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0020427: EDF 868 SMESH : Be able to define the submeshing order

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ptv 2009-09-29 08:04:30 +00:00
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doc/salome/gui/SMESH/input/constructing_meshes.doc
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@ -152,10 +152,88 @@ evaluation will be displayed in the following information box:
\image html mesh_evaluation_succeed.png
</li>
</ol>
It is allowed to change submesh priority in mesh computation when
there are concurrent submeshes present. I.e. user can change priority of
applying algorithms on shared subshapes of Mesh shape.
<em>To change submesh priority:</em>
<ol>
<li>From the Mesh menu choose the "Change submesh priority" on
selected Mesh item, or invoke from popup menu.
There are example of submesh order modifications of Mesh created on a Box
shape. The main Mesh object:
<ul>
<li><i>3D</i> <b>Tetrahedron (Netgen)</b> with Hypothesis<b>Max Element Volume</b></li>
<li><i>2D</i> <b>Triangle (Mefisto)</b> with Hypothesis<b>Max Element Area</b>
</li>
<li><i>1D</i> <b>Wire discretisation</b> with <b>Number of Segments</b>=20</li>
</ul>
The first submesh object "<b>Submesh_1</b>" created on "<b>Face_1</b>"
is:
<ul>
<li><i>2D</i> Netgen 1D-2D with Hypothesis <b>Netgen Simple parameters</b>
(Number of Segments = 4)</li>
</ul>
The second submesh object "<b>Submesh_2</b>" created on "<b>Face_2</b>"
is:
<ul>
<li><i>2D</i> Netgen 1D-2D with Hypothesis <b>Netgen Simple parameters</b>
(Number of Segments = 8)</li>
</ul>
And the last third submesh object "<b>Submesh_3</b>" created on "<b>Face_3</b>"
is:
<ul>
<li><i>2D</i> Netgen 1D-2D with Hypothesis <b>Netgen Simple parameters</b>
(Number of Segments = 12)</li>
</ul>
The submeshes can become concurrent if thir algorithms leads to mesh shared subshape
with different algorithms (or different algorithms parameters, i.e. hypothesises).
In fact, we have three submeshes with concurrent algorithms, becase
they has different hypothesises assigned to them.
The first mesh computation made with:
\image html mesh_order_123.png
<center><em>"Mesh order SubMesh_1, SubMesh_2, SubMesh_3"</em></center>
\image html mesh_order_123_res.png
<center><em>"Result mesh with order SubMesh_1, SubMesh_2, SubMesh_3 "</em></center>
The next mesh computation with:
\image html mesh_order_213.png
<center><em>"Mesh order SubMesh_2, SubMesh_1, SubMesh_3"</em></center>
\image html mesh_order_213_res.png
<center><em>"Result mesh with order SubMesh_2, SubMesh_1, SubMesh_3 "</em></center>
And the last mesh computation with:
\image html mesh_order_321.png
<center><em>"Mesh order SubMesh_3, SubMesh_2, SubMesh_1"</em></center>
\image html mesh_order_321_res.png
<center><em>"Result mesh with order SubMesh_3, SubMesh_2, SubMesh_1 "</em></center>
As we can see each mesh computation has different number of result
elements and different mesh descretisation on shared edges (edges,
that shared between <b>Face_1</b>, <b>Face_2</b> and <b>Face_3</b>)
Additionally, submesh priority (order of algorithms to be applied) can
be modified not only in separate dialog box, but in <b>Preview</b>
also. This helps to preview different mesh results, modifying submesh
order.
\image html mesh_order_preview.png
<center><em>"Preview with submesh priority list box"</em></center>
If no concurrent submeshes under Mesh object user will see the
following information dialog box
\image html mesh_order_no_concurrent.png
<center><em>"No concurrent submeshes detected"</em></center>
and no mesh order list box appear in Preview dialog box.
</ol>
Consider trying a sample script for construction of a mesh from our
\ref tui_creating_meshes_page "TUI Scripts" section.
</li>
</ol>
*/