Bangalore University 2006 B.C.A Computer Application Computer Graphics - Question Paper

IV Sem B.C.A
May/June 2006
Computer Graphics
Time : three Hours
Max. Marks: 80
part - A
ans any 8 of the questions (8x3=24)

1. How do the Raster-scan monitors function.

2. define the various criteria needed to generate a straight line.

3. discuss any 3 text attributes.

4. discuss shear transformation.

5. define the various kinds of text clipping.

6. discuss any 3 segment attributes.

7. discuss keyboard as an input device.

8. discuss the concept of multiple selection.

9. define the order of continuity with respect to curves.

10. elaborate the characteristics of hidden surface or hidden line elimination?

part - B

ans any 4 questions: (4x14=56)
11.
a) discuss the working of CRT with suitable illustration.

b) define plotters and their applications.

12.
a) discuss Bresenham's circle algorithm with an example.

b) How are colour and grayscale levels displayed? discuss.

13.
a) Derive a matrix representation for translation, scaling and rotation for 2-dimentional transformation.

b) discuss Sutherland and Hodgman algorithm for polygon clipping.

14.
a) discuss pointing and selection techniques
b) discuss the techniques of polling and interrupts in event handling.

15.
a) elaborate the polygon surfaces and polygon tables? discuss.

b) discuss the Depth Buffer Method for hidden surface removal.

16.Write short notes on:
a) Octress

b) Rubber Band Method

c) Perspective Projection.

Earning:   Approval pending.