
# treat segments
segments = if st in (:wireframe, :heatmap, :contour, :surface, :contour3d)
iter_segments(surface_to_vecs(series[:x], series[:y], series[:z])...)
else
iter_segments(series)
end
segment_opt = PGFPlotsX.Options()
for (i, rng) in enumerate(segments)
segment_opt = merge( segment_opt, pgfx_linestyle(opt, i) )
if opt[:markershape] != :none
marker = opt[:markershape]
if marker isa Shape
x = marker.x
y = marker.y
scale_factor = 0.025
mark_size = opt[:markersize] * scale_factor
path = join(["($(x[i] * mark_size), $(y[i] * mark_size))" for i in eachindex(x)], " -- ")
PGFPlotsX.push_preamble!(pgfx_plot.the_plot,
"""
\\pgfdeclareplotmark{PlotsShape}{
\\draw $path;
}
"""
)
end
segment_opt = merge( segment_opt, pgfx_marker(opt, i) )
end
if st == :shape ||
(series[:fillrange] !== nothing && !isfilledcontour(series))
segment_opt = merge( segment_opt, pgfx_fillstyle(opt, i) )
end
coordinates = pgfx_series_coordinates!( sp,
isfilledcontour(series) ? :filledcontour : st,
segment_opt, opt, rng )
segment_plot = series_func(
merge(series_opt, segment_opt),
coordinates,
(series[:fillrange] !== nothing && !isfilledcontour(series)) ? "\\closedcycle" : "{}"
)
push!(axis, segment_plot)
# add to legend?
if i == 1 && opt[:label] != "" && sp[:legend] != :none && should_add_to_legend(series)
push!( axis, PGFPlotsX.LegendEntry( opt[:label] )
)
end
# add series annotations
anns = series[:series_annotations]
for (xi,yi,str,fnt) in EachAnn(anns, series[:x], series[:y])
pgfx_add_annotation!(axis, xi, yi, PlotText(str, fnt), pgfx_thickness_scaling(series))
end
end
# add subplot annotations
anns = sp.attr[:annotations]
for (xi,yi,txt) in anns
pgfx_add_annotation!(axis, xi, yi, txt)
end
end
if ispolar(sp)
axes = the_plot
else
axes = the_plot.elements[1]
end
push!( axes, axis )
if length(plt.o.the_plot.elements) > 0
plt.o.the_plot.elements[1] = the_plot
else
push!(plt.o, the_plot)
end
end
pgfx_plot.is_created = true
end
end
## seriestype specifics
@inline function pgfx_series_coordinates!(sp, st, segment_opt, opt, rng)
# function args
args = if st in (:contour, :contour3d, :filledcontour)
opt[:x], opt[:y], Array(opt[:z])'
elseif st in (:heatmap, :surface, :wireframe)
surface_to_vecs(opt[:x], opt[:y], opt[:z])
elseif is3d(st)
opt[:x], opt[:y], opt[:z]
elseif st == :straightline
straightline_data(series)
elseif st == :shape
shape_data(series)
elseif ispolar(sp)
theta, r = opt[:x], opt[:y]
rad2deg.(theta), r
else
opt[:x], opt[:y]
end
seg_args = if st in (:contour, :contour3d, :filledcontour)
args
else
(arg[rng] for arg in args)
end
if opt[:quiver] !== nothing
push!(segment_opt, "quiver" => PGFPlotsX.Options(
"u" => "\\thisrow{u}",
"v" => "\\thisrow{v}",
pgfx_arrow(opt[:arrow]) => nothing
),
)
x, y = collect(seg_args)
return PGFPlotsX.Table([:x => x, :y => y, :u => opt[:quiver][1], :v => opt[:quiver][2]])
else
pgfx_series_coordinates!(Val(st), segment_opt, opt, seg_args)
end
end
function pgfx_series_coordinates!(st_val::Union{Val{:path}, Val{:path3d}, Val{:straightline}}, segment_opt, opt, args)
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Union{Val{:scatter}, Val{:scatter3d}}, segment_opt, opt, args)
push!( segment_opt, "only marks" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:heatmap}, segment_opt, opt, args)
push!(segment_opt,
"surf" => nothing,
"mesh/rows" => length(opt[:x]),
"mesh/cols" => length(opt[:y])
)
return PGFPlotsX.Table(args...)
end
function pgfx_series_coordinates!(st_val::Val{:stepre}, segment_opt, opt, args)
push!( segment_opt, "const plot mark right" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:stepmid}, segment_opt, opt, args)
push!( segment_opt, "const plot mark mid" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:steppost}, segment_opt, opt, args)
push!( segment_opt, "const plot" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Union{Val{:ysticks},Val{:sticks}}, segment_opt, opt, args)
push!( segment_opt, "ycomb" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:xsticks}, segment_opt, opt, args)
push!( segment_opt, "xcomb" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:surface}, segment_opt, opt, args)
push!( segment_opt, "surf" => nothing,
"mesh/rows" => length(opt[:x]),
"mesh/cols" => length(opt[:y]),
)
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:volume}, segment_opt, opt, args)
push!( segment_opt, "patch" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:wireframe}, segment_opt, opt, args)
push!( segment_opt, "mesh" => nothing,
"mesh/rows" => length(opt[:x])
)
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Val{:shape}, segment_opt, opt, args)
push!( segment_opt, "area legends" => nothing )
return PGFPlotsX.Coordinates(args...)
end
function pgfx_series_coordinates!(st_val::Union{Val{:contour}, Val{:contour3d}}, segment_opt, opt, args)
push!(segment_opt,
"contour prepared" => PGFPlotsX.Options(
"labels" => opt[:contour_labels],
),
)
return PGFPlotsX.Table(Contour.contours(args..., opt[:levels]))
end
function pgfx_series_coordinates!(st_val::Val{:filledcontour}, segment_opt, opt, args)
xs, ys, zs = collect(args)
push!(segment_opt,
"contour filled" => PGFPlotsX.Options(
"labels" => opt[:contour_labels],
),
"point meta" => "explicit",
"shader" => "flat"
)
if opt[:levels] isa Number
push!(segment_opt["contour filled"],
"number" => opt[:levels],
)
elseif opt[:levels] isa AVec
push!(segment_opt["contour filled"],
"levels" => opt[:levels],
)
end
cs = join([
join(["($x, $y) [$(zs[j, i])]" for (j, x) in enumerate(xs)], " ") for (i, y) in enumerate(ys)], "\n\n"
)
"""
coordinates {
$cs
};
"""
end
##
const _pgfplotsx_linestyles = KW(
:solid => "solid",
:dash => "dashed",
:dot => "dotted",
:dashdot => "dashdotted",
:dashdotdot => "dashdotdotted",
)
const _pgfplotsx_markers = KW(
:none => "none",
:cross => "+",
:xcross => "x",
:+ => "+",
:x => "x",
:utriangle => "triangle*",
:dtriangle => "triangle*",
:rtriangle => "triangle*",
:ltriangle => "triangle*",
:circle => "*",
:rect => "square*",
:star5 => "star",
:star6 => "asterisk",
:diamond => "diamond*",
:pentagon => "pentagon*",
:hline => "-",
:vline => "|"
)
const _pgfplotsx_legend_pos = KW(
:bottomleft => "south west",
:bottomright => "south east",
:topright => "north east",
:topleft => "north west",
:outertopright => "outer north east",
)
const _pgfx_framestyles = [:box, :axes, :origin, :zerolines, :grid, :none]
const _pgfx_framestyle_defaults = Dict(:semi => :box)
# we use the anchors to define orientations for example to align left
# one needs to use the right edge as anchor
const _pgfx_annotation_halign = KW(
:center => "",
:left => "right",
:right => "left"
)
## --------------------------------------------------------------------------------------
# Generates a colormap for pgfplots based on a ColorGradient
pgfx_arrow(::Nothing) = "every arrow/.append style={-}"
function pgfx_arrow( arr::Arrow )
components = String[]
head = String[]
push!(head, "{stealth[length = $(arr.headlength)pt, width = $(arr.headwidth)pt")
if arr.style == :open
push!(head, ", open")
end
push!(head, "]}")
head = join(head, "")
if arr.side == :both || arr.side == :tail
push!( components, head )
end
push!(components, "-")
if arr.side == :both || arr.side == :head
push!( components, head )
end
components = join( components, "" )
return "every arrow/.append style={$(components)}"
end
function pgfx_colormap(grad::ColorGradient)
join(map(grad.colors) do c
@sprintf("rgb=(%.8f,%.8f,%.8f)", red(c), green(c), blue(c))
end,"\n")
end
function pgfx_colormap(grad::Vector{<:Colorant})
join(map(grad) do c
@sprintf("rgb=(%.8f,%.8f,%.8f)", red(c), green(c), blue(c))
end,"\n")
end
function pgfx_framestyle(style::Symbol)
if style in _pgfx_framestyles
return style
else
default_style = get(_pgfx_framestyle_defaults, style, :axes)
@warn("Framestyle :$style is not (yet) supported by the PGFPlots backend. :$default_style was cosen instead.")
default_style
end
end
pgfx_thickness_scaling(plt::Plot) = plt[:thickness_scaling]
pgfx_thickness_scaling(sp::Subplot) = pgfx_thickness_scaling(sp.plt)
pgfx_thickness_scaling(series) = pgfx_thickness_scaling(series[:subplot])
function pgfx_fillstyle(plotattributes, i = 1)
cstr = get_fillcolor(plotattributes, i)
a = get_fillalpha(plotattributes, i)
if a === nothing
a = alpha(single_color(cstr))
end
PGFPlotsX.Options("fill" => cstr, "fill opacity" => a)
end
function pgfx_linestyle(linewidth::Real, color, α = 1, linestyle = "solid")
cstr = plot_color(color, α)
a = alpha(cstr)
return PGFPlotsX.Options(
"color" => cstr,
"draw opacity" => a,
"line width" => linewidth,
get(_pgfplotsx_linestyles, linestyle, "solid") => nothing
)
end
function pgfx_linestyle(plotattributes, i = 1)
lw = pgfx_thickness_scaling(plotattributes) * get_linewidth(plotattributes, i)
lc = single_color(get_linecolor(plotattributes, i))
la = get_linealpha(plotattributes, i)
ls = get_linestyle(plotattributes, i)
return pgfx_linestyle(lw, lc, la, ls)
end
function pgfx_font(fontsize, thickness_scaling = 1, font = "\\selectfont")
fs = fontsize * thickness_scaling
return string("{\\fontsize{", fs, " pt}{", 1.3fs, " pt}", font, "}")
end
function pgfx_marker(plotattributes, i = 1)
shape = _cycle(plotattributes[:markershape], i)
cstr = plot_color(get_markercolor(plotattributes, i), get_markeralpha(plotattributes, i))
a = alpha(cstr)
cstr_stroke = plot_color(get_markerstrokecolor(plotattributes, i), get_markerstrokealpha(plotattributes, i))
a_stroke = alpha(cstr_stroke)
mark_size = pgfx_thickness_scaling(plotattributes) * 0.5 * _cycle(plotattributes[:markersize], i)
return PGFPlotsX.Options(
"mark" => shape isa Shape ? "PlotsShape" : get(_pgfplotsx_markers, shape, "*"),
"mark size" => "$mark_size pt",
"mark options" => PGFPlotsX.Options(
"color" => cstr_stroke,
"draw opacity" => a_stroke,
"fill" => cstr,
"fill opacity" => a,
"line width" => pgfx_thickness_scaling(plotattributes) * _cycle(plotattributes[:markerstrokewidth], i),
"rotate" => if shape == :dtriangle
180
elseif shape == :rtriangle
270
elseif shape == :ltriangle
90
else
0
end,
get(_pgfplotsx_linestyles, _cycle(plotattributes[:markerstrokestyle], i), "solid") => nothing
)
)
end
function pgfx_add_annotation!(o, x, y, val, thickness_scaling = 1)
# Construct the style string.
# Currently supports color and orientation
cstr = val.font.color
a = alpha(cstr)
push!(o, ["\\node",
PGFPlotsX.Options(
get(_pgfx_annotation_halign,val.font.halign,"") => nothing,
"color" => cstr,
"draw opacity" => convert(Float16, a),
"rotate" => val.font.rotation,
"font" => pgfx_font(val.font.pointsize, thickness_scaling)
),
" at ",
PGFPlotsX.Coordinate(x, y),
"{$(val.str).};"
])
end
# --------------------------------------------------------------------------------------
function pgfx_axis!(opt::PGFPlotsX.Options, sp::Subplot, letter)
axis = sp[Symbol(letter,:axis)]
# turn off scaled ticks
push!(opt, "scaled $(letter) ticks" => "false",
string(letter,:label) => axis[:guide],
)
# set to supported framestyle
framestyle = pgfx_framestyle(sp[:framestyle])
# axis label position
labelpos = ""
if letter == :x && axis[:guide_position] == :top
labelpos = "at={(0.5,1)},above,"
elseif letter == :y && axis[:guide_position] == :right
labelpos = "at={(1,0.5)},below,"
end
# Add label font
cstr = plot_color(axis[:guidefontcolor])
α = alpha(cstr)
push!(opt, string(letter, "label style") => PGFPlotsX.Options(
labelpos => nothing,
"font" => pgfx_font(axis[:guidefontsize], pgfx_thickness_scaling(sp)),
"color" => cstr,
"draw opacity" => α,
"rotate" => axis[:guidefontrotation],
)
)
# flip/reverse?
axis[:flip] && push!(opt, "$letter dir" => "reverse")
# scale
scale = axis[:scale]
if scale in (:log2, :ln, :log10)
push!(opt, string(letter,:mode) => "log")
scale == :ln || push!(opt, "log basis $letter" => "$(scale == :log2 ? 2 : 10)")
end
# ticks on or off
if axis[:ticks] in (nothing, false, :none) || framestyle == :none
push!(opt, "$(letter)majorticks" => "false")
end
# grid on or off
if axis[:grid] && framestyle != :none
push!(opt, "$(letter)majorgrids" => "true")
else
push!(opt, "$(letter)majorgrids" => "false")
end
# limits
lims = ispolar(sp) && letter == :x ? rad2deg.(axis_limits(sp, :x)) : axis_limits(sp, letter)
push!( opt,
string(letter,:min) => lims[1],
string(letter,:max) => lims[2]
)
if !(axis[:ticks] in (nothing, false, :none, :native)) && framestyle != :none
ticks = get_ticks(sp, axis)
#pgf plot ignores ticks with angle below 90 when xmin = 90 so shift values
tick_values = ispolar(sp) && letter == :x ? [rad2deg.(ticks[1])[3:end]..., 360, 405] : ticks[1]
push!(opt, string(letter, "tick") => string("{", join(tick_values,","), "}"))
if axis[:showaxis] && axis[:scale] in (:ln, :log2, :log10) && axis[:ticks] == :auto
# wrap the power part of label with }
tick_labels = Vector{String}(undef, length(ticks[2]))
for (i, label) in enumerate(ticks[2])
base, power = split(label, "^")
power = string("{", power, "}")
tick_labels[i] = string(base, "^", power)
end
push!(opt, string(letter, "ticklabels") => string("{\$", join(tick_labels,"\$,\$"), "\$}"))
elseif axis[:showaxis]
tick_labels = ispolar(sp) && letter == :x ? [ticks[2][3:end]..., "0", "45"] : ticks[2]
if axis[:formatter] in (:scientific, :auto)
tick_labels = string.("\$", convert_sci_unicode.(tick_labels), "\$")
tick_labels = replace.(tick_labels, Ref("×" => "\\times"))
end
push!(opt, string(letter, "ticklabels") => string("{", join(tick_labels,","), "}"))
else
push!(opt, string(letter, "ticklabels") => "{}")
end
push!(opt, string(letter, "tick align") => (axis[:tick_direction] == :out ? "outside" : "inside"))
cstr = plot_color(axis[:tickfontcolor])
α = alpha(cstr)
push!(opt, string(letter, "ticklabel style") => PGFPlotsX.Options(
"font" => pgfx_font(axis[:tickfontsize], pgfx_thickness_scaling(sp)),
"color" => cstr,
"draw opacity" => α,
"rotate" => axis[:tickfontrotation]
)
)
push!(opt, string(letter, " grid style") => pgfx_linestyle(pgfx_thickness_scaling(sp) * axis[:gridlinewidth], axis[:foreground_color_grid], axis[:gridalpha], axis[:gridstyle])
)
end
# framestyle
if framestyle in (:axes, :origin)
axispos = framestyle == :axes ? "left" : "middle"
if axis[:draw_arrow]
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
# order: right, top, left, bottom
sp.minpad = (20mm, 12mm, 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