To Add Points to a Spline
You can add points to the interior of a spline, or to the exterior, thus extending the spline.
1. Select the spline, and then right-click to display the shortcut menu.
2. Click
Sketch and then click the arrow next to
Spline.
3. Click Edit Spline. The MOD SPLINE and MOVE PNTS menus appear in the Menu Manager.
4. In the MOD SPLINE menu, click Add Points. Interior is selected by default in the NEW POINTS menu.
5. Do one of the following:
◦ Click Interior and add points to the interior of the spline by selecting any location on the spline between any two existing points.
◦ Click Exterior and extend the spline by adding points beyond its current endpoints. Select the spline endpoint to extend; then select additional points.