\page constructing_submeshes_page Constructing sub-meshes
-Sub-mesh is a mesh on a geometrical sub-object created with algorithms
-and/or hypotheses other than the algorithms and hypotheses assigned to
-the parent mesh on the parent object.
-<br><br>
+Sub-mesh is a mesh on a geometrical sub-object (sub-shape) used to assign
+different meshing algorithms and/or hypotheses than the algorithms and
+hypotheses assigned to the parent mesh on the parent geometrical
+object, that allows getting a local mesh refinement.
+
+A sub-shape to create a sub-mesh on should be retrieved from the shape
+of the parent mesh in one of the following ways: <ul>
+<li> In Geometry module, via <em>New Entity > Explode</em> menu.</li>
+<li> In Geometry module, by creation of a group (<em>New Entity >
+ Group > Create Group</em> menu).</li>
+<li> In Mesh module, by
+ \ref subshape_by_mesh_elem "selecting a mesh element" generated on a
+ sub-shape of interest. This way is accessible if the mesh is
+ already computed.</li>
+</ul>
+
If a geometrical sub-object belongs to several geometrical objects
having different meshes or sub-meshes, it will be meshed with the
hypotheses of a sub-mesh of a lower dimension.<br>
will be used. This means that an edge shared by two faces each having
its own different sub-mesh, will be meshed using algorithms and
hypotheses of any of the two, chosen randomly. This indeterminacy can
- be fixed by defining \ref submesh_order_anchor "Sub-mesh priority".
+ be fixed by defining \ref submesh_order_anchor "Sub-mesh priority". The
+ default sub-meshes priority is such that multi-dimensional algorithms
+ are processed first.
<br>
\n Construction of a sub-mesh consists of:
\par
It allows to define the \b Name, the parent \b Mesh and the \b
Geometry (e.g. a face if the parent mesh has been built on box) of the
-sub-mesh. You can define algorithms and hypotheses in the same way as
+sub-mesh. You can select meshing algorithms and hypotheses in the same way as
in \ref constructing_meshes_page "Create mesh" menu.
\par
-If the parent mesh is already computed, then you can define
+\anchor subshape_by_mesh_elem
+If the parent mesh is already computed, then you can define the
\b Geometry by picking mesh elements computed on a sub-shape of interest
-in the 3D Viewer, i.e. you don't have to extract this sub-shape
-previously in Geometry module. To start element selection, press \a
+in the 3D Viewer, i.e. you do not have to extract this sub-shape
+in Geometry module beforehand. To start element selection, press \a
Selection button to the right of \b Geometry label. If this button is
already down, then click it to release and then click it again. The
-following pop-up menu to choose a way of geometry definition will
+following pop-up menu allowing to choose a way of geometry definition will
appear.
\par
\image html choose_geom_selection_way.png
\par
-There the first item enables selecting the sub-shape in the Object
-Browser, the second one makes appear the following dialog.
+<b>Direct geometry selection</b> enables selecting the sub-shape in the Object
+Browser.
+<b>Find geometry by mesh element selection</b> activates the following dialog.
\par
\image html find_geom_by_mesh_elem.png
\par
-In this dialog, <b> Element Type </b> defines kind of element to pick in the
-Viewer. Instead of picking an element in the Viewer, you can type its
-ID in <b> Element ID</b> field. <b> Geometry name </b> allow you
-define a name of the sub-shape with which it will be published in the Study.
-
+In this dialog, <b> Element Type </b> defines a kind of element to pick in the
+Viewer.
+Instead of picking an element in the Viewer, you can type its
+ID in <b> Element ID</b> field.
+<b> Geometry name </b> field allows defining a name of the sub-shape,
+with which the sub-shape will appear in the Object Browser (if not yet
+there).
\par
In the Object Browser the structure of the new sub-mesh will be
\par
It contains:
<ul>
-<li>a reference to the geometrical object on the basis of which the sub-mesh has been constructed;</li>
+<li>a sub-mesh name (\a SubMeshFace1)
+<li>a reference to the geometrical object on the basis of which the
+ sub-mesh has been constructed (<em>Cylindrical Face_1</em>);</li>
<li><b>Applied hypotheses</b> folder containing the references to the
-hypotheses applied to the construction of the sub-mesh;</li>
+hypotheses selected at the construction of the sub-mesh;</li>
<li><b>Applied algorithms</b> folder containing the references to the
-algorithms applied to the construction of the sub-mesh.</li>
+algorithms selected at the construction of the sub-mesh.</li>
</ul>
<br><b>See Also</b> a sample TUI Script of a
