Vertical constraint
===================
+
+Vertical constraint fixes lines as parallel to the vertical axis.
+
+To create a Vertical constraint in the active Sketch:
+
+#. select in the Main Menu *Sketch - > Vertical* item or
+#. click **Vertical** button in Sketch toolbar:
+
+.. image:: images/vertical.png
+ :align: center
+
+.. centered::
+ **Vertical** button
+
+Property panel:
+
+.. image:: images/Vertical_panel.png
+ :align: center
+
+Input fields:
+
+- **Line** is the line selected in the view.
+
+| After the line is selected it becomes parallel to the vertical axis in the view.
+| **V** sign is added above the line.
+
+**TUI Command**: *Sketch_1.setVertical(LineObject)*
+
+**Arguments**: 1 line object
+
+Result
+""""""
+
+Created Vertical constraint appears in the view.
+
+.. image:: images/Vertical_res.png
+ :align: center
+
+.. centered::
+ Vertical constraint created
+
+**See Also** a sample TUI Script of :ref:`tui_create_vertical` operation.
\ No newline at end of file
