# Points of intersection (PI) entry method

To add an element to the alignment:

1. Define the points of intersection.
2. Select the Curve type. If you select:
   - Circular, enter the Radius and Arc length.
   - Transition|Arc|Transition, enter the Radius, Arc length, Transition length in and Transition length out.
   - Transition|Transition, enter the Radius, Transition length in and Transition length out.
   - None, no further values are required.
3. Tap Store.