<li>\ref number_of_segments_anchor "Number of segments"</li>
<li>\ref start_and_end_length_anchor "Start and end length"</li>
<li>\ref automatic_length_anchor "Automatic Length"</li>
+<li>\ref fixed_points_1d_anchor "Fixed points 1D"</li>
</ul>
<br>
length that changes in arithmetic progression (Lk = Lk-1 + d)
beginning from a given starting length and up to a given end length.
+The direction of the splitting is defined by the orientation of the 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 the user can select edges to be reversed either directly
+picking them in the 3D viewer or by selecting the edges or groups of edges in the Object browser.
+
\image html a-arithmetic1d.png
\image html b-ithmetic1d.png "Arithmetic 1D hypothesis - the size of mesh elements gradually increases"
mesh. Later these nodes will be used for meshing of the faces abutting
to these edges.
+The direction of the splitting is defined by the orientation of the 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 the user can select edges to be reversed either directly
+picking them in the 3D viewer or by selecting the edges or groups of edges in the Object browser.
+
\image html image46.gif
You can set the type of distribution for this hypothesis in the
constructed at segment ends location and 1D mesh elements are
constructed on them.
+The direction of the splitting is defined by the orientation of the 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 the user can select edges to be reversed either directly
+picking them in the 3D viewer or by selecting the edges or groups of edges in the Object browser.
+
\image html a-startendlength.png
\image html b-art_end_length.png "The lengths of the first and the last segment are strictly defined"
\image html image147.gif "Example of a very rough mesh. Automatic Length works for 0."
\image html image148.gif "Example of a very fine mesh. Automatic Length works for 1."
+
+<br>
+\anchor fixed_points_1d_anchor
+<h2>Fixed points 1D hypothesis</h2>
+
+<b>Fixed points 1D</b> hypothesis allows splitting edges through a
+set of points parameterized 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
+
+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
+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
+possible to select the edges to be reversed either directly picking them in
+the 3D viewer or selecting the edges or groups of edges in the
+Object browser.
+
+\image html mesh_fixedpnt.png "Example of a submesh 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.
+
*/
