\page rotation_page Rotation
-\n This operation allows to rotate in space your mesh or
+\n This operation allows to rotate in space the mesh or
some of its elements.
+<em>To rotate the mesh:</em>
+
+<ol>
+<li>From the \b Modification menu choose \b Transformation -> \b Rotation item or click
+<em>"Rotation"</em> button in the toolbar.
+
\image html rotation_ico.png "Rotation button"
-<em>To rotate your mesh:</em>
-\par
-From the \b Modification choose \b Transformation and from its sub-menu
-select the \b Rotation item. The following dialog box shall appear:
+The following dialog will appear:
\image html rotation.png
-\par
-In this dialog box you can specify the elements which should be
-rotated
+
+</li>
+
+<li>
+In this dialog:
+<ul>
+<li>specify the IDs of the elements which will be rotated:
+
<ul>
-<li>Check on <b>Select the whole mesh, submesh or group</b> option
-<li>Choosing them manually with the mouse in the 3D Viewer. You can
-click on an element in the 3D viewer and it will be highlighted</li>
-<li>Applying Filters. The <b>Set filter</b> button allows to apply a
-definite filter to selection of the elements. See more
-about filters on the
-\ref selection_filter_library_page "Selection filter library" page.</li>
+<li><b>Select the whole mesh, submesh or group</b> activating this
+checkbox; or</li>
+<li>choose mesh elements with the mouse in the 3D Viewer. It is
+possible to select a whole area with a mouse frame; or</li>
+<li>input the element IDs directly in <b>ID Elements</b> field. The selected elements will be highlighted in the
+viewer; or</li>
+<li>apply Filters. <b>Set filter</b> 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.</li>
</ul>
- and the rotation parameters:
+</li>
+
+<li>specify the axis of rotation:
<ul>
-<li>\b Axis: point and vector</li>
-<li>\b Angle of rotation</li>
+<li>specify the cooordinates of the start \b Point of the vector of rotation;</li>
+<li>specify the \b Vector of rotation through the coordinates of its
+end point with respect to the coordinates of the start point;</li>
</ul>
+</li>
+<li>specify the \b Angle of rotation </li>
+
+<li>specify the conditions of rotation:
+<ul>
+<li>activate <b>Move elements</b> radio button to create the source
+mesh (or elements) at the new location and erase it from the previous location;</li>
+<li>activate <b>Copy elements</b> radio button to create the source
+mesh (or elements) at the new location, but leave it at the previous
+location, the source mesh will be considered one and single mesh with the result of the rotation;</li>
+<li>activate <b>Create as new mesh</b> radio button to leave the
+source mesh (or elements) at its previous location and create a new
+mesh at the new location, the new mesh appears in the Object Browser
+with the default name MeshName_rotated (it is possible to change this
+name in the adjacent box);</li>
+<li>activate <b> Copy groups </b> checkbox to copy the groups of elements of the source mesh to the newly created mesh.</li>
+</ul>
+</li>
+
+<li>Click \b Apply or <b> Apply and Close</b> button to confirm the
+operation.</li>
-\n Toggle the corresponding checkbox to <b> Select whole mesh, submesh or group.</b>
-\n When <b>Move elements</b> radio button is selected, the source mesh (or elements) is created at the new location and erased from its previous location
-\n When <b>Copy elements</b> radio button is selected,the source mesh (or elements) is created at the new location, but it also remains at its previous location and is considered one and single mesh with the result of the rotation.
-\n When <b>Create as new mesh</b> radio button is selected, the source mesh (or elements) remains at its previous location and a new mesh is created at the new location and appears in the Object Browser with the default name MeshName_rotated (you can change this name in the adjacent box).
-\n <b> Copy groups </b> checkbox allows copying the groups of elements of the source mesh to the newly created one.
-\par
+</ol>
\image html rotation1.png "The initial mesh"
