Actuator for generating compound curvature

A method comprising:

• applying a voltage to an actuator, the actuator comprising:
• a primary electrode;
• a secondary electrode overlapping at least a portion of the primary electrode;
• and
• an electroactive layer disposed between and abutting the primary electrode and the secondary electrode, wherein the voltage is applied to the primary electrode to induce mechanical deformation of the actuator and a compound curvature in the electroactive layer, the primary electrode comprises a plurality of mutually isolated electrically conductive and radially partitioned segments, and a different voltage is applied to at least two of the segments.