A 10000CS401122002 Pages: 3

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Regular and Supplementary Examination December 2021 (2015 Scheme)

Course Code: CS401
Course Name: COMPUTER GRAPHICS

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 4 marks. Marks
1 Describe the working of a simple random scan display system with suitable 7
diagram.
2 For what purpose we use the non-zero winding number rule? How is it used ? (4
)
Illustrate with an example.
3 Rasterize the line segment from pixel coordinate (10, 12) to (15, 15) using 4
(4)
Bresenham’s line drawing algorithm.
4 What do you understand by homogeneous coordinate system? What is its 7
significance?
5 Consider a line from 21 to P2 and an arbitrary point P on the line. Prove that

after performing some translation the translated P is on the line between the (4)

translations of 21 and P2.

6 Show how plane equations are used to identify the position of spatial points 5
(4)
relative to the plane surface of an object.
7 Distinguish between parallel and perspective projections. (4)
8 Explain about Orthogonal projections and its types with examples. (4)
9
2 1 2 3 2
3 2 2 | + | 3
1 3 5 |“ | 3
3 4 5 | ° | 7 (4)
2 2 | ° | 7 | ° |

Given a simple image as shown above. Write its frequency table and draw the

histogram.

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