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<HTML><HEAD><TITLE>Using Electric 8-1: Introduction to Technology Editing</TITLE></HEAD>
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<CENTER><H1><A NAME="chap08-01">Chapter 8: CREATING NEW ENVIRONMENTS</A></H1></CENTER>
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<TD><CENTER><H2>8-1: Introduction to Technology Editing</H2></CENTER></TD>
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Although there are many technology descriptions in Electric,
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there are many more in the world.
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there is the <I>technology editor</I> which allows you to modify existing technologies and create new ones.
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The editor works by converting a technology into a library of facets.
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You then edit the facets, using familiar Electric commands, and make changes to the technology.
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Finally, the technology editor translates the library back into a technology.
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Libraries which describe a technology are called <I>technology libraries</I>.
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They use elements from the Artwork technology to describe their information.
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Special commands from the <B>Technology</B> menu aid in the manipulation of these libraries.
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There are four types of facets in a technology library which describe the <I>layers</I>, <I>nodes</I>,
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<I>arcs</I>, and <I>miscellaneous-information</I>.
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The layer facets all begin with the name "layer-" and each one defines a layer in the technology.
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For example, the facet called "layer-Metal" defines the metal layer.
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The node and arc facets correspond to the primitives in the technology.
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Their names always begin with "node-" and "arc-".
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The miscellaneous information facet is always called "factors".
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Any other facet in the library is ignored.
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