blankPNG: create white background empty PNG

In stationery: Working Examples for Reproducible Research Documents

create white background empty PNG

Description

Sometimes you need a placeholder. If you do, this is it!

Usage

blankPNG(
  file,
  height = 250,
  width = 250,
  messg = "Your Logo Could Be Here",
  pointsize = 12,
  col = "gray50"
)

Arguments

file	A file name for output
height	pixels
width	pixels
messg	Default is a reminder statement inside the resulting image, but set "" if you don't want it.
pointsize	pointsize 12 default
col	Color for text in messg parameter. Default is gray50

Value

NULL is returned if file was created. Otherwise error is reported.

Author(s)

Paul Johnson

Examples

tdir <- tempdir()
dir.create(file.path(tdir, "blanks"), recursive = TRUE)
fn1 <- file.path(tdir, "blanks", "blank1.png")
blankPNG(file = fn1, messg = "Do you want a message?")
## Please inspect
if(interactive()) browseURL(fn1)
fn2 <- file.path(tdir, "blanks", "blank2.png")
blankPNG(file = fn2, height = 2, width = 3, messg = "")
if(interactive()) browseURL(fn2)
## delete test directory
unlink(file.path(tdir, "blanks"), recursive = TRUE)

stationery documentation built on May 29, 2024, 4:56 a.m.