Punjab Technical University 2005 M.C.A COMPUTER GRAPHICS (N2) 501 - exam paper

COMPUTER GRAPHICS (N2) MCA 501 fifth Sem May 2k5



Max Marks 60

Note: Attempt 1 ques. every from parts A, B, C and D. part E is compulsory
part A Marks: nine every

1. (a) How do the short and long-persistence phosphor affect the CRT display technologies?

(b) elaborate the factors that affect for achieving real time performance in CRT displays? 5,4

2. Distinguish clearly ranging from the following:
(a) Rasterization and Scan-conversion
(b) Flatbed and Drum plotters
(c) Impact and Non-impact printers. 3 x 3

part B Marks: nine every

3. (a) How do you set up the decision parameter for developing mid-point circle generating algorithm? Illustrate the method.

(b) Rasterite a circle of centre (4,5) with provided radius eight using above algorithm. 5,4
4. Magnify the triangle with vertices A(0,0), B (1,1) and C (5,2) to twice its size while keeping C (5,2).fixed.

part C Marks: nine every

5. What is the difference ranging from clipping and shielding? define Cohen-Sutherland lie clipping algorithm.

6. Derive the matrix for oblique projection of point x, y, z on x, y plan.

part D Marks: nine every

7. Elucidate the pointers method of removing hidden surfaces from an object.

8. What is Shading Model? Differentiate ranging from gourd and phong shading.

part E Marks: two every

9.
(a) What is Halftoning technique?
(b) List 5 hidden line removal algorithms.
(c) What is the objective of warn model?
(d) What are the applications of differential scaling?
(e) Define Shearing.
(f) What is the need of projections?
(g) List 5 methods for polygon clipping.
(h) Write a routine to clip an ellipse against a rectangular window.
(i) Write f formula for translation in homogenous form.
(j) What are the uses of data gloves?
(k) What are Workstations?
(l) List the important properties of voice systems.

Earning:   Approval pending.