+.. |collinear.icon| image:: images/collinear.png
Collinear constraint
====================
+Collinear constraint forces lines to be collinear.
-.. image:: images/Colinear.png
- :align: center
+To create a Collinear constraint in the active Sketch:
-.. centered::
- Create a collinear constraint
+#. select in the Main Menu *Sketch - > Collinear* item or
+#. click |collinear.icon| **Collinear** button in Sketch toolbar:
+
+Property panel:
+
+.. figure:: images/Collinear_panel.png
+ :align: center
+
+Input fields:
+
+- **First line** is the first line selected in the view.
+- **Second line** is the second line selected in the view.
+
+| After the lines are selected, they are translated to become collinear.
+| The lines are marked with a special sign.
+
+**TUI Command**:
+
+.. py:function:: Sketch_1.setCollinear(Line1, Line2)
+
+ :param object: First object.
+ :param object: Second object.
+ :return: Result object.
+
+Result
+""""""
+
+Created Collinear constraint appears in the view.
+
+.. figure:: images/Collinear_res.png
+ :align: center
+
+ Created collinear constraint
+
+**See Also** a sample TUI Script of :ref:`tui_create_collinear` operation.
