.. _sketchPerpendicular:
-.. |perpendicular.icon| image:: images/perpendicular.png
+.. |Perpendicular.icon| image:: images/Perpendicular.png
Perpendicular constraint
========================
Perpendicular constraint fixes two lines at 90 degrees to one another.
+For a line and a circle/arc the perpendicular constraint fixes the center of circle/arc to be on a line.
To create a Perpendicular constraint in the active Sketch:
#. select in the Main Menu *Sketch - > Perpendicular* item or
-#. click |perpendicular.icon| **Perpendicular** button in Sketch toolbar:
+#. click |Perpendicular.icon| **Perpendicular** button in Sketch toolbar:
Property panel:
-.. image:: images/Perpendicular_panel.png
+.. figure:: images/Perpendicular_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.
+- **First object** is the first line, circle or arc selected in the view.
+- **Second object** is the second line, circle or arc selected in the view.
-After the lines are selected, a special sign will be added to each of them in the view.
+After the objects are selected, a special sign will be added to each of them in the view.
+
+If one of selected objects is circular, then another has to be a straight line.
**TUI Command**:
Created Perpendicular constraint appears in the view.
-.. image:: images/Perpendicular_res.png
- :align: center
+.. figure:: images/Perpendicular_res.png
+ :align: center
-.. centered::
Created perpendicular constraint
**See Also** a sample TUI Script of :ref:`tui_create_perpendicular` operation.
