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<!doctype html public "-//w3c//dtd html 4.0 transitional//en" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><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" alink="#FF0000"><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> </td></tr> </table> </center></td></tr></table></center></body></html>⌨️ 快捷键说明
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