2004-12-01 15:48:31 +05:00
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<title>Extrusion</title>
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2005-11-28 14:57:47 +05:00
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2004-12-01 15:48:31 +05:00
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2004-12-01 15:48:31 +05:00
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2005-11-28 14:57:47 +05:00
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2004-12-01 15:48:31 +05:00
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2004-12-01 15:48:31 +05:00
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<h1>Extrusion</h1>
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<p>Extrusion is a type of surface meshing by generation from discretized
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lines. It is used to build mesh elements of plus one dimension than the
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swept ones. Each swept 1D element produces one or more quadrangles (or
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triangles if one node of a rotated element lays on the revolution axis).</p>
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<p> </p>
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<p class=TODO>To use extrusion:</p>
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<p class=TODO> </p>
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<p class="whs1">1. From the <span style="font-weight: bold;"><B>Modification
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</B></span>menu choose the <span style="font-weight: bold;"><B>Extrusion </B></span>item
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or click <img src="image91.gif" width="27px" height="24px" border="0" class="img_whs2"> button in the toolbar. The following dialog box
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2005-11-28 14:57:47 +05:00
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will appear:</p>
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2004-12-01 15:48:31 +05:00
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<p class="whs1"> </p>
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2005-11-28 14:57:47 +05:00
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<p class="whs1"><img src="pics/extrusionalongaline1.png" x-maintain-ratio="TRUE" width="411px" height="309px" border="0" class="img_whs3"> <img src="pics/extrusionalongaline2.png" x-maintain-ratio="TRUE" width="411px" height="309px" border="0" class="img_whs3"></p>
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<p class="whs1"> </p>
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<p class="whs1">2. In this dialog box you should select </p>
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<ul type="disc" class="whs4">
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<li class=kadov-p><p class="whs1">the type of elements
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which will be extruded (1D or 2D),</p></li>
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<li class=kadov-p><p class="whs1">specify the IDs of
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the elements which will be extruded by selecting them in the 3D viewer
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or select the whole mesh or submesh,</p></li>
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<li class=kadov-p><p class="whs1">specify the vector
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along which the elements will be extruded,</p></li>
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<li class=kadov-p><p class="whs1">number of steps</p></li>
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</ul>
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<p class="whs1"> </p>
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<p class="whs1">3. Click the <span style="font-weight: bold;"><B>Apply
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</B></span>or <span style="font-weight: bold;"><B>OK </B></span>button.</p>
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<p class=TODO
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style="margin-left: 40px;"> </p>
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<p> </p>
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<table x-use-null-cells cellspacing="0" width="100%" class="whs5">
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<col class="whs6">
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<col class="whs6">
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<tr valign="top" class="whs7">
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<td width="50%" class="whs8">
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<p><img src="image77.jpg" width="350px" height="201px" border="0" class="img_whs9"></td>
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<td width="50%" class="whs10">
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<p><img src="image76.jpg" width="350px" height="201px" border="0" class="img_whs9"></td></tr>
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</table>
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<p class=TODO> </p>
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2005-11-28 14:57:47 +05:00
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<p> <span style="font-weight: bold;"><B>See
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Also</B></span> a sample TUI Script of an <a href="modifying_meshes.htm#bookmark9">Extrusion</a>
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operation. </p>
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<p> </p>
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2004-12-01 15:48:31 +05:00
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