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

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   6 <title>About hypotheses</title>\r
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  91 <h1>About hypotheses</h1>\r
  92 \r
  93 <p><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> <span style="font-weight: bold;"><B>Hypotheses</B></span> represent \r
  94  boundary conditions which will be taken into account at calculations of \r
  95  meshes or submeshes basing on geometrical objects. These hypotheses allow \r
  96  you to manage the level of detail of the resulting meshes or submeshes: \r
  97  when applying different hypotheses with different parameters you can preset \r
  98  the quantity of meshing elements which will compose your mesh. So, it \r
  99  will be possible to generate a rough or a more refined mesh or submesh. \r
 100  In <span style="font-weight: bold;"><B>MESH </B></span>there are the following \r
 101  basic hypotheses:</p>\r
 102 \r
 103 <p>&nbsp;</p>\r
 104 \r
 105 <ul type="disc" class="whs2">\r
 106         \r
 107         <li style="list-style: circle; /*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 108                 type=circle\r
 109                 class=kadov-p><p class="whs3">For \r
 110  meshing of <span style="font-weight: bold;"><B>edges</B></span>:</p></li>\r
 111         \r
 112         <ul type="disc" class="whs2">\r
 113                 \r
 114                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 115                         class=kadov-p><p class="whs3"><a href="arithmetic_1d.htm">Arithmetic 1D</a></p></li>\r
 116                 \r
 117                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 118                         class=kadov-p><p class="whs3"><a href="local_length_hypothesis.htm">Average Length</a></p></li>\r
 119                 \r
 120                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 121                         class=kadov-p><p class="whs3"><a href="../deflection_id_hypothesis.htm">Deflection 1D</a> </p></li>\r
 122                 \r
 123                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 124                         class=kadov-p><p class="whs3"><a href="number_of_segments_hypothesis.htm">Number of segments</a></p></li>\r
 125                 \r
 126                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 127                         class=kadov-p><p class="whs3"><a href="propagation_of_1d_hypothesis_on_opposite_edges.htm">Propagation \r
 128  of 1D Hypothesis on opposite edges</a></p></li>\r
 129                 \r
 130                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 131                         class=kadov-p><p class="whs3"><a href="start_and_end_length_hypothesis.htm">Start and end length</a></p></li>\r
 132         </ul>\r
 133         \r
 134         <li style="list-style: circle; /*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 135                 type=circle\r
 136                 class=kadov-p><p class="whs3">For \r
 137  meshing of <span style="font-weight: bold;"><B>faces</B></span>: </p></li>\r
 138 </ul>\r
 139 \r
 140 <ul type="disc" class="whs2">\r
 141         \r
 142         <ul type="disc" class="whs2">\r
 143                 \r
 144                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 145                         class=kadov-p><p class="whs3"><a href="length_from_edges.htm">Length from edges</a></p></li>\r
 146                 \r
 147                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 148                         class=kadov-p><p class="whs3"><a href="max._element_area_hypothesis.htm">Max Element Area</a></p></li>\r
 149                 \r
 150                 <li style="/*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 151                         class=kadov-p><p class="whs3"><a href="non_conform_mesh_allowed_hypothesis.htm">Non conform mesh allowed</a></p></li>\r
 152         </ul>\r
 153 </ul>\r
 154 \r
 155 <ul type="disc" class="whs2">\r
 156         \r
 157         <li style="list-style: circle; /*begin!kadov{{*/ color: #000000; /*}}end!kadov*/ "\r
 158                 type=circle\r
 159                 class=kadov-p><p class="whs3">For \r
 160  meshing of <span style="font-weight: bold;"><B>volumes</B></span>: </p></li>\r
 161         \r
 162         <ul type="disc" class="whs2">\r
 163                 \r
 164                 <li class=kadov-p><p><a href="max._element_volume_hypothsis.htm">Max \r
 165  Element Volume</a> &nbsp;</p></li>\r
 166         </ul>\r
 167 </ul>\r
 168 \r
 169 <p>&nbsp;</p>\r
 170 \r
 171 <p>&nbsp;</p>\r
 172 \r
 173 <p>The choice of a hypothesis depends on:</p>\r
 174 \r
 175 <p>&nbsp;</p>\r
 176 \r
 177 <ul type="disc" class="whs2">\r
 178         \r
 179         <li class=kadov-p><p>the geometrical object (shape) which will be meshed</p></li>\r
 180         \r
 181         <li class=kadov-p><p>the algorithm, which will be selected for meshing \r
 182  of this geometrical object (shape)</p></li>\r
 183 </ul>\r
 184 \r
 185 <p>&nbsp;</p>\r
 186 \r
 187 <p class="whs4"><a name=CreateHyp></a>To \r
 188  create a hypothesis </p>\r
 189 \r
 190 <p><span style="font-size: 12pt;"><font size=3 style="font-size:12pt;">In the main menu select</font></span><span style="font-style: italic;\r
 191         font-size: 12pt;\r
 192         font-family: 'Arial Black', sans-serif;"> <font size=3 style="font-size:12pt;"><I></I></font></span><span style="font-weight: bold;"><B>Hypotheses \r
 193  &gt; </B></span><img src="../image7.gif" width="22px" height="22px" border="0" class="img_whs5"> <span style="font-weight: bold;"><B>Create hypotheses</B></span></p>\r
 194 \r
 195 <p>The following menu will appear:</p>\r
 196 \r
 197 <p>&nbsp;</p>\r
 198 \r
 199 <p class="whs6"><img src="../image21.jpg" width="448px" height="367px" border="0" class="img_whs7"></p>\r
 200 \r
 201 <p>&nbsp;</p>\r
 202 \r
 203 <p>Select one of the menu items and click <span style="font-weight: bold;"><B>Create</B></span>. \r
 204  A data input dialog box corresponding to the chosen type of the hypotheses \r
 205  will appear. The created hypotheses shall appear in the Object Browser \r
 206  under the <span style="font-weight: bold;"><B>Hypotheses </B></span>folder:</p>\r
 207 \r
 208 <p>&nbsp;</p>\r
 209 \r
 210 <p>&nbsp;</p>\r
 211 \r
 212 <p class="whs6"><img src="../image42.jpg" width="271px" height="124px" border="0" class="img_whs8"></p>\r
 213 \r
 214 <p>&nbsp;</p>\r
 215 \r
 216 <p>&nbsp;</p>\r
 217 \r
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