X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fsmoothing.doc;fp=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fsmoothing.doc;h=eb74611cfcae525b7a58a85b480b1311e579b3f5;hb=e7f4c012fbf331df02bbde719b6e49cce95d202a;hp=dc15270a8e460109cfb6310c3f97df9fc8ad15b5;hpb=df9cc07c95bbe75654ed43634939a133ccebe2f6;p=modules%2Fsmesh.git
diff --git a/doc/salome/gui/SMESH/input/smoothing.doc b/doc/salome/gui/SMESH/input/smoothing.doc
index dc15270a8..eb74611cf 100644
--- a/doc/salome/gui/SMESH/input/smoothing.doc
+++ b/doc/salome/gui/SMESH/input/smoothing.doc
@@ -2,8 +2,9 @@
\page smoothing_page Smoothing
-\n Smoothing is used to adjust the locations of element corners
-(nodes) to reduce distortions in these elements.
+\n Smoothing is used to improve quality of 2D mesh by adjusting the
+locations of element corners (nodes). \note Depending on smoothing
+method and mesh geometry smoothing can decrease quality of elements.
To apply smoothing to the elements of your mesh:
@@ -23,23 +24,25 @@ The following dialog will appear:
- specify the IDs of the elements which will be smoothed:
-- Select the whole mesh, submesh or group activating this
-checkbox; or
+- Select the whole mesh, sub-mesh or group activating this
+ check-box; or
- choose mesh elements with the mouse in the 3D Viewer. It is
-possible to select a whole area with a mouse frame; or
-- input the element IDs directly in ID Elements field. The selected elements will be highlighted in the
-viewer; or
-- apply Filters. Set filter button allows to apply a filter to the selection of elements. See more
-about filters in the \ref selection_filter_library_page "Selection filter library" page.
+ possible to select a whole area with a mouse frame; or
+- input the element IDs directly in ID Elements field. The
+ selected elements will be highlighted in the viewer; or
+- apply Filters. Set filters button allows to apply a filter
+ to the selection of elements. See more about filters in the
+ \ref filtering_elements "Selection filter library" page.
-- define the Fixed nodes ids that should remain at their location during
-smoothing. If a mesh is built on a shape, the nodes built on its
-geometric edges are always fixed. If the smoothing is applied to a part
-of the mesh, the nodes of boundary elements are also
-fixed. It is possible to additionally fix any other nodes. The fixed nodes can be
-selected manually or by filters, just as the smoothed elements.
+- define the Fixed nodes ids that should remain at their
+ location during smoothing. If a mesh is built on a shape, the nodes
+ built on its geometric edges are always fixed. If the smoothing is
+ applied to a part of the mesh (a set of element), the nodes on
+ boundary of the element set are also fixed. It is possible to
+ additionally fix any other nodes. The fixed nodes can be selected
+ manually or by filters, just as the smoothed elements.
- choose the Smoothing Method:
- \b Laplacian smoothing pulls a node toward the center of
@@ -48,27 +51,26 @@ edge.
- \b Centroidal smoothing pulls a node toward the
element-area-weighted centroid of the surrounding elements.
-Typically, the Laplacian method will produce the mesh with the least element
-distortion. It is also the fastest method. Centroidal smoothing usually
-produces a mesh with more uniform element sizes. Both methods
-produce good results with "free" meshes.
+Laplacian method will produce the mesh with the least element
+edge length. It is also the fastest method. Centroidal smoothing
+produces a mesh with more uniform element sizes.
\image html image83.gif
-- specify the Iteration limit. Both smoothing methods
-iterate through a number of steps to produce the resulting smoothed
-mesh. At each new step the smoothing is reevaluated with the updated nodal locations. This
-process continues till the limit of iterations has been
-exceeded, or till the aspect ratio of all element is less than or equal to the
-specified one.
-- specify the Max. aspect ratio - the target mesh quality at which the
-smoothing algorithm should stop the iterations.
-- activate in parametric space checkbox if it is necessary to
-to improve the shape of faces in the parametric space
-of geometrical surfaces on which they are generated, else the shape of
-faces in the 3D space is improved.
+- specify the Iteration limit. Both smoothing methods iterate
+ through a number of steps to produce the resulting smoothed mesh. At
+ each new step the smoothing is reevaluated with the updated nodal
+ locations. This process continues till the limit of iterations has
+ been exceeded, or till the aspect ratio of all element is less than
+ or equal to the specified one.
+- specify the Max. aspect ratio - the target mesh quality at
+ which the smoothing algorithm should stop the iterations.
+- activate in parametric space check-box if it is necessary to
+ improve the shape of faces in the parametric space of geometrical
+ surfaces on which they are generated, else the shape of faces in the
+ 3D space is improved that is suitable for planar meshes only.
- Click \b Apply or Apply and Close button to confirm the operation.