Decorate grob (gTree) objects then outputs as IDM compatible PDF

This is an utility function to decorated grob (gTree) object with titles and footnotes in accordance with IDM specification and export as PDF file with full path to program and the output for easy tracking and archiving.

Usage

grobs2pdf(
  grobs,
  titles,
  footnotes,
  progpath,
  outpath,
  fontsize = 9,
  pagesize = "letter.landscape"
)

Arguments

grobs: A grid grob (gTree) object, optionally NULL if only a grob with the decoration should be shown
titles: Vector of character strings. Vector elements are separated by a newline and strings are wrapped according to the page with
footnotes: Vector of character string. Same rules as for titles
progpath: Specify the full path to the R program that generate the grobs and the PDF
outpath: Specify full path to output pdf to BCE or BEE
fontsize: Base font size used in pdf, default set to 9. Font size for title is set to fontsize + 1 (default = 10) and for footnotes set to fontsize - 1 (default = 8)
pagesize: name of paper size and orientation, accepted values include "a4.landscape", "a4.portrait", "letter.portrait" and "letter.landscape" (default)

Value

a pdf file

Author

Chendi Liao (liaoc10) chendi.liao@roche.com

Examples

if (FALSE) {
library(ggplot2)
library(tern)

g <- with(iris, {
  list(
    ggplotGrob(qplot(Sepal.Length, Sepal.Width, col = Species)),
    ggplotGrob(qplot(Sepal.Length, Petal.Length, col = Species)),
    ggplotGrob(qplot(Sepal.Length, Petal.Width, col = Species))
  )
})

grobs2pdf(
  grobs = g,
  titles = "Visualization of Iris Data",
  footnotes = "This is a footnote",
  progpath = "~/example_prog.R",
  outpath = "~/example_grobs2pdf.pdf"
)
}