Figure 2.10 shows examples of various text attributes such as the justification and the text escapes. Text Drawing Commands and Attributes. Most attributes of plotted text are changed using escape sequences within the text itself. Pairs of italics or proportional spacing escapes thus effectively toggle. Figure 2.11 shows all of the characters available in any text using embedded escapes with igi fonts.
Roman is the default font and the drawn character matches the typed characters.
In other fonts, the drawn character may be different from that typed. The small character in the upper right corner of each character cell shows the letter to type to have the symbol appear. Roman, Greek, and Script are proportional-spaced fonts. Text Escape Codes. Some graphics devices are able to display grayscale images.