Interpolation Spline reference

Creates and sets controls for interpolation splines.

Access

Ribbon: Sketch tab Draw panel Interpolation Spline

Resize
Resizes the spline when you drag an endpoint. The endpoint on the opposite end of the spline remains in a fixed position.
Move
Moves the spline when you click it, and then drag.
Reshape
Reshapes the spline when you drag the control points, or drag a passive handle. The handles are tangent to the fit point. You can constrain and dimension them for more control of the spline shape.

Hold down ALT and drag a spline point to move other unconstrained points and preserve the shape of the spline.

In an active sketch, select the spline or a fit point and right-click to access the context menu options.