brl_begin: Generate and optimize a braille-embedded ready-to-print pdf...
In sjystu/tactileR: Converting R Graphics into a Braille Ready-to-Print PDF

Description Usage Arguments Details Value Author(s) Examples

View source: R/brl_begin.R

Opening braille device for your graphic. Just surround any graphic object between two functions brl_begin() and brl_end(). The graph will be created in PDF format in your current directory, with all text being presented using a braille font. See more details in the example section below.

1 2	brl_begin(file = "tactile.pdf", pt = 11, paper = "special", font = "BRL")

`file`	A character string giving the filename where the image is to be saved. The default file name is "tactile.pdf" if not given.
`pt`	Numeric value specifying braille font size for a created file. Default is 11.
`paper`	Character value setting paper size of output pdf file. Default is "special".
`font`	Character value for font family. Available options include "BRL" for "BRAILLE1.ttf" (Braille Normal) and "SWL" for "Swell-Braille.ttf" (Swell Braille), and "TIMES" for "times.ttf" (Times New Roman). Default is set to "BRL".

brl_begin

*Note*: This function optimizes for both 11*11 and 11*8.5 swell touch papers. When printing a generated braille pdf, just remember two things: 1. check "Fit" in the print dialog box (the shortcut key is ALT+F). 2. Check "Landscape" in the print dialog box as well. * For boxplot, you do not need to check the "Landscape," just leave it as a "Portray." However, please check the "Fit" all the time. Information: If you are not familiar with what swell form machine is, please refer to this web site. A short YouTube video will help you to understand how this function can be employed in conjunction with Swell form machine.

Nothing within the R session, but a pdf file will be created in the user's working directory.

JooYoung Seo, jooyoung@psu.edu

brl_begin(file='tactile.pdf', pt=11, paper='special', font='BRL')
hist(airquality$Ozone)
brl_end()
# The braille ready-to-print pdf version will be created in your working directory.
# Print it out and run the swell touch paper through swell form heating machine.