Interpolation
=============
-The Interpolation feature creates curve (wire) using already existing vertices in other objects.
+Interpolation feature creates a curve (wire) using vertices already existing in other objects.
-To create interpolation in the active part:
+To create an interpolation in the active part:
#. select in the Main Menu *Build - > Interpolation* item or
#. click **Interpolation** button in the toolbar
.. centered::
Create an interpolation
-Select one or several vertices or points in a viewer.
+Select one or several vertices or points in the viewer.
- **Closed** makes the interpolation curve closed.
-- **Reorder** reorders selected points to minimize length of the curve.
+- **Reorder** reorders the selected points to minimize the length of curve.
-- **Tangents** makes start and end of the curve tangent to selected edges. User has to select edges for start and end in corresponded fields.
+- **Tangents** makes start and end of the curve tangent to the selected edges. The user has to select start and end edges in the corresponding fields.
**Apply** button creates an interpolation.
-**Cancel** button cancels operation.
+**Cancel** button cancels the operation.
**TUI Command**:
Result
""""""
-The result of the operation will be a curve created from selected shapes:
+The result of the operation will be a curve created from the selected shapes:
.. image:: images/CreateInterpolation.png
:align: center
.. centered::
Result of the operation.
-**See Also** a sample TUI Script of a :ref:`tui_create_interpolation` operation.
+**See Also** a sample TUI Script of :ref:`tui_create_interpolation` operation.
