Skip to contents

Stroke style of a path page-object

Source: R/paths.R
pdf_path_stroke.Rd

Returns the RGBA stroke color and stroke width of obj as a flat named numeric vector. Color channels are integers in [0, 255]; width is in PDF points. When PDFium reports that the object has no stroke set, every value is NA.

Usage

pdf_path_stroke(obj)

Arguments

obj

A pdfium_obj of type "path" (from pdf_page_objects()).

Value

A named numeric vector with elements red, green, blue, alpha (0-255 channels) and width (PDF points). All-NA when no stroke is set.

Details

The returned shape mirrors pdf_path_fill() (a flat named vector). The downstream tibble columns in pdf_extract_paths() (stroke_red, stroke_green, stroke_blue, stroke_alpha, stroke_width) are built by prefixing the names of this vector.

See also

pdf_path_fill(), pdf_path_segments()

Examples

fixture <- system.file("extdata", "fixtures", "shapes.pdf",
  package = "pdfium"
)
if (nzchar(fixture)) {
  doc <- pdf_doc_open(fixture)
  p <- pdf_page_load(doc, 1)
  path_obj <- Filter(\(o) o$type == "path", pdf_page_objects(p))[[1]]
  pdf_path_stroke(path_obj)
  pdf_page_close(p)
  pdf_doc_close(doc)
}