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6 <title>Extrusion</title>\r
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86 </script>\r
87 <h1>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="whs1">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_whs2"> button in the toolbar. The following dialog box \r
103  will appear:</p>\r
104 \r
105 <p class="whs1">&nbsp;</p>\r
106 \r
107 <p class="whs1"><img src="pics/extrusionalongaline1.png" x-maintain-ratio="TRUE" width="411px" height="309px" border="0" class="img_whs3"> &nbsp;<img src="pics/extrusionalongaline2.png" x-maintain-ratio="TRUE" width="411px" height="309px" border="0" class="img_whs3"></p>\r
108 \r
109 <p class="whs1">&nbsp;</p>\r
110 \r
111 <p class="whs1">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="whs1">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="whs1">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="whs1">specify the vector \r
123  along which the elements will be extruded,</p></li>\r
124         \r
125         <li class=kadov-p><p class="whs1">number of steps</p></li>\r
126 </ul>\r
127 \r
128 <p class="whs1">&nbsp;</p>\r
129 \r
130 <p class="whs1">3. Click the <span style="font-weight: bold;"><B>Apply \r
131  </B></span>or <span style="font-weight: bold;"><B>OK </B></span>button.</p>\r
132 \r
133 <p class=TODO\r
134         style="margin-left: 40px;">&nbsp;</p>\r
135 \r
136 <p>&nbsp;</p>\r
137 \r
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144 <p><img src="image77.jpg" width="350px" height="201px" border="0" class="img_whs9"></td>\r
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146 <p><img src="image76.jpg" width="350px" height="201px" border="0" class="img_whs9"></td></tr>\r
147 </table>\r
148 \r
149 <p class=TODO>&nbsp;</p>\r
150 \r
151 <p>&nbsp;<span style="font-weight: bold;"><B>See \r
152  Also</B></span> a sample TUI Script of an <a href="modifying_meshes.htm#bookmark9">Extrusion</a> \r
153  operation. &nbsp;</p>\r
154 \r
155 <p>&nbsp;</p>\r
156 \r
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