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      <title>Adding features</title>
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      <div class="title_topic2" id="xps10_pagetitle">Adding features</div>
      <hr noshade="true"><a name="ndxgenid_roadmap322"></a><p class="para_topic"><img align="bottom" src="graphics/commandref/ideas_rule.gif" border="0"></p>
      <p class="para_topic">In I-deas, part modeling is a process of adding features. Most features begin with a sketch.</p>
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      <p class="para_topic">In NX, as in I-deas, part modeling is a process of adding features.</p>
      <p class="para_topic">Feature types include:</p>
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            <p class="para_item"><a class="links" href="javascript:void(0)" onclick="top.openFile('roadmap/05qt_parts_21.html');return(false);">Datum features</a> are comparable to I-deas reference planes and axes.
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            <p class="para_item"><img align="bottom" src="graphics/icons/datum_features.gif" border="0"></p>
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            <p class="para_item"><a class="links" href="javascript:void(0)" onclick="top.openFile('roadmap/05qt_parts_22.html');return(false);">Form features</a> create standard geometric features such as holes and slots without requiring a sketch. These feature types are not included in I-deas.
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            <p class="para_item"><img align="bottom" src="graphics/icons/formfeaturesicons.gif" border="0"> 
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            <p class="para_item">Sketch-based features such as <b class="uiTerm"><a class="links" href="javascript:void(0)" onclick="top.openFile('roadmap/05qt_parts_26.html');return(false);">Extrude</a></b>, <b class="uiTerm"><a class="links" href="javascript:void(0)" onclick="top.openFile('roadmap/05qt_parts_27.html');return(false);">Revolve</a></b>, <b class="uiTerm"><a class="links" href="javascript:void(0)" onclick="top.openFile('roadmap/05qt_parts_28.html');return(false);">Swept</a></b>, and <b class="uiTerm"><a class="links" href="javascript:void(0)" onclick="top.openFile('roadmap/05qt_parts_28.html');return(false);">Variational Sweep</a></b> use sketches similar to I-deas.
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            <p class="para_item"><img align="bottom" src="graphics/icons/swept_features_icons.gif" border="0"></p>
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            <p class="para_item"><a class="links" href="javascript:void(0)" onclick="top.openFile('roadmap/05qt_parts_29.html');return(false);">Feature operations</a>, such as a chamfers, are features that operate on existing geometry.
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            <p class="para_item"><img align="bottom" src="graphics/icons/feature-operations.gif" border="0"></p>
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