X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fsmoothing.doc;h=dc15270a8e460109cfb6310c3f97df9fc8ad15b5;hp=f1991d62b08aa4c2fb016f637645b007baf7339c;hb=e7c421ee2a70216b7f739e3bb4d484fc60517682;hpb=79b1ac2b6df9117f16f11d444b1f165d477a1813;ds=sidebyside
diff --git a/doc/salome/gui/SMESH/input/smoothing.doc b/doc/salome/gui/SMESH/input/smoothing.doc
index f1991d62b..dc15270a8 100644
--- a/doc/salome/gui/SMESH/input/smoothing.doc
+++ b/doc/salome/gui/SMESH/input/smoothing.doc
@@ -7,30 +7,40 @@
To apply smoothing to the elements of your mesh:
-- Display a mesh or a submesh in the 3D viewer.
+
- In the \b Modification menu select the \b Smoothing item or click
"Smoothing" button in the toolbar.
-\image html image84.gif
+\image html image84.png
"Smoothing" button
-The dialog box contains the following fields which should be
-specified:
+The following dialog will appear:
\image html smoothing.png
+
+- In this dialog:
-- Id Elements field allows to specify the elements which
-should be smoothed by selecting them in the 3D viewer (lock \b Shift
-button to select several elements).
-- Select whole mesh, submesh or group - smoothing is applied
-to the whole mesh or its part.
-- Fixed nodes ids: some nodes keep their location during
-smoothing. If a mesh is built on a geometry shape, the nodes built on
-geometrical edges are always fixed. If smoothing is applied to a part
-of a mesh then the boundary nodes of an elements set are also
-fixed. Any other nodes may be additionally fixed.
-- Smoothing Method:
+
- specify the IDs of the elements which will be smoothed:
+
+- Select the whole mesh, submesh or group activating this
+checkbox; 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.
+
+
+
+- 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.
+- choose the Smoothing Method:
- \b Laplacian smoothing pulls a node toward the center of
surrounding nodes directly connected to that node along an element
@@ -39,37 +49,34 @@ edge.
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 faster method.Centroidal smoothing usually
-produces a mesh that has more uniform element sizes. Both methods
+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.
\image html image83.gif
-- Iteration limit: both of the smoothing methods use an
-iterative procedure to converge toward a smoothed mesh. All nodes are
-smoothed according to one of the techniques shown above. Then the
-smoothing is reevaluated with the updated nodal locations. This
-process continues until the maximum number of iterations has been
-exceeded, or all elements has aspect ratio less or equal than the
+
- 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.
-- Max. aspect ratio allows to define the quality at which the
-smoothing algorithm should stop the iterations as the target of the
-operation has been reached.
-- When in parametric space radio button is checked, the
-algorithm tries to improve the shape of faces in the parametric space
+
- 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.
-
-- Click the \b Apply or \b OK button to confirm the operation.
+- Click \b Apply or Apply and Close button to confirm the operation.
-\image html smoothing1.png
+\image html smoothing1.png "The initial mesh"
-\image html smoothing2.png
+\image html smoothing2.png "The smoothed mesh"
See Also a sample TUI Script of a
\ref tui_smoothing "Smoothing" operation.