letterObject: Convert a text element into an R object

In heike/gglogo: Geom for Logo Sequence Plots

Convert a text element into an R object

Description

Convert a text element into an R object

Usage

letterObject(
  ch,
  fontfamily = "Helvetica",
  fontsize = 576,
  fontface = "plain",
  dim = c(480, 480)
)

Arguments

ch	text to be converted, usually just a single letter
fontfamily	R has a few default fonts that are always available, such as e.g. Helvetica, Arial, Courier New, and Garamond. Other fonts might be available depending on the platform used.
fontsize	by default 576. If the resulting string exceeds the boundary of the matrix returned, reduced font size
fontface	character value. Defaults to 'plain'. Other standard options are 'bold', 'italic', 'bold italic'. Some font families supports additional font faces.
dim	vector of length two specifying width and height (in pixels) of the temporary jpg file created for the letter. Defaults to 480 x 480 pixels.

Value

three dimensional matrix of dimension 480 x 480 x 3 of the pixel values, black background and white letter

Examples

plot(letterObject("g", fontfamily="Times New Roman", fontsize=400))
plot(letterObject("q", fontsize=400))
plot(letterObject("B"))

heike/gglogo documentation built on Feb. 3, 2024, 1:45 p.m.