5 Length constraint fixes length of lines such as standalone line or rectangle side.
7 To create Length constraint in the active Sketch:
9 #. select in the Main Menu *Sketch - > Length* item or
10 #. click **Length** button in Sketch toolbar:
12 .. image:: images/length.png
20 .. image:: images/Length_panel.png
25 - **Line** is the the line object selected in the view
26 - **Value** is a line length, could be modified to set the desirable value
27 - **Text location** is a position of the length value label relating to extension line (in the view)
28 .. image:: images/location_left.png
30 **Left** inserts text at the left of the length extension line.
32 .. image:: images/location_automatic.png
34 **Automatic** inserts text at the middle of the length extension line if it has enough length, otherwise - to the left.
36 .. image:: images/location_right.png
38 **Right** inserts text to the right of the length extension line.
40 When the line is selected length value is displayed in the property panel and in the view.
42 When creating the constraint, after selection of a line at the first time:
44 - drag the length presentation in the view to the desired position (by move mouse and click once)
45 - set desirable length value in the input field in the view and press **Enter** or just press **Enter** to keep the current length
47 .. image:: images/Length_field_view.png
51 Length input in the view
53 **TUI Command**: *Sketch_1.setLength(LineObject, Value)*
55 **Arguments**: line + length value
60 Created Length appears in the view.
62 .. image:: images/Length_res.png
68 **See Also** a sample TUI Script of a :ref:`tui_create_length` operation.