doc/salome/gui/SMESH/extrusion.htm

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  87 <h1><img src="image91.gif" width="27px" height="24px" border="0" class="img_whs1">Extrusion</h1>\r
  88 \r
  89 <p>Extrusion is a type of surface meshing by generation from discretized \r
  90  lines. It is used to build mesh elements of plus one dimension than the \r
  91  swept ones. Each swept 1D element produces one or more quadrangles (or \r
  92  triangles if one node of a rotated element lays on the revolution axis).</p>\r
  93 \r
  94 <p>&nbsp;</p>\r
  95 \r
  96 <p class=TODO>To use extrusion:</p>\r
  97 \r
  98 <p class=TODO>&nbsp;</p>\r
  99 \r
 100 <p class="whs2">1. From the <span style="font-weight: bold;"><B>Modification \r
 101  </B></span>menu choose the <span style="font-weight: bold;"><B>Extrusion </B></span>item \r
 102  or click <img src="image91.gif" width="27px" height="24px" border="0" class="img_whs1"> button in the toolbar. The following dialog box \r
 103  will appear:</p>\r
 104 \r
 105 <p class="whs2">&nbsp;</p>\r
 106 \r
 107 <p class="whs2">&nbsp;<img src="pics/extrusionalongaline1.png" x-maintain-ratio="TRUE" width="415px" height="335px" border="0" class="img_whs3"> <img src="pics/extrusionalongaline2.png" x-maintain-ratio="TRUE" width="415px" height="335px" border="0" class="img_whs3"></p>\r
 108 \r
 109 <p class="whs2">&nbsp;</p>\r
 110 \r
 111 <p class="whs2">2. In this dialog box you should select </p>\r
 112 \r
 113 <ul type="disc" class="whs4">\r
 114         \r
 115         <li class=kadov-p><p class="whs2">the type of elements \r
 116  which will be extruded (1D or 2D),</p></li>\r
 117         \r
 118         <li class=kadov-p><p class="whs2">specify the IDs of \r
 119  the elements which will be extruded by selecting them in the 3D viewer \r
 120  or select the whole mesh or submesh,</p></li>\r
 121         \r
 122         <li class=kadov-p><p class="whs2">specify the vector \r
 123  along which the elements will be extruded,</p></li>\r
 124         \r
 125         <li class=kadov-p><p class="whs2">number of steps</p></li>\r
 126 </ul>\r
 127 \r
 128 <p class="whs2"><span style="font-weight: bold;"><B>Generate \r
 129  Groups</B></span> checkbox allows copying the groups of elements of the source \r
 130  mesh to the newly created one.</p>\r
 131 \r
 132 <p class="whs2">&nbsp;</p>\r
 133 \r
 134 <p class="whs2">3. Click the <span style="font-weight: bold;"><B>Apply \r
 135  </B></span>or <span style="font-weight: bold;"><B>OK </B></span>button.</p>\r
 136 \r
 137 <p class=TODO\r
 138         style="margin-left: 40px;">&nbsp;</p>\r
 139 \r
 140 <p>&nbsp;</p>\r
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 150 <p><img src="image76.jpg" width="350px" height="201px" border="0" class="img_whs9"></td></tr>\r
 151 </table>\r
 152 \r
 153 <p class=TODO>&nbsp;</p>\r
 154 \r
 155 <p>&nbsp;<span style="font-weight: bold;"><B>See \r
 156  Also</B></span> a sample TUI Script of an <a href="modifying_meshes.htm#bookmark9">Extrusion</a> \r
 157  operation. &nbsp;</p>\r
 158 \r
 159 <p>&nbsp;</p>\r
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