Draw line bounding boxes — draw

Plots the line bounding boxes identified by Document AI (DAI) onto images of the submitted document. Generates an annotated .png file for each page in the original document.

draw_lines(
  object,
  type = "sync",
  prefix = NULL,
  dir = getwd(),
  linecol = "red",
  linewd = 3,
  fontcol = "blue",
  fontsize = 4
)

Arguments

object: either a HTTP response object from dai_sync() or the path to a JSON file from dai_async().
type: one of "sync" or "async", depending on the function used to process the original document.
prefix: string to be prepended to the output png filename.
dir: path to the desired output directory.
linecol: color of the bounding box line.
linewd: width of the bounding box line.
fontcol: color of the box numbers.
fontsize: size of the box numbers.

Value

no return value, called for side effects.

Details

Not vectorized, but documents can be multi-page.

Examples

if (FALSE) { # \dontrun{
resp <- dai_sync("page.pdf")
draw_lines(resp)

draw_lines("page.json", type = "async")
} # }