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      <title>Show / Hide Poles</title>
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      <div class="title_topic1" id="xps10_pagetitle">Show / Hide Poles</div>
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               <p class="para_td">Overview</p>
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               <p class="para_td">How To</p>
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               <p class="para_td">Options</p>
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               <p class="para_td">Related Topics</p>
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      </table><br><p class="para_topic"> <img align="bottom" src="../graphic_library/icons/toolbars/analysis/analyze_shape/show_poles.gif" border="0">Show / Hide Poles displays the control polygon for selected B-curves (splines) or B-surfaces. A control polygon shows the pole locations and connecting polylines that define splines and B-surfaces. 
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      <ul>
         <li>
            <p class="para_item">Select Show Poles to display the control polygon for selected objects. </p>
         </li>
         <li>
            <p class="para_item">Select Hide Poles (or deselect the Show Poles option) to turn the display off. </p>
         </li>
      </ul>
      <p class="para_topic">When a control polygon is displayed, you can select its spline or B-surface by selecting the polygon.</p>
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         <p align="center"><img align="bottom" src="graphics/show_poles_bcurve.gif"></p>
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      <div class="title_figure">Control Polygon for a Selected Spline</div>
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         <p align="center"><img align="bottom" src="graphics/show_poles_bsurf.gif"></p>
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      <div class="title_figure">Control Polygon for a Selected B-Surface</div>
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                  <p class="para_note_body">&nbsp;Note that the Show Poles option is not effective for edges.</p>
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      <div class="title_division">Basic Procedure</div>
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         <li>
            <p class="para_item">Select any B-surface or B-curve.</p>
         </li>
         <li>
            <p class="para_item">Select Show Poles from the Analyze Shape toolbar.</p>
         </li>
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      <p class="para_division">You can also select the display of control polygons while creating or editing any feature that includes the output of a B-surface, such as Deform Sheet, Transform Sheet and Match Edge.</p>
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                  <p class="para_note_body">You can specify the colors of the control polygon on the Colors tab of Modeling Preferences.</p>
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      <div class="title_division">Where do I find it?</div>
      <p class="para_division">Analysis&rarr; Shape&rarr; Show Poles</p>
      <p class="para_division">Analyze Shape toolbar&rarr; Show / Hide Poles</p>
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