IMP 23078: [CEA 1498] Sewing of meshes without having to set the nodes ids

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

diff --git a/doc/salome/gui/SMESH/input/sewing_meshes.doc b/doc/salome/gui/SMESH/input/sewing_meshes.doc
index ad5f15e65f5eda18e608abea4b3be6a9c4a2243e..8b7bb76c4848d79807fc7b993fe88b10fd4cfadb 100644 (file)
--- a/doc/salome/gui/SMESH/input/sewing_meshes.doc
+++ b/doc/salome/gui/SMESH/input/sewing_meshes.doc
@@ -27,7 +27,13 @@ the type of sewing operation you would like to perform.</li>
 \anchor free_borders_anchor
 <h2>Sew free borders</h2>
 
 \anchor free_borders_anchor
 <h2>Sew free borders</h2>
 

-This functionality allows you to unite two free borders of a 2D mesh.
+This functionality allows you to unite free borders of a 2D mesh.
+
+There are two working modes: \a Automatic and \a Manual. In the \b
+Automatic mode, the program finds free borders coincident within a
+certain tolerance and sew them. Optionally it is possible to adjust
+the found free borders before sewing. In the \b Manual mode you are to
+define borders to sew by picking three nodes of each border.

 
 \image html sewing1.png
 
 
 \image html sewing1.png
 


@@ -53,8 +59,12 @@ the opposite border.
 In practice the borders to sew often coincide and in this case it is
 difficult to specify the first and the last nodes of a border since
 they coincide with the first and the last nodes of the other
 In practice the borders to sew often coincide and in this case it is
 difficult to specify the first and the last nodes of a border since
 they coincide with the first and the last nodes of the other

-border. To cope with this, manually \ref merging_nodes_page to fuse
-each pair of coincident nodes into one.
+border. To cope with this,
+\ref merging_nodes_page "merge" coincident nodes into one
+beforehand. Two figures below illustrate this approach.
+\image html sew_using_merge.png "Merge coincident nodes which are difficult to distinguish"
+<br>
+\image html sew_after_merge.png "After merging nodes it is easy to specify border nodes"

 
 The sewing algorithm is as follows:
 <ol>
 
 The sewing algorithm is as follows:
 <ol>