I am using igraph's plot functions for the visualisation of networks. I am wondering that the many parameters in layout.fruchterman.reingold and layout.kamada.kawai functions have been deprecated and therefore the visualisation of large graphs, specially scale free networks, are not looking as good as they were in past versions of igraph (sometime very ugly). I just want to know that is there any solution to achieve similar visualisation using the newest version of igraph.
Looking forward to the reply. Best, Shailesh Tripathi On Tue, Jan 26, 2016 at 7:01 PM, <[email protected]> wrote: > Send igraph-help mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.nongnu.org/mailman/listinfo/igraph-help > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of igraph-help digest..." > > > Today's Topics: > > 1. Layout of nodes in a 2D graph with fixed Y-positions and > random non-overlapping X-positions (Charles Novaes de Santana) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 26 Jan 2016 17:08:13 +0100 > From: Charles Novaes de Santana <[email protected]> > To: Help for igraph users <[email protected]> > Subject: [igraph] Layout of nodes in a 2D graph with fixed Y-positions > and random non-overlapping X-positions > Message-ID: > < > cah-fenjttach4hwrnuuw5dc6_h5v2osg59ejry8hr8tmjbn...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Dear all, > > Does any of you have an idea about how to automatically generate a layout > for a 2D graph considering that: > > 1 - the user gives the Y-position of the nodes > 2 - the user don't care about the X-position of the nodes > 3 - the nodes can have different sizes > 4 - the nodes can not overlap > 5 - the nodes should show their numeric labels, preferably inside them > > I was planning to do this by myself, creating the X-positions according to > the number of nodes in each "level" of the graph and to the maximum size of > a node. And I decided to write to the list just to see if anyone have > implemented it before and could help me. > > Please consider the code below as a starting point: > > ``` > library(igraph) > > nnodes = 100;#number of nodes is 100 > g<-erdos.renyi.game(nnodes,0.07);#random graph with nnodes nodes > ypos<-round(runif(nnodes,min=0,max=3))#positions between 0 and 10 > mysizes<-runif(nnodes,min=8,max=16)#sizes between 3 and 10 > xpos<-runif(nnodes) > mylayout<-as.matrix(cbind(xpos,ypos)) > > png("./test.png",width=1980,height=1240,res=100) > plot(g, layout=mylayout, vertex.size=sizes, axes = FALSE, rescale=FALSE, > ylim=range(ypos), vertex.size=mysizes) > dev.off(); > ``` > The resulting figure is here > < > https://gist.github.com/cndesantana/43468b24b365c44443af#gistcomment-1680269 > > > > Any suggestion about how to define the vector xpos in such a way that I can > avoid nodes to overlap? Any other suggestion to create the layout? > > Thanks for any help! > > Charles > > -- > Um ax?! :) > > -- > Charles Novaes de Santana, PhD > https://github.com/cndesantana > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.nongnu.org/archive/html/igraph-help/attachments/20160126/6f4dbcde/attachment.html > > > > ------------------------------ > > _______________________________________________ > igraph-help mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/igraph-help > > > End of igraph-help Digest, Vol 114, Issue 13 > ******************************************** >
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