smesh/doc/salome/gui/SMESH/files/about_hypotheses.htm
2004-04-05 07:13:18 +00:00

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<title>About hypotheses</title>
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<h1>About hypotheses</h1>
<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
boundary conditions which will be taken into account at calculations of
meshes or submeshes basing on geometrical objects. These hypotheses allow
you to manage the level of detail of the resulting meshes or submeshes:
when applying different hypotheses with different parameters you can preset
the quantity of meshing elements which will compose your mesh. So, it
will be possible to generate a rough or a more refined mesh or submesh.
In <span style="font-weight: bold;"><B>SMESH </B></span>there are the following
basic hypotheses:</p>
<p>&nbsp;</p>
<ul type="disc" class="whs2">
<li style="list-style: circle;"
type=circle
class=kadov-p><p>For meshing of <span style="font-weight: bold;"><B>edges</B></span>:</p></li>
<ul type="disc" class="whs2">
<li class=kadov-p><p><a href="local_length_hypothesis.htm">Local
Length</a> </p></li>
<li class=kadov-p><p><a href="number_of_segments_hypothesis.htm">Number
of segments</a></p></li>
</ul>
<li style="list-style: circle;"
type=circle
class=kadov-p><p>For meshing of <span style="font-weight: bold;"><B>faces</B></span>:
</p></li>
</ul>
<ol type="disc" class="whs3">
<ul type="disc" class="whs2">
<li class=kadov-p><p><a href="max._element_area_hypothesis.htm">Max
Element Area</a></p></li>
</ul>
</ol>
<ul type="disc" class="whs2">
<li style="list-style: circle;"
type=circle
class=kadov-p><p>For meshing of <span style="font-weight: bold;"><B>volumes</B></span>:
</p></li>
<ul type="disc" class="whs2">
<li class=kadov-p><p><a href="max._element_volume_hypothsis.htm">Max
Element Volume</a> &nbsp;</p></li>
</ul>
</ul>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>The choice of a hypothesis depends on:</p>
<p>&nbsp;</p>
<ul type="disc" class="whs2">
<li class=kadov-p><p>the geometrical object (shape) which will be meshed</p></li>
<li class=kadov-p><p>the algorithm, which will be selected for meshing
of this geometrical object (shape)</p></li>
</ul>
<p>&nbsp;</p>
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