X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=doc%2Fsalome%2Fgui%2FSMESH%2Finput%2Fremoving_nodes_and_elements.doc;h=fd506d2b76e01ba038c55e6fca22e337604b64c0;hb=67909c435c61c79a648ca9beee02b77c68657e5b;hp=be1944a48199175c94c95ee3c82ecd2d3edd5fc9;hpb=79b1ac2b6df9117f16f11d444b1f165d477a1813;p=modules%2Fsmesh.git
diff --git a/doc/salome/gui/SMESH/input/removing_nodes_and_elements.doc b/doc/salome/gui/SMESH/input/removing_nodes_and_elements.doc
index be1944a48..fd506d2b7 100644
--- a/doc/salome/gui/SMESH/input/removing_nodes_and_elements.doc
+++ b/doc/salome/gui/SMESH/input/removing_nodes_and_elements.doc
@@ -6,7 +6,9 @@
- \ref removing_nodes_anchor "Nodes"
+- \ref removing_orphan_nodes_anchor "Orphan Nodes"
- \ref removing_elements_anchor "Elements"
+- \ref clear_mesh_anchor "Clear Mesh Data"
@@ -17,28 +19,57 @@
- Select your mesh in the Object Browser or in the 3D viewer.
-- From the Modification menu choose Remove and from the associated
-submenu select the Remove nodes, or just click "Remove nodes"
+
- From the Modification menu choose Remove and from the associated
+submenu select the Nodes, or just click "Remove nodes"
button in the toolbar.
-\image html image88.gif
+\image html remove_nodes_icon.png
"Remove nodes" button
The following dialog box will appear:
\image html removenodes.png
-In this dialog box you can specify one or several nodes (with pressed
-Shift button) by choosing them in the 3D viewer.
+In this dialog box you can specify one or several nodes:
+
+- choose mesh nodes with the mouse in the 3D Viewer. It is
+possible to select a whole area with a mouse frame; or
+- input the node IDs directly in ID Elements field. The selected nodes will be highlighted in the
+viewer; or
+- apply Filters. Set filter button allows to apply a filter to the selection of nodes. See more
+about filters in the \ref selection_filter_library_page "Selection filter library" page.
+
+
+
\note Be careful while removing nodes because if you remove a definite
node of your mesh all adjacent elements will be also deleted.
-\image html remove_nodes1.png
+
+\anchor removing_orphan_nodes_anchor
+Removing orphan nodes
-\image html remove_nodes2.png
+There is a quick way to remove all orphan (free) nodes.
+
+To remove orphan nodes:
+
+- Select your mesh in the Object Browser or in the 3D viewer.
+
+- From the Modification menu choose Remove and from the associated
+submenu select Orphan Nodes, or just click "Remove orphan nodes"
+button in the toolbar.
+
+\image html remove_orphan_nodes_icon.png
+"Remove orphan nodes" button
+
+The following Warning message box will appear:
+
+\image html removeorphannodes.png
+
+Confirm nodes removal by pressing "Yes" button.
+
\anchor removing_elements_anchor
@@ -48,8 +79,8 @@ node of your mesh all adjacent elements will be also deleted.
- Select your mesh in the Object Browser or in the 3D viewer.
-- From the \b Modification menu choose \b Remove and from the
-associated submenu select the Remove elements, or just click
+
- From the Modification menu choose Remove and from the
+associated submenu select the Elements, or just click
"Remove elements" button in the toolbar.
\image html remove_elements_icon.png
@@ -59,15 +90,48 @@ The following dialog box will appear:
\image html removeelements.png
-In this dialog box you can specify one or several elements of your
-mesh (with pressed Shift button) by choosing them in the 3D viewer.
+In this dialog box you can specify one or several elements
+
+- 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.
+
+
-- Click OK or Apply to confirm deletion of the specified elements.
+- Click \b Apply or Apply and Close to confirm deletion of the specified elements.
+
+
+\image html remove_nodes1.png "The initial mesh"
+
+\image html remove_nodes2.png "The mesh with some elements removed"
+
+
+\anchor clear_mesh_anchor
+Clearing Mesh Data
+
+To remove all nodes and all types of cells in your mesh at once:
+
+- Select your mesh in the Object Browser or in the 3D viewer.
+
+- From the Modification menu choose Remove and from the associated
+submenu select the Clear Mesh Data, or just click "Clear Mesh Data"
+button in the toolbar. You can also right-click on the mesh in the
+Object Browser and select Clear Mesh Data in the pop-up menu.
-\image html remove_elements1.png
+
+\image html mesh_clear.png
+"Clear Mesh Data" button
-\image html remove_elements2.png
+\note This command works in a different way in different situations:
+ - if the mesh is computed on a geometry, then "Clear Mesh Data" removes
+ all elements and nodes.
+ - if the mesh is not based on a geometry (imported, compound, created from
+ scratch etc.), then "Clear Mesh Data" removes only the elements and
+ nodes computed by algorithms. If no such elements or nodes have been created, can remove nothing.
See Also a sample TUI Script of a
\ref tui_removing_nodes_and_elements "Removing Nodes and Elements" operation.