Merge from V5_1_3_BR branch (07/12/09)

[modules/smesh.git] / doc / salome / gui / SMESH / input / prism_3d_algo.doc

diff --git a/doc/salome/gui/SMESH/input/prism_3d_algo.doc b/doc/salome/gui/SMESH/input/prism_3d_algo.doc
index 272bef2362849142fc52b3c26e4c4e089ef41419..5589ba3a761c8199ea4716deab69ce9cacb9ad88 100644 (file)
--- a/doc/salome/gui/SMESH/input/prism_3d_algo.doc
+++ b/doc/salome/gui/SMESH/input/prism_3d_algo.doc
@@ -4,17 +4,21 @@
 
 3D extrusion algorithm can be used for meshing prisms, i.e. <b>3D Shapes</b>
 defined by two opposing faces having the same number of vertices and
 
 3D extrusion algorithm can be used for meshing prisms, i.e. <b>3D Shapes</b>
 defined by two opposing faces having the same number of vertices and

-edges and meshed using the \ref projection_algos_page "2D Projection"
-algorithm. These two faces should be connected by quadrangle "side"
-faces.
+edges and meshed using, for example,  the \ref projection_algos_page
+"2D Projection" algorithm. These two faces should be connected by
+quadrangle "side" faces.

 
 The opposing faces can be meshed with either quadrangles or triangles,
 while the side faces should be meshed with quadrangles only.
 
 
 The opposing faces can be meshed with either quadrangles or triangles,
 while the side faces should be meshed with quadrangles only.
 

-\image html image157.gif
+\image html image157.gif "Prism with 3D extrusion meshing".

 
 As you can see, the <b>3D extrusion</b> algorithm permits to build and to
 have in the same 3D mesh such elements as hexahedrons, prisms and
 polyhedrons.
 
 
 As you can see, the <b>3D extrusion</b> algorithm permits to build and to
 have in the same 3D mesh such elements as hexahedrons, prisms and
 polyhedrons.
 

-*/
\ No newline at end of file
+\note This algorithm works correctly only if the opposing faces have
+the same (or similar) meshing topography. Otherwise, 3D extrusion
+algorithm can fail to build mesh volumes.
+
+*/