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      <title>SNORM</title>
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      <div class="title_refTopic" id="xps10_pagetitle">SNORM</div>
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      <h4 class="refClassification">Surface Normal Vector at Grid Point </h4>
      <p class="para_refTopic">Defines a surface normal vector at a grid point for CQUAD4, CQUADR, CTRIA3, and CTRIAR shell elements. </p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
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                     <p class="para_th">1 </p>
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                     <p class="para_th">2 </p>
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                     <p class="para_th">3 </p>
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                     <p class="para_th">4 </p>
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                     <p class="para_th">5 </p>
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                     <p class="para_th">6 </p>
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                     <p class="para_th">7 </p>
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                     <p class="para_th">8 </p>
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                     <p class="para_th">9 </p>
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                     <p class="para_th">10 </p>
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                     <p class="para_td">SNORM </p>
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                     <p class="para_td">GID </p>
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                     <p class="para_td">CID </p>
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                     <p class="para_td">N1 </p>
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                     <p class="para_td">N2 </p>
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                     <p class="para_td">N3 </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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      <div class="title_refCategory">Example: </div>
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                     <p class="para_td">SNORM </p>
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                     <p class="para_td">3 </p>
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                     <p class="para_td">2 </p>
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                     <p class="para_td">0. </p>
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                     <p class="para_td">-1. </p>
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                     <p class="para_td">0. </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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      <div class="title_refCategory">Fields:</div>
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                     <p class="para_th"><b class="uiTerm">Field </b></p>
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                     <p class="para_th"><b class="uiTerm">Contents </b></p>
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                     <p class="para_td">GID </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Unique grid point identification number.  (Integer &gt; 0) </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">CID </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Identification number of coordinate system in which the components of the normal vector are defined. See Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/19topic_65.html#ref70696');return(false);">89-3. </a> (Integer &ge; 0; Default=0 for the basic coordinate system) 
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                     <p class="para_td">Ni </p>
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                     <p class="para_td">Components of normal vector. The three components of the normal need not define a unit vector.  (Real; Default=0.0) </p>
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      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
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            <li>
               <p class="para_item">The SNORM Bulk Data entry overrides any unique, internally-generated grid point normals that may have been requested with the user parameter SNORM , described in this guide. </p>
            </li>
            <li>
               <p class="para_item">The normal is used in CQUAD4, CQUADR, CTRIA3, and CTRIAR shell elements.  For all other elements, the normal is ignored. </p>
            </li>
            <li><a name="ref70696"></a><p class="para_item">If CID is a cylindrical or spherical coordinate system, the components Ni are in the local tangent system at grid GID. For example, if CID=10 is a spherical coordinate system and normals must be defined pointing outwards in the radial direction of the sphere, see <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/19topic_65.html#ref14870');return(false);">Figure 18-</a>, then the SNORM entries for all grids GID on the sphere are simply 
               </p>
               <p class="para_item">SNORM, GID, 10, 1., 0., 0. </p><a name="ref14870"></a><div class="figure">
                  <p align="center"><img align="bottom" src="graphics/bulkqrs-fig06.gif"></p>
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               <div class="title_figure">Figure. </div>
            </li>
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