CODEWITHSUNDEEP
rpdfshinysweavegenerate
Alice
Alice

Reputation: 54

Sweave, Shiny : can't generate a PDF on the server

I'm working on R Sweave to generate a report in PDF in a shiny application on a server. Everything works perfectly in my computer, locally, I can generate my PDF in the application. It also works in the server. But, when I wanted to add an image in a background, a rectangular header, in the R Sweave , it didn't work anymore on the server, it can't be generated.

Here's the code I added in my R Sweave, so my report :

\usepackage{background}
\usepackage{graphicx}

\backgroundsetup{
   scale=0.5,
   angle=0,
   opacity=1,
   color=black,
   contents={\begin{tikzpicture}[remember picture, overlay]
      \node at ([yshift=-.6in] current page.north)
            {\includegraphics[width = \paperwidth]{myheader}};
     \end{tikzpicture}}
 }

Did I forget something ?

Thank you

EDIT : After some researches, I think I probably have a problem with these functions in the script server.R :

output$report <- downloadHandler(

  filename = function(){name()},
  content = function(file) {
    out = knitr::knit2pdf(input="my_report.Rnw",encoding = "UTF-8",clean=TRUE)
    file.rename(out, file)
    file.copy(file,paste0("export/",Sys.Date(),"_",name()))
  },

  contentType = 'application/pdf'
)

It seems that I probably forgot an argument in my function out = knitr::knit2pdf(input="my_report.Rnw",encoding = "UTF-8",clean=TRUE). It seems that it can only manage a text on UTF-8 and geometric forms, not an image.

Upvotes: 0

Views: 182

Answers (1)

Alice
Alice

Reputation: 54

Problem solved! In my R Sweave, I just added \usepackage{tikz} and it works!

Thanks to Dirk Eddelbuettel for his help.

Upvotes: 1

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