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      <title>Overcrown by Surface</title>
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      <div class="title_topic3" id="xps10_pagetitle">Overcrown by Surface</div>
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      <p class="para_topic">The Overcrown By Surface method adjusts your sheet by measuring the deviation between a base surface and a control surface. With the base surface fixed, the control surface is manipulated to create the deviation. This deviation then defines the amount of normal offset to be applied to the associated sheet body at any given point. </p>
      <p class="para_topic">The base and control surface must be defined such that arbitrary points on the input sheet body may be projected normally to the base surface and produce a single solution. </p>
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            <th bgcolor="#c0c0c0" colspan="2" rowspan="1" valign="top"><a name="options_die_edit_face_ocrown_bysurf_dialog"></a><p class="para_th">Overcrown by Surface Dialog Options</p>
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               <p class="para_td">Selection Steps</p>
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               <p class="para_td">Base - Lets you specify the Base surface</p>
               <p class="para_td">Control - Lets you optionally specify a control surface. If no surface is selected, then a copy of the Base surface is used by default. </p>
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               <p class="para_td">Move Pole</p>
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               <p class="para_td">Invokes the Move Pole dialog, to let you adjust the control surface to create a deviation with the Base. This then propagates to the final sheet body. For help on the Move Pole dialog, please see the Modeling Help. </p>
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               <p class="para_td">Facet Display</p>
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               <p class="para_td">Turn this toggle switch on to show facets for the temporary display of the new sheet.</p>
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      </table><br><div class="title_division">Basic Procedure</div>
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            <p class="para_item">Select a Base surface. </p>
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            <p class="para_item">Optionally select a Control Surface. If no Control Surface is selected, then a copy of the Base Surface is used as default. </p>
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            <p class="para_item">Optionally adjust the Control Surface by manipulating the pole definition (if necessary, please see the Modeling Help for information on the Pole dialog). </p>
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            <p class="para_item">Choose OK or Apply to complete the Springback Compensation of the sheet body. </p>
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