X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fprism_3d_algo.doc;h=5589ba3a761c8199ea4716deab69ce9cacb9ad88;hb=2daa321efae3d0c6ce41199fa5a2482630d505d9;hp=272bef2362849142fc52b3c26e4c4e089ef41419;hpb=79b1ac2b6df9117f16f11d444b1f165d477a1813;p=modules%2Fsmesh.git

diff --git a/doc/salome/gui/SMESH/input/prism_3d_algo.doc b/doc/salome/gui/SMESH/input/prism_3d_algo.doc
index 272bef236..5589ba3a7 100644
--- 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
-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.
 
-\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.
 
-*/
\ 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.
+
+*/