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Node: <a name="Symbol%20Objects">Symbol Objects</a>,
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Next: <a rel="next" accesskey="n" href="Via-Objects.html#Via%20Objects">Via Objects</a>,
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Up: <a rel="up" accesskey="u" href="Intro.html#Intro">Intro</a>
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<h3 class="section">Symbols</h3>
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<p>The top object is the layout itself. It uses a set of symbols
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that resides at the first logical level. Each symbol is uniquely identified
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by a seven bit <code>ASCII</code> code. All layout objects share the same set of
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symbols. These symbols are used to form text objects on the silkscreen
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and copper layers. Undefined symbols are drawn as filled rectangles.
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<p>Every font file is preprocessed by a user-defined command when it is loaded.
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For details see <code>fontCommand</code>, <a href="Resources.html#Resources">Resources</a>.