Cyrus Beck-Cohen Suther land-Line clipping algorithms

Question

Distinguish between Cyrus Beck and Cohen Suther land and Line clipping algorithms?

Answer 1

i) Cohen - Sutherland Line Clipping:

a) Cohen – Sutherland line clipping is applicable on rectangular windows only.
b) Cohen – Sutherland line clipping involves the division of region surrounding the window area into the four sections Up, Down, left, Right and employs number 0 &1.

ii) Cyrus Beck Line Clipping:

a) Cyrus Beck Line Clipping is applicable to any non convex or convex window.
b) Cyrus Beck Line Clipping is a parametric line clipping algorithm and employs 10 < t < 1 where t is a parameter.