\page changing_orientation_of_elements_page Changing orientation of elements
-\n Orientation of an element is changed by reverting the order of its nodes.
+\n Orientation of an element is switched by changing the order of its nodes.
<em>To change orientation of elements:</em>
<ol>
-<li>Display a mesh or a submesh in the 3D viewer.</li>
+<li>Select a mesh.</li>
+<li>Display a mesh, a group or a sub-mesh if you plan to select
+ elements to reorient in the 3D viewer.</li>
<li>In the \b Modification menu select the \b Orientation item or click
<em>Orientation</em> button in the toolbar.
<center>
\image html orientaation1.png
</center>
+<br>
<ul>
+<li>Select <b>Element Type</b> to reorient: either \b Face or \b
+ Volume </li>
<li><b>The main list</b> shall contain the elements which will be
-reoriented. You can click on an element in the 3D viewer and it will
-be highlighted. After that click the \b Add button and the ID of this
-element will be added to the list. To remove a selected element or
-elements from the list click the \b Remove button. The \b Sort button
-allows to sort the list of elements IDs. The <b>Set filter</b> button
-allows to apply a definite filter to selection of elements of your
-group.</li>
+ reoriented. You can click on an element in the 3D viewer and it will
+ be highlighted. After that click the \b Add button and the ID of this
+ element will be added to the list. To remove a selected element or
+ elements from the list click the \b Remove button. The \b Sort button
+ allows to sort the list of elements IDs. <br>
+ The <b>Set filter</b> button allows to apply a definite filter to
+ selection of elements of your group. Depending on \a Source of
+ elements to filter selected in \ref filtering_elements "Filter"
+ dialog, the filter will be applied to different sets of elements.<ul>
+ <li> To all elements of the mesh - for \a Mesh source. All
+ elements satisfying the filter criteria will be highlighted in the
+ Viewer. You can adjust the selection and add the selected elements
+ to the <b>main list</b>.</li>
+ <li> To the elements selected in the Viewer - for <em>Initial
+ Selection</em> source. As a result, elements rejected by the
+ filter will be deselected.</li>
+ <li> To the elemets present in the <b>main list</b> -
+ for <em>Current Dialog</em> source. As a result, elements rejected
+ by the filter will be remove from the list.</li> </ul>
+</li>
<li><b>Apply to all</b> radio button allows to modify the orientation
-of all elements of the currently displayed mesh or submesh.</li>
-<li><b>Select from</b> set of fields allows to choose a submesh or an
-existing group whose elements will be automatically added to the
-list.</li>
+of all elements of the mesh.</li>
+<li><b>Select from</b> set of fields allows to choose a sub-mesh or a
+group whose elements can be added to the list.</li>
</ul>
</li>
