Is there a way to save the resulting picture as an SVG file? I know that with TikzPictures.jl you can use:

save(SVG("output"), tp)

but I haven't been able to connect this with TreeView.jl. The reason I would like to do this is because I don't use Jupyter notebooks. Instead I use Vim + REPL for writing Julia code.

If there exists an alternative to viewing the picture in a vim + REPL environment other than saving it and opening it with e.g. the browser, I would also be interested in knowing what it is. Thanks in advance.

t = @dag_cse x^2 + y^2 + x^2

gives the wrong tree.

Version 1.5.2 (2020-09-23)
Stacktrace:
[1] getindex at .\dict.jl:467 [inlined]
[2] #37 at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\manifest.jl:215 [inlined]
[3] _all(::Pkg.Types.var"#37#40"{Dict{String,Bool}}, ::Dict{String,Base.UUID}, ::Colon) at .\reduce.jl:828
[4] all at .\reduce.jl:823 [inlined]
[5] destructure(::Dict{Base.UUID,Pkg.Types.PackageEntry}) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\manifest.jl:215
[6] write_manifest at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\manifest.jl:233 [inlined]
[7] write_manifest at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\manifest.jl:231 [inlined]
[8] write_env(::Pkg.Types.EnvCache; update_undo::Bool) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:1367
[9] write_env at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Types.jl:1366 [inlined]
[10] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}, ::Array{Base.UUID,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Windows) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\Operations.jl:1143
[11] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.Windows, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:188
[12] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:139
[13] #add#21 at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67 [inlined]
[14] add(::Array{Pkg.Types.PackageSpec,1}) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\API.jl:67
[15] do_cmd!(::Pkg.REPLMode.Command, ::REPL.LineEditREPL) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:404
[16] do_cmd(::REPL.LineEditREPL, ::String; do_rethrow::Bool) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:382
[17] do_cmd at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:377 [inlined]
[18] (::Pkg.REPLMode.var"#24#27"{REPL.LineEditREPL,REPL.LineEdit.Prompt})(::REPL.LineEdit.MIState, ::Base.GenericIOBuffer{Array{UInt8,1}}, ::Bool) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\Pkg\src\REPLMode\REPLMode.jl:546
[19] #invokelatest#1 at .\essentials.jl:710 [inlined]
[20] invokelatest at .\essentials.jl:709 [inlined]
[21] run_interface(::REPL.Terminals.TextTerminal, ::REPL.LineEdit.ModalInterface, ::REPL.LineEdit.MIState) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\REPL\src\LineEdit.jl:2355
[22] run_frontend(::REPL.LineEditREPL, ::REPL.REPLBackendRef) at D:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.5\REPL\src\REPL.jl:1144
[23] (::REPL.var"#38#42"{REPL.LineEditREPL,REPL.REPLBackendRef})() at .\task.jl:356

(@v1.5) pkg> ^C

julia> using TreeView
ERROR: ArgumentError: Package TreeView [39424ebd-4cf3-5550-a685-96706a953f40] is required but does not seem to be installed:

• Run Pkg.instantiate() to install all recorded dependencies.

Stacktrace:
[1] _require(::Base.PkgId) at .\loading.jl:999
[2] require(::Base.PkgId) at .\loading.jl:928
[3] require(::Module, ::Symbol) at .\loading.jl:923

julia>

Running the example doesn' t work for me. The tree is not shown. While using TikzGraphs works. What could be the reason?

I get the following error when running the example ipynb. Any ideas? Thanks!

> @tree x^2 + y^2

! Emergency stop.
LabelledTree({7, 6} directed simple Int64 graph, Any[:+, :^, :x, 2, :^, :y, 2])
<everyjob> ...ring \\def\string \\encodingdefault{OT1}')end }
                                                  \let \f@encoding \encoding...
l.1 
  \documentclass[tikz]{standalone}
End of file on the terminal!



Here is how much of LuaTeX's memory you used:
 8 strings out of 494300
 100000,89155 words of node,token memory allocated 241 words of node memory still in use:
   1 dir, 34 glue_spec nodes
   avail lists: 2:12,3:1,4:1
 4357 multiletter control sequences out of 65536+600000
 14 fonts using 591799 bytes
 5i,0n,1p,61b,15s stack positions out of 5000i,500n,10000p,200000b,100000s
!  ==> Fatal error occurred, no output PDF file produced!

I'm seeing

pdf2svg failure

upon doing @tree x^2 + y^2 in a Jupyter notebook.

Any suggestions @tawheeler ?

This is actually an upstream bug in TikzGraphs: JuliaTeX/TikzGraphs.jl#12 but I figured you might run into it here anyway.

Trying to render an expression that contains symbols generated with gensym() gives a LaTeX error because of the # character in those symbols. Minimal example:

expr = Expr(gensym())
walk_tree(expr)

produces:

! Illegal parameter number in definition of \pgfutil@reserved@a.
<to be read again> 
2
l.13 }
    ;
Error saving as SVG
LaTeX error

Would it be worth just replacing # with another character for now?

Hi,

When executing the simple example

using TreeView

@tree begin
    a = b + c
    d = (a - 2)^2
end

I get an error:

error: error sending request for url (https://relay.fullyjustified.net/default_bundle_v33.tar): error trying to connect: connection closed via error
caused by: error trying to connect: connection closed via error
caused by: connection closed via error

ERROR: LaTeX error

Because I have to work behind a firewall that blocks the URL https://relay.fullyjustified.net. I looked through the src of this package and cannot find anywhere where the code is trying to execute some download. Is there any workaround for this? Thanks!

I'm on [39424ebd] TreeView v0.5.1

The tag name "0.0.2" is not of the appropriate SemVer form (vX.Y.Z).
cc: @dpsanders

I would be more than happy for this package to live at a suitable organisation if that would make things easier.

cc @tawheeler

@tree false && true

in a notebook gives the following error:

! Misplaced alignment tab character &.
<recently read> &
 
l.23 }
    ;
Error saving as SVG

LaTeX error

I'm on Julia 1.0.3, TreeView 0.3.1 in an IJulia notebook:

julia> myexpr = :(1.0 * x[1] + -1.0 * x[2] + -1.0 * x[3])
julia> @tree @eval myexpr
LabelledTree({4, 3} directed simple Int64 graph, Any[:macrocall, Symbol("@eval"), :(#= In[21]:1 =#), :objexpr])

On a side note, it took me a moment to realize that I needed @eval here. If this usage is correct, perhaps there could be an example in the README. This may also be related to #19?!

Let's say you have a DAG representing a package and its dependencies, and their dependencies after them (and so forth).

What's the easiest way to hook into TreeView to plot that dependency graph? And is there a way to make the plot interactive with clicking on nodes?

Think it would be cool if you could keep clicking packages and the dag keeps switching root nodes.

// note that dependencies only appear once in a DAG (every other appearance is removed)

[update:] basically trying to replicate JuliaLang/julia#25951 (comment)

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I'll open a PR within a few hours, please be patient!

If i use a greek letter, the tree view for that symbol is empty. Is this a known issue?

See screenshots below:

Hi all,

LightGraphs is preparing for a fairly large upgrade with Julia 0.6, and I wanted to make you aware of what we're doing. Very few things are breaking, but there will be some potential performance improvements that you might be able to take advantage of.

In a nutshell: we're abstracting Graph and DiGraph, renaming them to SimpleGraph and SimpleDiGraph*, and parameterizing vertex indices to <: Integer. This will allow you to create, e.g., SimpleGraph{UInt8}s that will be much more space-efficient if you have graphs that are < 256 vertices.

*While we plan on more abstractions (e.g., for weighted graphs) in the future, for now Graph and DiGraph will continue to work and will continue to default to SimpleGraph, and the default parameterization for both Simple(Di)Graphs and (Di)Graphs will be Int.

Feel free to review the (very long) WIP at sbromberger/LightGraphs.jl#541 - your feedback would be greatly appreciated.

The URL of this package does not match that stored in METADATA.jl.
cc: @dpsanders

The tag name "0.0.1" is not of the appropriate SemVer form (vX.Y.Z).
cc: @dpsanders

Minimal example:

using TreeView
@tree promote_type(Int64, Float64)

LabelledTree({3, 2} directed simple Int64 graph, Any[:promote_type, :Int64, :Float64])

! Missing $ inserted.
<inserted text> 
$
l.44 }
    ;