--- /dev/null
+.. _changing_orientation_of_elements_page:
+
+********************************
+Changing orientation of elements
+********************************
+
+Orientation of an element is changed by changing the :doc:`order <connectivity>` of its nodes.
+
+*To change orientation of elements:*
+
+.. |img| image:: ../images/image79.png
+
+#. Select a mesh (and display it in the 3D Viewer if you are going to pick elements by mouse).
+#. In the **Modification** menu select the **Orientation** item or click *Orientation* button |img| in the toolbar.
+
+ The following dialog box will appear:
+
+ .. image:: ../images/orientaation1.png
+ :align: center
+
+ * Select type of elements to reorient: **Face** or **Volume**.
+ * **The main list** 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 **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 **Remove** button. The **Sort** button allows to sort the list of elements IDs. The **Set filter** button allows to apply a definite :ref:`filter <filtering_elements>` to the selection of elements.
+ * **Apply to all** radio button allows to modify the orientation of all elements of the selected mesh.
+ * *Select from** set of fields allows to choose a sub-mesh or an existing group whose elements can be added to the list.
+
+#. Click the **Apply** or **Apply and Close** button to confirm the operation.
+
+**See Also** a sample TUI Script of a :ref:`tui_orientation` operation.
+