X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fbasic_meshing_algos.doc;h=b4a99c41f453482c371db4fd1c316ff074efbc89;hp=4804800c533b0239e873da8f6c3d2a4d45d169c0;hb=b582abf7fad6880971653f3764d643f6c9805b53;hpb=fe7d1d57677486d8c546226dc2bf573fbfb6679d

diff --git a/doc/salome/gui/SMESH/input/basic_meshing_algos.doc b/doc/salome/gui/SMESH/input/basic_meshing_algos.doc
index 4804800c5..b4a99c41f 100644
--- a/doc/salome/gui/SMESH/input/basic_meshing_algos.doc
+++ b/doc/salome/gui/SMESH/input/basic_meshing_algos.doc
@@ -14,10 +14,10 @@ of several dimensions.
 <li>For meshing of 1D entities (<b>edges</b>):</li>
 \anchor a1d_algos_anchor
 <ul>
-<li><em>Wire Discretization</em> meshing algorithm - splits an edge into a
+<li><b>Wire Discretization</b> meshing algorithm - splits an edge into a
 number of mesh segments following an 1D hypothesis.
 </li>
-<li><em>Composite Side Discretization</em> algorithm - allows to apply a 1D
+<li><b>Composite Side Discretization</b> algorithm - allows to apply a 1D
   hypothesis to a whole side of a geometrical face even if it is
   composed of several edges provided that they form C1 curve in all
   faces of the main shape.</li>
@@ -26,7 +26,7 @@ number of mesh segments following an 1D hypothesis.
 <li>For meshing of 2D entities (<b>faces</b>):</li>
 
 <ul>
-<li><em>Triangle (Mefisto)</em> meshing algorithm - splits faces
+<li><b>Triangle (Mefisto)</b> meshing algorithm - splits faces
   into triangular elements.</li>
 <li>\subpage quad_ijk_algo_page "Quadrangle (Mapping)" meshing
   algorithm - splits faces into quadrangular elements.</li>
@@ -39,8 +39,15 @@ number of mesh segments following an 1D hypothesis.
 <li>For meshing of 3D entities (<b>solid objects</b>):</li>
 
 <ul>
-<li><em>Hexahedron (i,j,k)</em>meshing algorithm - 6-sided solids are
-  split into hexahedral (cuboid) elements.</li>
+<li><b>Hexahedron (i,j,k)</b> meshing algorithm - solids are
+  split into hexahedral elements thus forming a structured 3D
+  mesh. The algorithm requires that 2D mesh generated on a solid could
+  be considered as a mesh of a box, i.e. there should be eight nodes
+  shared by three quadrangles and the rest nodes should be shared by
+  four quadrangles.
+\image html hexa_ijk_mesh.png "Structured mesh generated by Hexahedron (i,j,k) on a solid bound by 16 faces"
+</li>
+
 <li>\subpage cartesian_algo_page "Body Fitting" meshing
   algorithm - solids are split into hexahedral elements forming
   a Cartesian grid; polyhedra and other types of elements are generated
@@ -52,25 +59,25 @@ number of mesh segments following an 1D hypothesis.
 \image html image126.gif "Example of a hexahedral 3D mesh"
 </ul>
 
-Some 3D meshing algorithms, such as Hexahedron(i,j,k) and some
-commercial ones, also can generate 3D meshes from 2D meshes, working
-without geometrical objects.
+Some 3D meshing algorithms, such as Hexahedron(i,j,k) also can
+generate 3D meshes from 2D meshes, working without geometrical
+objects.
 
 There is also a number of more specific algorithms:
 <ul>
-<li>\subpage prism_3d_algo_page "for meshing prismatic 3D shapes"</li>
-<li>\subpage quad_from_ma_algo_page "for meshing faces with sinuous borders"</li>
-<li> <em>Polygon per Face</em> meshing algorithm - generates one mesh
+<li>\subpage prism_3d_algo_page "for meshing prismatic 3D shapes with hexahedra and prisms"</li>
+<li>\subpage quad_from_ma_algo_page "for quadrangle meshing of faces with sinuous borders and rings"</li>
+<li> <b>Polygon per Face</b> meshing algorithm - generates one mesh
   face (either a triangle, a quadrangle or a polygon) per a geometrical
   face using all nodes from the face boundary.</li>
 <li>\subpage projection_algos_page "for meshing by projection of another mesh"</li>
 <li>\subpage import_algos_page "for meshing by importing elements from another mesh"</li>
-<li>\subpage radial_prism_algo_page "for meshing geometrical objects with cavities"</li>
-<li>\subpage radial_quadrangle_1D2D_algo_page "for meshing special 2d faces (circles and part of circles)"</li>
+<li>\subpage radial_prism_algo_page "for meshing 3D geometrical objects with cavities with hexahedra and prisms"</li>
+<li>\subpage radial_quadrangle_1D2D_algo_page "for quadrangle meshing of disks and parts of disks"</li>
 <li>\subpage use_existing_page "Use Edges to be Created Manually" and 
-\ref use_existing_page "Use Faces to be Created Manually" algorithms can be
-used to create a 1D or a 2D mesh in a python script.</li>
-<li>\subpage segments_around_vertex_algo_page "for defining the local size of elements around a certain node"</li>
+  \ref use_existing_page "Use Faces to be Created Manually" algorithms can be
+  used to create a 1D or a 2D mesh in a python script.</li>
+<li>\subpage segments_around_vertex_algo_page "for defining the length of mesh segments around certain vertices"</li>
 </ul>
 
 \ref constructing_meshes_page "Constructing meshes" page describes in