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| content="David Turner"> |
| <title>FreeType Glyph Conventions</title> |
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| FreeType Glyph Conventions |
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| Version 2.1 |
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| Copyright 1998-2000 David Turner (<a |
| href="mailto:david@freetype.org">david@freetype.org</a>)<br> |
| Copyright 2000 The FreeType Development Team (<a |
| href="mailto:devel@freetype.org">devel@freetype.org</a>) |
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| <p>This document presents the core conventions used within the FreeType |
| library to manage font and glyph data. It is a <em>must-read</em> for all |
| developers who need to understand digital typography, especially if you |
| want to use the FreeType 2 library in your projects.</p> |
| |
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| <h2> |
| Table of Contents |
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| <h2> |
| <a href="glyphs-1.html">I. Basic Typographic Concepts</a> |
| </h2> |
| <blockquote> |
| <h3> |
| <a href="glyphs-1.html#section-1">1. Font files, format and |
| information</a> |
| <br> |
| |
| <a href="glyphs-1.html#section-2">2. Character images and mappings</a> |
| <br> |
| |
| <a href="glyphs-1.html#section-3">3. Character and font metrics</a> |
| <br> |
| </h3> |
| </blockquote> |
| |
| <h2> |
| <a href="glyphs-2.html">II. Glyph outlines</a> |
| </h2> |
| <blockquote> |
| <h3> |
| <a href="glyphs-2.html#section-1">1. Pixels, points and device |
| resolutions</a> |
| <br> |
| |
| <a href="glyphs-2.html#section-2">2. Vectorial representation</a> |
| <br> |
| |
| <a href="glyphs-2.html#section-3">3. Hinting and bitmap rendering</a> |
| <br> |
| </h3> |
| </blockquote> |
| |
| <h2> |
| <a href="glyphs-3.html">III. Glyph metrics</a> |
| </h2> |
| <blockquote> |
| <h3> |
| <a href="glyphs-3.html#section-1">1. Baseline, pens and layouts</a> |
| <br> |
| |
| <a href="glyphs-3.html#section-2">2. Typographic metrics and |
| bounding boxes</a> |
| <br> |
| |
| <a href="glyphs-3.html#section-3">3. Bearings and advances</a> |
| <br> |
| |
| <a href="glyphs-3.html#section-4">4. The effects of grid-fitting</a> |
| <br> |
| |
| <a href="glyphs-3.html#section-5">5. Text widths and bounding box</a> |
| <br> |
| </h3> |
| </blockquote> |
| |
| <h2> |
| <a href="glyphs-4.html">IV. Kerning</a> |
| </h2> |
| <blockquote> |
| <h3> |
| <a href="glyphs-4.html#section-1">1. Kerning pairs</a> |
| <br> |
| |
| <a href="glyphs-4.html#section-2">2. Applying kerning</a> |
| <br> |
| </h3> |
| </blockquote> |
| |
| <h2> |
| <a href="glyphs-5.html">V. Text processing</a> |
| </h2> |
| <blockquote> |
| <h3> |
| <a href="glyphs-5.html#section-1">1. Writing simple text strings</a> |
| <br> |
| |
| <a href="glyphs-5.html#section-2">2. Sub-pixel positioning</a> |
| <br> |
| |
| <a href="glyphs-5.html#section-3">3. Simple kerning</a> |
| <br> |
| |
| <a href="glyphs-5.html#section-4">4. Right-to-left layouts</a> |
| <br> |
| |
| <a href="glyphs-5.html#section-5">5. Vertical layouts</a> |
| <br> |
| |
| <a href="glyphs-5.html#section-6">6. WYSIWYG text layouts</a> |
| <br> |
| </h3> |
| </blockquote> |
| |
| <h2> |
| <a href="glyphs-6.html">VI. FreeType Outlines</a> |
| </h2> |
| <blockquote> |
| <h3> |
| <a href="glyphs-6.html#section-1">1. FreeType outline description |
| and structure</a> |
| <br> |
| |
| <a href="glyphs-6.html#section-2">2. Bounding and control box |
| computations</a> |
| <br> |
| |
| <a href="glyphs-6.html#section-3">3. Coordinates, scaling, and |
| grid-fitting</a> |
| <br> |
| </h3> |
| </blockquote> |
| |
| <h2> |
| <a href="glyphs-7.html">VII. FreeType bitmaps</a> |
| </h2> |
| <blockquote> |
| <h3> |
| <a href="glyphs-7.html#section-1">1. Vectorial versus pixel |
| coordinates</a> |
| <br> |
| |
| <a href="glyphs-7.html#section-2">2. FreeType bitmap and pixmap |
| descriptor</a> |
| <br> |
| |
| <a href="glyphs-7.html#section-3">3. Converting outlines into |
| bitmaps and pixmaps</a> |
| <br> |
| </h3> |
| </blockquote> |
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