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<head>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1">
<meta name="Author"
content="David Turner">
<title>FreeType Glyph Conventions</title>
</head>
<body text="#000000"
bgcolor="#FFFFFF"
link="#0000EF"
vlink="#51188E"
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<h1 align=center>
FreeType Glyph Conventions
</h1>
<h2 align=center>
Version 2.1
</h2>
<h3 align=center>
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>)
</h3>
<center>
<table width="70%">
<tr><td>
<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>
<table width="100%">
<tr valign=center
bgcolor="#CCCCFF">
<td align=center>
<h2>
Table of Contents
</h2>
</td>
</tr>
</table>
<center>
<table width="80%">
<tr><td>
<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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</table>
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