Define the term line clipping. The parametric equation of line PQ may be defined as P + t (Q-P) where 0 ≤ t ≤ 1. Explain this equation with the help of an example. Derive the expression for t with respect to ith edge and PQ (line to be clipped) in the context of Cyber Beck line clipping algorithm. How will you determine whether a point is PE or PL in Cyrus Beck line clipping algorithm.

Define the term line clipping. The parametric equation of line PQ may be defined as P + t (Q-P) where 0 ≤ t ≤ 1. Explain this equation with the help of an example. Derive the expression for t with respect to ith  edge and PQ (line to be clipped) in the context of Cyber Beck line clipping algorithm. How will you determine whether a point is PE  or PL in Cyrus Beck line clipping algorithm.