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Posted By: Chones prakash Member Level: Silver Posted Date: 04 Jul 2008
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2007 Bangalore University B.C.A Computer graphics Question paper
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May/June 2007
Computer Graphics
Time : 3 Hours
Max. Marks: 80
SECTION - A
Answer any eight of the questions (8x3=24)
1. How does Interactive graphics display work?
2. Explain the different full styles.
3. Write the DDA line drawing algorithm.
4. Explain shear transformation.
5. What is exterior clipping? Explain.
6. Describe Image Scanners.
7. Explain the gravity field effect.
8. Differentiate between a right handed system and left handed system.
9. Describe the rotational sweep representation.
10. What is order of continuity with respect to curves?
Section B
Answer any four questions: (4x14=56)
11.
a) Discuss the working of a Shadow-mask CRT, with a neat diagram.
b) Describe the working of different types of impact printers.
12.
a) Write the DDA circle algorithm. Illustrate it for a circle with radius 5 and centre (0,0).
b) Explain character attributes and their implementation.
13.
a) Form a 3x3 matrix for the following 2-D composite transformation:
i) Translate the image to the right by 15 units and up by 15 units.
ii) Rotate clockwise by 1800.
iii) Enlarge the image to twice its size.
b) Explain how window to view port transformation can be performed.
14.
a) What are the different types of positioning constraints? Explain.
b) Explain the techniques of polling and Interrupts in Event handling.
15.
a) Discuss the different techniques used in 3-D display.
b) What are octrees? How are they used to represent 3-D objects?
16. Write short notes on:
a. The user interface
b. Keyboard and Mouse
c. Perspective projection.
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