Creation of B-spline curve
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-.. image:: images/bspline_creation_panel.png
+.. figure:: images/bspline_creation_panel.png
:align: center
Click in the view to specify the control polygon of B-spline curve. The curve will be shown after the second point is initialized. To stop adding new poles, click **Esc** button or **Apply** the operation.
Created B-spline curve appears in the view.
-.. image:: images/bspline_result.png
- :align: center
+.. figure:: images/bspline_result.png
+ :align: center
-.. centered::
Non-periodic B-spline created
-.. image:: images/bspline_periodic_result.png
- :align: center
+.. figure:: images/bspline_periodic_result.png
+ :align: center
-.. centered::
Periodic B-spline created
**See Also** a sample TUI Script of :ref:`tui_create_bspline` operation.
Modification of B-spline curve
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-.. image:: images/bspline_modification_panel.png
+.. figure:: images/bspline_modification_panel.png
:align: center
-.. centered::
Modification panel for B-spline curve
The following options are provided to modify the already created B-spline curve: