Drawing a spline by specifying control vertices

Splines drawn using control vertices display with a control frame when the spline is selected. You can then use the control frame to modify the shape of the spline. Control-vertex splines are affected by polynomial degrees and can be open or closed.

To draw a spline defined by control vertices   

   1   Do one of the following to choose Spline CV ():

    On the ribbon, choose Draw > Spline CV (in Draw) or Draw 3D > Spline CV (in Curves).

    On the menu, choose Draw > Spline > Spline CV.

    On the Draw toolbar, click the Spline CV tool.

    Type spline, press Enter, choose Method, then choose CV.

   2   Specify the first control vertex of the spline.

   3   Optionally choose Degree and enter the polynomial degree for the spline: 1 for linear, 2 for quadratic, 3 for cubic, etc. up to 10.

   4   Specify the second control vertex of the spline.

   5   Continue specifying as many control vertices as you want.

    6    When you have finished, press Enter or choose Close to close the spline.