Save decision tree as svg/png file about radiant

[vnijs]

Don't have an answer for this one. I'm not sure it is possible to download svg plots or include them in knitr documents at this time. You can include them if you use rmarkdown but that doesn't help much in a shiny app. A couple of relevant discussions:

rich-iannone/DiagrammeR#70

yihui/knitr#754

[kmezhoud]

@vnijs Thank You.

[vnijs]

Link to review:

http://stackoverflow.com/questions/31645528/knit-dtdatatable-without-pandoc/31797947#31797947

Others:

http://blog.dominodatalab.com/interactive-dashboards-with-knitr-and-html-widgets/

http://stackoverflow.com/questions/21729415/generate-dynamic-r-markdown-blocks/33222656#33222656

http://stackoverflow.com/questions/33212428/automatically-saving-interactive-graph-in-r-to-a-specified-location-as-a-html-f/33212516#33212516

http://stackoverflow.com/questions/28585238/r-rendering-html-widget-in-external-browser

https://support.rstudio.com/hc/communities/public/questions/202578368-Rendering-HTML-widget-in-external-browser

[kmezhoud]

Hi @vnijs,
thank you for all links. They are useful. I can now save diagrams as html. not bad.
server.R

output$Save_diagrammeR_plot <- downloadHandler(
  filename = function() {
    paste(getwd(),"DiagrammeRplot.html", sep="/")
  },
  content = function(file) {
    saveWidget(  
DiagrammeR::grViz("
    digraph{
      BRCA1  -> IFI16   [arrowhead = normal, color= LightGray, alpha=30, penwidth= 0.2] ;
      BRCA1  ->   NBN [arrowhead = normal] ;
      BRCA1  ->  TP53   [color= LightGray] ;
      IFI16  ->  TP53 [arrowtail = normal] ;
      PML  ->  TP53 [arrowtail = normal]
  },
  engine = neato,   #dot, neato|twopi|circo|
  width = 1200
"), file)
  }

 # browseURL(paste('file://',getwd(),"Reactomeplot.html", sep="/"))
  ## wait 1 sd before delete
  # p1 <- proc.time()
  # Sys.sleep(1)
  # proc.time() - p1
## delete file
  #,unlink(paste(getwd(),"DiagrammeRplot.html", sep="/"))
)

ui.R

downloadButton('Save_diagrammeR_plot', 'HTML')

[vnijs]

Hi @ramnathv

Here are some links i mentioned

[vnijs]

You could try https://github.com/rich-iannone/DiagrammeRsvg for convert a DiagrammeR plot to pdf or png. It requires V8 however and I don't want to add that dependency at this time. I added a function to the report feature so you can include diagrammer plots when you save the report to HTML. Looks like it will take some time before there is a convenient solution for this problem so I'll close this issue for now. Unless @ramnathv has suggestions?

https://github.com/vnijs/radiant/blob/master/inst/base/tools/app/report.R#L131-L177