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      <title>Pattern and reflect</title>
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      <div class="title_topic3" id="xps10_pagetitle">Pattern and reflect</div>
      <hr noshade="true"><a name="ndxgenid_roadmap366"></a><a name="ndxgenid_roadmap367"></a><a name="ndxgenid_roadmap368"></a><a name="ndxgenid_roadmap369"></a><a name="ndxgenid_roadmap370"></a><p class="para_topic">The term &ldquo;array&rdquo; is used instead of &ldquo;pattern.&rdquo; Circular and rectangular array operations are created with the <b class="uiTerm">Instance</b> command.
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      <ul class="unmarkedList">
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            <p class="para_item"><img align="bottom" src="graphics/icons/icon_instance.gif" border="0"> <b class="uiTerm">Instance</b> 
            </p>
            <p class="para_item"><b class="uiTerm">Feature Operation</b> toolbar or 
            </p>
            <p class="para_item"><b class="uiTerm">Insert</b> &rarr; <b class="uiTerm">Associative Copy</b> &rarr; <b class="uiTerm">Instance</b></p>
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      <p class="para_topic">This command can create a rectangular or circular array.</p>
      <p align="center"><img align="bottom" src="graphics/parts/pattern1.gif"></p>
      <p class="para_topic">Arrays are stored in the history differently than patterns in I-deas. Each occurrence in an array is called an instance. Each instance is listed as a feature in the <b class="uiTerm">Part Navigator</b> and may be edited or suppressed independently.
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      <p class="para_topic">The rectangular array of holes in the picture above looks like this in the <b class="uiTerm">Part Navigator</b>:
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      <p align="center"><img align="bottom" src="graphics/parts/pattern_history.gif"></p>
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            <p class="para_item">Feature that was patterned</p>
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            <p class="para_item">Rectangular array</p>
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            <p class="para_item">Instances produced by the array</p>
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      <p class="para_topic">In NX, the term &ldquo;mirror&rdquo; is used instead of the I-deas term &ldquo;reflect.&rdquo; There are three related commands in NX, found in the menu <b class="uiTerm">Insert</b> &rarr; <b class="uiTerm">Associative Copy</b> and in the <b class="uiTerm">Feature Operation</b> toolbar.
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            <p class="para_item">Use <b class="uiTerm">Mirror Body</b> to reflect an entire body across a plane. This is similar to using the I-deas option to keep both sides of the reflect operation.
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            <p class="para_item">Use <b class="uiTerm">Mirror Feature</b> to reflect one or more features across a plane.
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            <p class="para_item">Use <b class="uiTerm">Instance Geometry</b> to create patterns or reflections directly from geometry.
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      <p class="para_topic">See also:</p>
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            <p class="para_item">Help: <img align="bottom" src="graphics/widgets/book_closed.gif" border="0"> Design &rarr; Modeling &rarr;  Modeling Menu Quick Reference &rarr; Modeling Insert Options  &rarr; Associative Copy
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