Display or hide spline interpolation points
When you display the construction of a spline with interpolation points, you will see not just the interpolation points, but a control polygon as well. Creo Elements/Direct Modeling calculates what control polygon is necessary to create the spline you specify. You can use this operation to display interpolation points, control points and polygons for any spline.
To display or hide interpolation points,
1. Click Modeling and then, in the Draw group, click the arrow next to 
Spline).
Spline).2. To show interpolation points, click 
Display On in the Spline section.
Display On in the Spline section.3. To hide interpolation points, click 
Display Off in the Change Spline section.
Display Off in the Change Spline section.4. Click the spline(s).
5. Click OK 
to complete the operation.
to complete the operation.