Error when trying to plot LightGraph

[AnderGray]

Hi, I'm trying to run your LightGraphs integration example in the ReadMe:

julia> using LightGraphs

julia> using GraphPlot

julia> h = watts_strogatz(50, 6, 0.3)
{50, 150} undirected simple Int64 graph

julia> gplot(h)

Spits out the following:

Compose.Context(Measures.BoundingBox{Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}},Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}}}((0.0w, 0.0h), (1.0w, 1.0h)), Compose.UnitBox{Float64,Float64,Float64,Float64}(-1.2, -1.2, 2.4, 2.4, 0.0mm, 0.0mm, 0.0mm, 0.0mm), nothing, nothing, nothing, List([Compose.Context(Measures.BoundingBox{Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}},Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}}}((0.0w, 0.0h), (1.0w, 1.0h)), nothing, nothing, nothing, nothing, List([]), List([Compose.Form{Compose.LinePrimitive}(Compose.LinePrimitive[Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.4667639555874134cx, 0.9356145095216025cy), (-0.1910946725951074cx, 0.9928166827995121cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.46602722084459053cx, 0.9286521636320585cy), (-0.3200188027683644cx, 0.9295647358935727cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.4850268266112858cx, 0.8970861356666258cy), (-0.32346501970303454cx, 0.5874468355186326cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.5103731141319087cx, 0.8942382468870099cy), (-0.607327960968337cx, 0.525527142727961cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.49747980319097207cx, 0.8932918428733937cy), (-0.44941027155552327cx, 0.4604103906980997cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.18748511992088676cx, 0.9830152556108243cy), (-0.2536557931536954cx, 0.9467704515936923cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.1678379837115955cx, 0.9665198182649837cy), (-0.2957487520643521cx, 0.5895819605991601cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.1257746140893063cx, 0.9824677922437537cy), (0.07121131343471858cx, 0.8699805951287545cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.1531077215790578cx, 0.964805546061131cy), (-0.10415776767481959cx, 0.45345266577948873cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.2867839990484749cx, 0.8944939764727855cy), (-0.30499013215790677cx, 0.5913935095958749cy)])  …  Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.975929468357348cx, 0.16678967614733667cy), (-0.8980609580646818cx, 0.2505640202884904cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.9429089593385175cx, 0.4039348796215921cy), (-0.68060755105773cx, 0.1659381605738465cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.9502715383787801cx, 0.39776296779985887cy), (-0.8928114784707577cx, 0.30638953301879845cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.9342989107698864cx, 0.43396928180215383cy), (-0.6511128853974205cx, 0.48505726684316613cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.684585878985573cx, 0.1606267244144396cy), (-0.8438284674051961cx, 0.258014113896729cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.6227842437352192cx, 0.157958232627404cy), (-0.13242840666532352cx, 0.4024806680571907cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.8468373759400486cx, 0.29910329080233056cy), (-0.64347225622178cx, 0.4686910559587194cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.8405919499633318cx, 0.2880593636749664cy), (-0.4789066818447465cx, 0.41367182704260613cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.5833442263502903cx, 0.4785807375961318cy), (-0.4784831847755571cx, 0.43802450094810336cy)]), Compose.LinePrimitive{Tuple{Measures.Measure,Measures.Measure}}(Tuple{Measures.Measure,Measures.Measure}[(-0.13613675565638822cx, 0.41897731734199817cy), (-0.41016018016146366cx, 0.42455193574900046cy)])], Symbol(""))]), List([Compose.Property{Compose.LineWidthPrimitive}(Compose.LineWidthPrimitive[Compose.LineWidthPrimitive(0.4242640687119285mm)]), Compose.Property{Compose.FillPrimitive}(Compose.FillPrimitive[Compose.FillPrimitive(RGBA{Float64}(0.0,0.0,0.0,0.0))]), Compose.Property{Compose.StrokePrimitive}(Compose.StrokePrimitive[Compose.StrokePrimitive(RGBA{Float64}(0.8274509803921568,0.8274509803921568,0.8274509803921568,1.0))])]), 0, false, false, false, false, nothing, nothing, 0.0, Symbol("")), Compose.Context(Measures.BoundingBox{Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}},Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}}}((0.0w, 0.0h), (1.0w, 1.0h)), nothing, nothing, nothing, nothing, List([]), List([]), List([Compose.Property{Compose.LineWidthPrimitive}(Compose.LineWidthPrimitive[Compose.LineWidthPrimitive(0.4242640687119285mm)]), Compose.Property{Compose.StrokePrimitive}(Compose.StrokePrimitive[Compose.StrokePrimitive(RGBA{Float64}(0.8274509803921568,0.8274509803921568,0.8274509803921568,1.0))])]), 0, false, false, false, false, nothing, nothing, 0.0, Symbol("")), Compose.Context(Measures.BoundingBox{Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}},Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}}}((0.0w, 0.0h), (1.0w, 1.0h)), nothing, nothing, nothing, nothing, List([]), List([]), List([Compose.Property{Compose.FontSizePrimitive}(Compose.FontSizePrimitive[Compose.FontSizePrimitive(4.0mm)]), Compose.Property{Compose.StrokePrimitive}(Compose.StrokePrimitive[Compose.StrokePrimitive(RGBA{Float64}(0.0,0.0,0.0,0.0))]), Compose.Property{Compose.FillPrimitive}(Compose.FillPrimitive[Compose.FillPrimitive(RGBA{Float64}(0.0,0.0,0.0,1.0))])]), 0, false, false, false, false, nothing, nothing, 0.0, Symbol("")), Compose.Context(Measures.BoundingBox{Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}},Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}}}((0.0w, 0.0h), (1.0w, 1.0h)), nothing, nothing, nothing, nothing, List([]), List([Compose.Form{Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}}(Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}[Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.5013818693604468cx, 0.9284311923211146cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.156476758822074cx, 1.0cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.28466415425250813cx, 0.9297857072045166cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.30710997695387354cx, 0.5561017788641438cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((0.10191345816748631cx, 0.8524483873725082cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.688596108381407cx, 0.851314866960051cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.19155817285191734cx, 0.7881646079904292cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.3192950483820495cx, 0.6781552698406146cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.47532336153908517cx, 0.640521785546732cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.22535937141625506cx, 0.3130523282808835cy), 0.01414213562373095w)  …  Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.8528108528504416cx, -0.16528471797265742cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.4981214074190191cx, 0.1139270466517528cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.9587522583916649cx, -0.052440253930927994cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-1.0cx, 0.14089354696863343cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.9690925904275081cx, 0.42769235135146366cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.6544239199687394cx, 0.14218068884397495cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.8739904264220297cx, 0.27646014946719366cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.6163192057397988cx, 0.4913341972938563cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.10078873043180336cx, 0.41825821184061973cy), 0.01414213562373095w), Compose.CirclePrimitive{Tuple{Measures.Measure,Measures.Measure},Measures.Measure}((-0.4455082053860485cx, 0.42527104125037885cy), 0.01414213562373095w)], Symbol(""))]), List([Compose.Property{Compose.LineWidthPrimitive}(Compose.LineWidthPrimitive[Compose.LineWidthPrimitive(0.0mm)]), Compose.Property{Compose.StrokePrimitive}(Compose.StrokePrimitive[Compose.StrokePrimitive(RGBA{Float64}(0.0,0.0,0.0,0.0))]), Compose.Property{Compose.FillPrimitive}(Compose.FillPrimitive[Compose.FillPrimitive(RGBA{Float64}(0.25098039215686274,0.8784313725490196,0.8156862745098039,1.0))])]), 0, false, false, false, false, nothing, nothing, 0.0, Symbol("")), Compose.Context(Measures.BoundingBox{Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}},Tuple{Measures.Length{:w,Float64},Measures.Length{:h,Float64}}}((0.0w, 0.0h), (1.0w, 1.0h)), nothing, nothing, nothing, nothing, List([]), List([]), List([Compose.Property{Compose.FontSizePrimitive}(Compose.FontSizePrimitive[Compose.FontSizePrimitive(4.0mm)]), Compose.Property{Compose.StrokePrimitive}(Compose.StrokePrimitive[Compose.StrokePrimitive(RGBA{Float64}(0.0,0.0,0.0,0.0))]), Compose.Property{Compose.FillPrimitive}(Compose.FillPrimitive[Compose.FillPrimitive(RGBA{Float64}(0.0,0.0,0.0,1.0))])]), 0, false, false, false, false, nothing, nothing, 0.0, Symbol(""))]), List([]), List([]), 0, false, false, false, false, nothing, nothing, 0.0, Symbol(""))

and doesn't plot anything. Any help would be much obliged

[simonschoelly]

If you are using Julia in a terminal you can use the glpothtml command, then it will open the plot in a browser windows. gplot works in a Jupyter notebook, as there the Compose object is automatically drawn.

[AnderGray]

Great! Works fine for me. Thanks, a mill

[obrusvit]

Hello, is there a way to show the plot or save the plot to (.png) file from terminal or from script? Thank you

[simonschoelly]

You need the packages Compose.jl and Cairo.jl then you can do

julia> using LightGraphs, GraphPlot, Compose, Cairo

julia> g = smallgraph(:housex)
{5, 8} undirected simple Int64 graph

julia> draw(PNG("mygraph.png"), gplot(g))