Basic 1D hypothesis specifies:
<ul>
<li>how \ref a1d_algos_anchor "Wire Discretization" should divide the edge;</li>
-<li>how \ref a1d_algos_anchor "Composite Side Discretization" should divide the group of C1-continues edges.</li>
+<li>how \ref a1d_algos_anchor "Composite Side Discretization" should divide the group of C1-continuous edges.</li>
</ul>
-By type of nodes distribution the 1D hypotheses can be categorized as follows:
+1D hypotheses can be categorized by type of nodes distribution as follows:
<ul>
-<li>Uniform distribution
+<li>Uniform distribution:
<ul>
<li>\ref average_length_anchor "Local Length"</li>
<li>\ref max_length_anchor "Max Size"</li>
<li>\ref number_of_segments_anchor "Number of segments" with Equidistant distribution</li>
<li>\ref automatic_length_anchor "Automatic Length"</li>
</ul></li>
-<li>Constantly increasing or decreasing length of segments
+<li>Constantly increasing or decreasing length of segments:
<ul>
<li>\ref arithmetic_1d_anchor "Arithmetic 1D"</li>
<li>\ref geometric_1d_anchor "Geometric Progression"</li>
<li>\ref start_and_end_length_anchor "Start and end length"</li>
<li>\ref number_of_segments_anchor "Number of segments" with Scale distribution</li>
</ul></li>
-<li>Distribution depending on curvature
+<li>Distribution depending on curvature:
<ul>
<li>\ref adaptive_1d_anchor "Adaptive"</li>
<li>\ref deflection_1d_anchor "Deflection 1D"</li>
</ul></li>
-<li>Arbitrary distribution
+<li>Arbitrary distribution:
<ul>
<li>\ref fixed_points_1d_anchor "Fixed points 1D"</li>
<li>\ref number_of_segments_anchor "Number of segments" with
selecting the edges or groups of edges in the Object Browser. Use \b
Add button to add the selected edges to the list.
+\ref reversed_edges_helper_anchor "Helper" group assists you in
+defining <b>Reversed Edges</b> parameter.
+
+
\image html a-arithmetic1d.png
\image html b-ithmetic1d.png "Arithmetic 1D hypothesis - the size of mesh elements gradually increases"
selecting the edges or groups of edges in the Object Browser. Use \b
Add button to add the selected edges to the list.
+\ref reversed_edges_helper_anchor "Helper" group assists you in
+defining <b>Reversed Edges</b> parameter.
+
\image html a-geometric1d.png
<b>See Also</b> a sample TUI Script of a
the selected type of distribution of nodes.
The direction of the splitting is defined by the orientation of the
-underlying geometrical edge. <b>"Reverse Edges"</b> list box allows to
+underlying geometrical edge. <b>Reverse Edges</b> list box allows to
specify the edges for which the splitting should be made in the
direction opposing to their orientation. This list box is enabled only
if the geometry object is selected for the meshing. In this case it is
in the 3D viewer or by selecting the edges or groups of edges in the
Object Browser.
-\image html image46.gif
+\ref reversed_edges_helper_anchor "Helper" group assists you in
+defining <b>Reversed Edges</b> parameter.
You can set the type of node distribution for this hypothesis in the
<b>Hypothesis Construction</b> dialog bog :
same way as for
\ref analyticdensity_anchor "Distribution with Analytic Density". You
can select the <b>Conversion mode</b> from\b Exponent and <b>Cut
-negative</b>.
+negative</b>.
\image html distributionwithtabledensity.png
\ref tui_deflection_1d "Defining Number of Segments" hypothesis
operation.
+\note The plot functionality is available only if GUI module is builded with Plot 2D Viewer (set option SALOME_USE_PLOT2DVIEWER to ON when building GUI module).
<br>
\anchor start_and_end_length_anchor
geometric progression.
The direction of the splitting is defined by the orientation of the
-underlying geometrical edge. <b>"Reverse Edges"</b> list box allows to
+underlying geometrical edge. <b>Reverse Edges</b> list box allows to
specify the edges, for which the splitting should be made in the
direction opposing to their orientation. This list box is enabled only
if the geometry object is selected for the meshing. In this case it is
in the 3D viewer or by selecting the edges or groups of edges in the
Object Browser.
+\ref reversed_edges_helper_anchor "Helper" group assists you in
+defining <b>Reversed Edges</b> parameter.
+
+
\image html a-startendlength.png
\image html b-art_end_length.png "The lengths of the first and the last segment are strictly defined"
set of points parametrized on the edge (from 1 to 0) and a number of
segments for each interval limited by the points.
-\image html hypo_fixedpnt_dlg.png
+\image html hypo_fixedpnt_dlg.png
It is possible to check in <b>Same Nb. Segments for all intervals</b>
option and to define one value for all intervals.
The splitting direction is defined by the orientation of the
-underlying geometrical edge. <b>"Reverse Edges"</b> list box allows to
+underlying geometrical edge. <b>Reverse Edges</b> list box allows to
specify the edges for which the splitting should be made in the
direction opposite to their orientation. This list box is enabled only
if the geometrical object is selected for meshing. In this case it is
the 3D viewer or selecting the edges or groups of edges in the
Object Browser.
+\ref reversed_edges_helper_anchor "Helper" group assists in
+defining <b>Reversed Edges</b> parameter.
+
+
\image html mesh_fixedpnt.png "Example of a sub-mesh on the edge built using Fixed points 1D hypothesis"
<b>See Also</b> a sample TUI Script of a
\ref tui_fixed_points "Defining Fixed Points" hypothesis operation.
+\anchor reversed_edges_helper_anchor
+<h2>Reversed Edges Helper</h2>
+
+\image html rev_edges_helper_dlg.png
+
+\b Helper group assists in defining <b>Reversed Edges</b>
+parameter of the hypotheses depending on edge direction.
+
+<b>Show whole geometry</b> check-box allows seeing the whole
+geometrical model in the 3D Viewer, which can help to understand the
+location of a set of edges within the model.
+
+<b>Propagation chains</b> group allows defining <b>Reversed Edges</b>
+for splitting opposite edges of quadrilateral faces
+in a logically uniform direction. When this group is
+activated, the list is filled with propagation chains found within the
+model. When a chain is selected in the list its edges are
+shown in the Viewer with arrows, which enables choosing a common
+direction for all chain edges. \b Reverse button inverts the common
+direction of chain edges. If \b Add button is active, some
+edges of a chain have a different direction, so you can click \b Add
+button to add them to <b>Reversed Edges</b> list.
+
+\image html propagation_chain.png "The whole geometry and a propagation chain"
+
*/
