igraph in DiagrammeR by timelyportfolio

In response to this tweet

@riannone @abresler @timelyportfolio this popped into my head last week, how hard would it be to dump an igraph or graphNEL into diagrammeR?
— Tim Triche, Jr. (@timtriche) February 24, 2015

I made this little Gist. It illustrates one way to git an igraph into DiagrammeR using grViz. One way to use igraph with mermaid can be seen in this Gist R ( igraph + DiagrammeR + pipeR +htmltools ) + JS ( mermaid.js + d3.js + dagre-d3.js ).

Full attribute customization will probably not be possible with these two methods. For this full set of functionality, Rich Iannone’s work with a data.frame (think get.data.frame from igraph) will provide some amazing results.

code.R

library(igraph)
library(DiagrammeR)

tf <- tempfile()

write.graph(
  graph.famous("Tetrahedron")
  ,tf
  ,format="dot"
)

grViz(
  readLines(tf)
)

library(htmltools)
html_print(tagList(
  lapply(
    c("neato","circo","twopi")
    ,function(engine){ grViz( readLines(tf) , engine = engine ) }
  )  
))


unlink(tf)