X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fquad_from_ma_algo.doc;h=6a90f376e4e63b7de1e9bba8c631fbf7815c1c2a;hp=89a919ef349711dda921263d8603595fc3406409;hb=512d3547bc726e9bb5732b1d0692e1141ca258e1;hpb=0c1e70a38f79339a8d117b3066595f4f90e28d0e
diff --git a/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc b/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc
index 89a919ef3..6a90f376e 100644
--- a/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc
+++ b/doc/salome/gui/SMESH/input/quad_from_ma_algo.doc
@@ -5,13 +5,18 @@
Medial Axis Projection algorithm can be used for meshing faces with
sinuous borders and having channel-like shape, for which is it
difficult to define 1D hypotheses so that generated quadrangles to be
-of good shape.
+of good shape. The algorithm can be also applied to faces with ring
+topology, which can be viewed as a closed 'channel'. In the latter
+case radial discretization of a ring can be specified by
+using Number of Layers or Distribution of Layers
+hypothesis.
-\image html quad_from_ma_mesh.png "A mesh of a river model"
+\image html quad_from_ma_mesh.png "A mesh of a river model to the left and of a ring-face to the right"
The algorithm assures good shape of quadrangles by constructing Medial
Axis between sinuous borders of the face and using it to
-discretize the borders.
+discretize the borders. (Shape of quadrangles can be not perfect at
+locations where opposite sides of a 'channel' are far from being parallel.)
\image html quad_from_ma_medial_axis.png "Medial Axis between two blue sinuous borders"