Explain the Sutherland Hodgeman polygon clipping

Question

Explain the Sutherland Hodgeman polygon clipping in brief. What are its key features?

Answer 1

a) The clipping polygon that lies within the clipping window.

b) Four possible cases: first vertex is exterior the window, first vertex is within the window, both vertex are outside, both vertex inside.

c) It repeats the procedure of algorithm.

d) Convex polygon is properly clipped by using this clipping.

e) Convex and concave polygon is also employed.