doc/salome/gui/SMESH/files/adding_nodes_and_elements.htm

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  93 <h1>Adding nodes and elements</h1>
  94
  95 <p>In MESH you can add to your mesh different elements such as:</p>
  96
  97 <p>&nbsp;</p>
  98
  99 <ul type="disc" class="whs1">
 100
 101         <li class=kadov-p><p class="whs2"><a href="#Adding_nodes">Nodes</a></p></li>
 102
 103         <li class=kadov-p><p class="whs2"><a href="#Adding_edges">Edges</a></p></li>
 104
 105         <li class=kadov-p><p class="whs2"><a href="#Adding_triangles">Triangles</a></p></li>
 106
 107         <li class=kadov-p><p class="whs2"><a href="#Adding_quadrangles">Quadrangles</a></p></li>
 108
 109         <li class=kadov-p><p class="whs2"><a href="#Adding_polygons">Polygons</a></p></li>
 110
 111         <li class=kadov-p><p class="whs2"><a href="#Adding_tetrahedrons">Tetrahedrons</a></p></li>
 112
 113         <li class=kadov-p><p class="whs2"><a href="#Adding_hexahedrons">Hexahedrons</a></p></li>
 114
 115         <li class=kadov-p><p class="whs2"><a href="#Adding_polyhedrons">Polyhedrons</a></p></li>
 116 </ul>
 117
 118 <p>&nbsp;</p>
 119
 120 <p class=TODO>To add a node or an element to your mesh:</p>
 121
 122 <p class=TODO>&nbsp;</p>
 123
 124 <p class="whs3">1. Select your mesh in the Object Browser
 125  or in the 3D viewer.</p>
 126
 127 <p class="whs3">&nbsp;</p>
 128
 129 <p class="whs3">2. From the <span style="font-weight: bold;"><B>Modification
 130  </B></span>menu choose the <span style="font-weight: bold;"><B>Add </B></span>item,
 131  the following associated submenu will appear:</p>
 132
 133 <p class="whs3">&nbsp;</p>
 134
 135 <p class="whs3"><img src="../image146.gif" width="155px" height="189px" border="0" class="img_whs4"></p>
 136
 137 <p class="whs3">&nbsp;</p>
 138
 139 <p class="whs3">From this submenu select the type of element
 140  which you would like to add to your mesh. </p>
 141
 142 <p class="whs3">&nbsp;</p>
 143
 144 <p>&nbsp;&nbsp;<span style="font-weight: bold;"><B>See
 145  Also</B></span> sample TUI Scripts of &nbsp;<a href="../modifying_meshes.htm#bookmark">Adding
 146  Nodes and Elements</a><a href="../modifying_meshes.htm#bookmark8"> </a>operations.
 147  &nbsp;</p>
 148
 149 <p>&nbsp;</p>
 150
 151 <h4><a name=Adding_nodes>Adding nodes</a></h4>
 152
 153 <p class="whs3"><img src="../pics/addnode.png" x-maintain-ratio="TRUE" width="332px" height="222px" border="0" class="img_whs5"> &nbsp;&nbsp;&nbsp;&nbsp;</p>
 154
 155 <p class="whs3">&nbsp;</p>
 156
 157 <p class="whs3">&nbsp;<img src="../pics/add_node.png" x-maintain-ratio="TRUE" width="257px" height="247px" border="0" class="img_whs6"></p>
 158
 159 <p class="whs3">&nbsp;</p>
 160
 161 <p class="whs3">In this dialog box set coordinates for your
 162  node in the <span style="font-weight: bold;"><B>Coordinates </B></span>set of
 163  fields and click the <span style="font-weight: bold;"><B>Apply </B></span>or
 164  <span style="font-weight: bold;"><B>OK </B></span>button. Your node will be created:</p>
 165
 166 <p class="whs3">&nbsp;</p>
 167
 168 <h4><a name=Adding_edges>Adding edges</a></h4>
 169
 170 <p>&nbsp;</p>
 171
 172 <p class="whs3"><img src="../pics/addedge.png" x-maintain-ratio="TRUE" width="332px" height="231px" border="0" class="img_whs7"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="../pics/add_edge.png" x-maintain-ratio="TRUE" width="260px" height="255px" border="0" class="img_whs8"></p>
 173
 174 <p class="whs3">&nbsp;</p>
 175
 176 <p class="whs3">In this dialog box specify the nodes which
 177  will form your edge by selecting them in the 3D viewer with pressed Shift
 178  button and click the <span style="font-weight: bold;"><B>Apply </B></span>or
 179  <span style="font-weight: bold;"><B>OK </B></span>button. Your edge will be created:</p>
 180
 181 <p class="whs3">&nbsp;</p>
 182
 183 <h4><a name=Adding_triangles>Adding triangles</a></h4>
 184
 185 <p class="whs3">&nbsp;</p>
 186
 187 <p class="whs3"><img src="../pics/addtriangle.png" x-maintain-ratio="TRUE" width="332px" height="257px" border="0" class="img_whs9"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="../pics/add_triangle.png" x-maintain-ratio="TRUE" width="275px" height="254px" border="0" class="img_whs10"></p>
 188
 189 <p class="whs3">&nbsp;</p>
 190
 191 <p class="whs3">In this dialog box specify the nodes which
 192  will form your triangle by selecting them in the 3D viewer with pressed
 193  Shift button and click the <span style="font-weight: bold;"><B>Apply </B></span>or
 194  <span style="font-weight: bold;"><B>OK </B></span>button. Your triangle will
 195  be created:</p>
 196
 197 <p class="whs3">&nbsp;</p>
 198
 199 <h4><a name=Adding_quadrangles>Adding quadrangles</a></h4>
 200
 201 <h4 class="whs11"><img src="../pics/addquadrangle.png" x-maintain-ratio="TRUE" width="332px" height="257px" border="0" class="img_whs9"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="../pics/add_quadrangle.png" x-maintain-ratio="TRUE" width="280px" height="258px" border="0" class="img_whs12"></h4>
 202
 203 <p class="whs3">In this dialog box specify the nodes which
 204  will form your quadrangle by selecting them in the 3D viewer with pressed
 205  Shift button and click the <span style="font-weight: bold;"><B>Apply </B></span>or
 206  <span style="font-weight: bold;"><B>OK </B></span>button. Your quadrangle will
 207  be created:</p>
 208
 209 <p class="whs3">&nbsp;</p>
 210
 211 <h4><a name=Adding_polygons>Adding polygons</a><a name=Adding_quadrangles1>
 212  </a></h4>
 213
 214 <h4 class="whs11"><img src="../pics/addpolygon.png" x-maintain-ratio="TRUE" width="332px" height="257px" border="0" class="img_whs9"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="../pics/add_polygone.png" x-maintain-ratio="TRUE" width="251px" height="258px" border="0" class="img_whs13"></h4>
 215
 216 <p class="whs3">In this dialog box specify the nodes which
 217  will form your polygon by selecting them in the 3D viewer with pressed
 218  Shift button and click the <span style="font-weight: bold;"><B>Apply </B></span>or
 219  <span style="font-weight: bold;"><B>OK </B></span>button. </p>
 220
 221 <p class="whs3">&nbsp;</p>
 222
 223 <h4><a name=Adding_tetrahedrons>Adding tetrahedrons</a></h4>
 224
 225 <p class="whs3"><img src="../pics/addtetrahedron.png" x-maintain-ratio="TRUE" width="332px" height="231px" border="0" class="img_whs7"></p>
 226
 227 <p class="whs3">&nbsp;</p>
 228
 229 <p class="whs3">In this dialog box specify the nodes which
 230  will form your tetrahedron by selecting them in the 3D viewer with pressed
 231  Shift button and click the <span style="font-weight: bold;"><B>Apply </B></span>or
 232  <span style="font-weight: bold;"><B>OK </B></span>button. Your tetrahedron will
 233  be created:</p>
 234
 235 <p class="whs3">&nbsp;</p>
 236
 237 <p class="whs3"><img src="../image70.jpg" width="350px" height="184px" border="0" class="img_whs14"></p>
 238
 239 <h4><a name=Adding_hexahedrons>Adding hexahedrons</a></h4>
 240
 241 <p class="whs3"><img src="../pics/addhexahedron.png" x-maintain-ratio="TRUE" width="332px" height="231px" border="0" class="img_whs7"></p>
 242
 243 <p class="whs3">&nbsp;</p>
 244
 245 <p class="whs3">In this dialog box specify the nodes which
 246  will form your hexahedron by selecting them in the 3D viewer with pressed
 247  Shift button and click the <span style="font-weight: bold;"><B>Apply </B></span>or
 248  <span style="font-weight: bold;"><B>OK </B></span>button. Your hexahedron will
 249  be created:</p>
 250
 251 <p class="whs3">&nbsp;</p>
 252
 253 <p class="whs3">&nbsp;</p>
 254
 255 <p class="whs3"><img src="../image71.jpg" width="350px" height="184px" border="0" class="img_whs14"></p>
 256
 257 <p class="whs3">&nbsp;</p>
 258
 259 <h4><a name=Adding_polyhedrons>Adding polyhedrons</a></h4>
 260
 261 <p class="whs3"><img src="../pics/a-createpolyhedralvolume.png" x-maintain-ratio="TRUE" width="332px" height="430px" border="0" class="img_whs15"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="../pics/add_polyhedron.png" x-maintain-ratio="TRUE" width="369px" height="360px" border="0" class="img_whs16"></p>
 262
 263 <p class="whs3">&nbsp;</p>
 264
 265 <p class="whs3">There are two different ways to add polyhedral
 266  volumes. </p>
 267
 268 <p class="whs3">If you select <span style="font-weight: bold;"><B>Node</B></span>
 269  as <span style="font-weight: bold;"><B>Elements Type</B></span> you will specify
 270  the nodes which will form the faces of your polyhedron by selecting the
 271  nodes in the 3D viewer with pressed Shift button and clicking the <span
 272  style="font-weight: bold;"><B>Add</B></span> button to add the face in the list
 273  of Faces by Nodes, which will form your polyhedron. Note, that it could
 274  be very useful to toggle Polyhedron Preview checkbox to see the results
 275  of your selection. </p>
 276
 277 <p class="whs3">The second way is somewhat simpler, however,
 278  there are cases when it does not provide you with the necessary level
 279  of precision. If you select <span style="font-weight: bold;"><B>Face</B></span>
 280  as <span style="font-weight: bold;"><B>Elements Type</B></span>, you will be
 281  able to select the faces &nbsp;which
 282  will form your polyhedron in the 3D viewer with pressed Shift button.
 283  If you've managed to </p>
 284
 285 <p class="whs3">obtain the necessary result, click the <span
 286  style="font-weight: bold;"><B>Apply </B></span>or <span style="font-weight: bold;"><B>OK
 287  </B></span><span style="margin-left: 40px;">button. Your hexahedron will be
 288  created.</span></p>
 289
 290 <p class="whs3">&nbsp;</p>
 291
 292 <p>&nbsp;</p>
 293
 294 <p class="whs3">&nbsp;</p>
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