+.. |middlepoint.icon| image:: images/MiddlePoint.png
-Middle constraint
-=================
+Middle point constraint
+=======================
+
+Middle point constraint forces a point to middle of a line.
+
+To create a Middle point in the active Sketch:
+
+#. select in the Main Menu *Sketch - > Middle point* item or
+#. click |middlepoint.icon| **Middle point** button in Sketch toolbar:
+
+Property panel:
+
+.. figure:: images/Middlepoint_panel.png
+ :align: center
+
+Input fields:
+
+- **First object** is a point or a line selected in the view.
+- **Second object** is a point or a line selected in the view.
+
+Note that one of two objects should be a line and the other a point (i.e. a point, a line or an arc end point, a center of a circle or an arc).
+
+| After the objects are selected, the point is moved to the middle of the line.
+| The middle points are marked with a special sign.
+
+**TUI Command**:
+
+.. py:function:: Sketch_1.setMiddlePoint(Point, Line)
+
+ :param object: A point.
+ :param object: A line.
+ :return: Result object.
+
+Result
+""""""
+
+Created Middle point constraint appears in the view.
+
+.. figure:: images/Middlepoint_res.png
+ :align: center
+
+ Created middle point constraint
+
+**See Also** a sample TUI Script of :ref:`tui_create_middle` operation.
