Baseline

A real or imaginary reference line.

a. Posture – An imaginary line from the center of the skating foot through the hip and shoulder lines.
b. Team – An imaginary line forming the axis around which the members of a team rotate.
c. Dance – The imaginary line on the skating surface around which the steps of a dance are patterned, and which separates center and barrier lobes. The pattern line of a dance.