Query glyph-specific information from fonts — glyph

This function allows you to extract information about the individual glyphs in a font, based on a specified size. All size related measures are in pixel-units. The function is vectorised to the length of the glyphs vector.

Usage

glyph_info(
  glyphs,
  family = "",
  italic = FALSE,
  weight = "normal",
  width = "undefined",
  size = 12,
  res = 72,
  path = NULL,
  index = 0,
  bold = deprecated()
)

Arguments

glyphs: A vector of glyphs. Strings will be split into separate glyphs automatically
family: The name of the font families to match
italic: logical indicating the font slant
weight: The weight to query for, either in numbers (0, 100, 200, 300, 400, 500, 600, 700, 800, or 900) or strings ("undefined", "thin", "ultralight", "light", "normal", "medium", "semibold", "bold", "ultrabold", or "heavy"). NA will be interpreted as "undefined"/0
width: The width to query for either in numbers (0, 1, 2, 3, 4, 5, 6, 7, 8, or 9) or strings ("undefined", "ultracondensed", "extracondensed", "condensed", "semicondensed", "normal", "semiexpanded", "expanded", "extraexpanded", or "ultraexpanded"). NA will be interpreted as "undefined"/0
size: The pointsize of the font to use for size related measures
res: The ppi of the size related mesures
path, index: path an index of a font file to circumvent lookup based on family and style
bold: Use weight = "bold" instead

Value

A data.frame with information about each glyph, containing the following columns:

glyph: The glyph as a character
index: The index of the glyph in the font file
width: The width of the glyph
height: The height of the glyph
x_bearing: The horizontal distance from the origin to the leftmost part of the glyph
y_bearing: The vertical distance from the origin to the top part of the glyph
x_advance: The horizontal distance to move the cursor after adding the glyph
y_advance: The vertical distance to move the cursor after adding the glyph
bbox: The tight bounding box surrounding the glyph