Guru Nanak Dev University 2007-5th Sem B.E Computer Science COMPUTER GRAPHICS (CS-309) (-2k7) - Question Paper

2117

B.Tech (comp. Sc. & Engg.)/M.Tech (Computer Science and Engineering) V-Semester

COMPUTER GRAPHICS

Paper - CS-309

Time Allowed - 3 Hours
Maximum Marks : 100

Note : Attempt any 5 ques.. All ques. carry equal marks.

1. (a) elaborate the factors that affect for achieving real time performance in CRT displays ? (10)
(b) How do the short and long persistence phosphors affect the CRT display technologies ? (10)

2. (a) How do you setup the decision parameter for developing midpoint circle generating algorithm? Illustrate the method. (10)
(b) Rasterise a circle of centre (4,5) with provided radius eight using above algorithm. (10)

3. (a) Magnify the triangle with vertices A(0,0), B(1,1) and (5,2) to twice its size while keeping C(5,2) fixed. (15)
(b) Differentiate ranging from translation and rotation. (5)

4. (a) describe Cohen-Sutherland Line Clipping Algorithm with a suitable example. (15)
(b) describe Viewing. (5)

5. (a) Elucidate the pointers method of removing hidden surfaces from an object. (15)
(b) elaborate workstations ? discuss. (5)

6. provided a unit cube with 1 corner at (0,0,0) and the opposite corner at (1,1,1). Derive the transformation necessary to rotate the cube by T degrees about the main diagonal (from (0,0,0) to (1,1,1)) in counterclockwise direction when looking along the diagonal towards the origin. (20)

7. (a) Solve and write the matrix for reflection about the line y = -x. (15)
(b) elaborate the various text clipping techniques ? (5)

8. Write short notes on the subsequent -
(a) Graphic Input devices
(b) DDA
(c) Projection
(d) Video Controller (20)

Earning:   Approval pending.