Glyph Bitmap Distribution Format - X Window Properties

X Window Properties

X Window font utilities support several properties that can be specified in the STARTPROPERTIES section of a BDF file. A generic BDF file is in ASCII encoding. X Window properties are specified using ISO 8859-1 encoding, which is an extension of ASCII. These properties include:

  • CAP_HEIGHT integer -- the height above the baseline of a capital letter (See Cap height).
  • COPYRIGHT string -- a copyright statement.
  • DEFAULT_CHAR positive -- the default character (glyph) to display for an undefined glyph.
  • FACE_NAME string -- the name of the face for this font.
  • FONT string -- the X Window name of the font.
  • FONT_ASCENT integer -- the height above the baseline, for line spacing calculation.
  • FONT_DESCENT integer -- the descender below the baseline, for line spacing calculation.
  • FONT_VERSION string -- the version of the font.
  • FOUNDRY string
  • FAMILY_NAME string -- the font family name.
  • NOTICE string -- a general comment.
  • POINT_SIZE integer -- See Point (typography). If not separately specified, EMspace = round(POINT_SIZE/10), ENspace = round(POINT_SIZE/20), and THINspace = round(POINT_SIZE/30).
  • RESOLUTION_X positive
  • RESOLUTION_Y positive
  • SLANT string -- "R" is Roman, "I" is Italic, "O" is Oblique, "RI" is Reverse Italic, "RO" is Reverse Oblique, "OT" is Other and a number indicates polymorphic slant capability.
  • WEIGHT_NAME string -- the weight of this font ("Bold" and "Normal" are typical, though there is no set enumeration).
  • X_HEIGHT integer -- the height above the baseline of a lower-case 'x' (See x-height).

...where "integer" is a natural number, "positive" is a positive number (of value 1 or higher), and "string" is an ISO 8859-1 character string.

Read more about this topic:  Glyph Bitmap Distribution Format

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