Bangalore University 2007 B.C.A Computer Application COMPUTER GRAPHICS - Question Paper

IV Sem BCA
Time : three Hours
Computer Graphics
Max. Marks: 80

part - A

ans any 8 of the ques. (8x3=24)

1. define Raster Scan displays.

2. Write the DDA circle drawing algorithm.

3. elaborate the various line attributes?

4. discuss shear transformation.

5. What is exterior clipping?

6. define any 3 segment attributes.

7. discuss Gravity field effect.

8. What is perspective projection? discuss.

9. provide the concept of polygon tables.

10. define union, intersection and difference operation in constructive slid geometry methods.

part - B

ans any 4 ques.. every ques. carries fourteen marks. (4x14=56)

11.
a) With a neat diagram discuss the working of a shadow-mask CRT.
b) define any 2 hard copy devices.

12.
a) Illustrate the Bresenham's line algorithm for a line with end points (30,10) and (40,18).
b) define scan-line algorithm for Area-fill.

13.
a) define the matrix formulation of 2-D transformations; translation, rotation and scaling.
b) explain Cohen-Sutherland algorithm for line clipping.

14.
a) discuss pointing and selection techniques.
b) discuss the various input modes used in interactive computer graphics.

15.
a) define 3-D rotation about x, y and z axes and write the corresponding transformation matrices.
b) discuss the various kinds of sweep representation.

16. Write notes on:
a) User interface b) Octrees.

Earning:   Approval pending.