X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2F2d_meshing_hypo.doc;h=dd42e9962c130c5b30361c1751e2f5a1643db6ef;hb=2daa321efae3d0c6ce41199fa5a2482630d505d9;hp=05ab6dd362b8301c7068ee1429325fe0a82086f5;hpb=79b1ac2b6df9117f16f11d444b1f165d477a1813;p=modules%2Fsmesh.git

diff --git a/doc/salome/gui/SMESH/input/2d_meshing_hypo.doc b/doc/salome/gui/SMESH/input/2d_meshing_hypo.doc
index 05ab6dd36..dd42e9962 100644
--- a/doc/salome/gui/SMESH/input/2d_meshing_hypo.doc
+++ b/doc/salome/gui/SMESH/input/2d_meshing_hypo.doc
@@ -6,7 +6,9 @@
 <ul>
 <li>\ref max_element_area_anchor "Max Element Area"</li>
 <li>\ref length_from_edges_anchor "Length from Edges"</li>
+<li>\ref hypo_quad_params_anchor "Quadrangle parameters"</li>
 <li>\ref quadrangle_preference_anchor "Quadrangle Preference"</li>
+<li>\ref triangle_preference_anchor "Triangle Preference"</li>
 </ul>
 
 <br>
@@ -21,7 +23,9 @@ which will compose the mesh of these 2D faces.
 
 \image html a-maxelarea.png
 
-\image html max_el_area.png
+\n
+
+\image html max_el_area.png "In this example, Max. element area is very small compared to the 1D hypothesis"
 
 <b>See Also</b> a sample TUI Script of a 
 \ref tui_max_element_area "Maximum Element Area" hypothesis
@@ -37,6 +41,31 @@ length calculated as an average edge length for a given wire.
 <b>See Also</b> a sample TUI Script of a 
 \ref tui_length_from_edges "Length from Edges" hypothesis operation.
 
+<br>
+\anchor hypo_quad_params_anchor
+<h2>Quadrangle parameters</h2>
+
+<b>Quadrangle parameters</b> is a hypothesis for
+Quadrangle (Mapping), which allows using this algorithm for meshing of
+triangular faces.In this case it is necessary to select the <b>Base vertex</b> 
+used as a degenerated edge.
+
+\image html hypo_quad_params_1.png "A face built from 3 edges"
+
+\image html hypo_quad_params_res.png "The resulting mesh"
+
+This hypothesis can be also used to mesh a segment of a circular face.
+Please, consider that there is a limitation on the selectiion of the degenerated
+vertex for the faces built with the angle > 180 degrees (see the picture).
+
+\image html hypo_quad_params_2.png "3/4 of a circular face"
+
+In this case, selection of a wrong vertex for the <b>Quadrangle parameters</b>
+hypothesis will generate a wrong mesh. The picture below
+shows the good (left) and the bad (right) results of meshing.
+
+\image html hypo_quad_params_res_2.png "The resulting meshes"
+
 <br>
 \anchor quadrangle_preference_anchor
 <h2>Quadrangle Preference</h2>
@@ -48,4 +77,14 @@ otherwise this mesh will contain some triangular elements.
 <br>
 This hypothesis has one restriction on its work: the total quantity of
 segments on all four sides of the face must be even (divisible by 2).
+
+<br>
+\anchor triangle_preference_anchor
+<h2>Triangle Preference</h2>
+
+This algorithm can be used only together with Quadrangle (Mapping)
+algorithm. It allows to build triangular mesh faces in the refinement
+area if the number of nodes at the opposite edges of a meshed face is not equal,
+otherwise refinement area will contain some quadrangular elements.
+<br>
 */