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4/23 Fonts: Bitmap & Outline

4/23 Fonts: Bitmap & Outline. Roll call Video: Outline Fonts Lecture: bitmap fonts outline fonts. Fonts: General. Fonts are sets of stylized letters. They matter only to the monitor, printer, and people.

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4/23 Fonts: Bitmap & Outline

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  1. 4/23 Fonts: Bitmap & Outline • Roll call • Video: Outline Fonts • Lecture: • bitmap fonts • outline fonts

  2. Fonts: General • Fonts are sets of stylized letters. • They matter only to the monitor, printer, and people. • Inside the computer, the letters are just ASCII code, not a particular shape or style.

  3. Bitmapped vs. Outline Fonts • Bitmapped fonts come in specific sizes. They are actually dot-matrix layouts of letters. • Outline fonts are geometric designs for how a letter looks.

  4. Bitmapped Fonts: A Pro & A Con • Pro: • faster to process than outline fonts • Con: • lack flexibility: limited to “stepped” sizes McGwire image courtesy of http://www.geocities.com/Colosseum/Sideline/5121/macpics.htm Prisoner image courtesy of http://www.eyewire.com

  5. Bitmapped Fonts: Simplicity! • The computer sends ASCII code to the printer. • The printer uses the information in its ROM to print the corresponding bitmap on the page. 41h = A

  6. Outline Fonts • Outline fonts consist of mathematical descriptions of each character, called algorithms. • Other algorithms are used for alterations to a letter: bold, italic, etc.

  7. Outline Fonts • Some typefaces include hints, special instructions for certain situations, such as really, really tiny printing, etc.

  8. Outline Fonts • The font is a description of the outline only. The software sets the area inside to black (or red, or striped, or…).

  9. Outline Fonts: Pros & A Con • Pros: The flexibility is vast with outline fonts, and the quality of the printed letters is often better. • Con: Much slower than bitmapped fonts when printing: the entire page is treated as a graphic.

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