# Download JNTUH MCA 4th Sem R13 2017 August 814AW Computer Graphics Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 4th Sem (Fourth Semester) Regulation-R13 2017 August 814AW Computer Graphics Previous Question Paper

R13

Code No: 814AW

MCA IV Semester Examinations, August - 2017

COMPUTER GRAPHICS

Time: 3 Hours

Max. Marks: 60

Note: This question paper contains two parts A and B.

Part A is compulsory which carries 20 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question carries
8 marks and may have a, b, c as sub questions.

PART - A

5 ? 4 Marks = 20

1.a)

Describe the working of raster scan Systems.

[4]

b)

Explain about the homogeneous coordinate system.

[4]

c)

Give the properties of B-Spline curves.

[4]

d)

[4]

e)

What are the advantages of BSP Tree methods?

[4]

PART - B

5 ? 8 Marks = 40

2.

Consider a raster display system with resolution of 600 by 300. How many pixels could be
accessed per second by a display controller that refreshes the screen at the rate of 80
frames per second?

[8]

OR

3.

Describe briefly Bresenham's circle drawing algorithm with an example. Why do we
prefer incremental algorithm over DDA?

[8]

4.

Clip a line segment between points (1, 3) to (5, 17) using Cohen Sutherland
clipping algorithm so that it fit into view port with left bottom at (2, 5) and right top at
(5, 12).

[8]

OR

5.

What are the steps involved in reflecting the object about an arbitrary axis using 2-D
transformations?

[8]

6 .

How are periodic B-spline curves different from non-periodic B-spline curves? [8]

OR

7.

Given control points (10,100), (50,100), (70,120) and (100,150). Calculate coordinates of
any four points lying on the corresponding Beizer curve.

[8]

8.

Explain how the issues involved in rotation and reflection are different in 3-D from 2-D.
Give a detailed note.

[8]

OR

9.

Derive the transformation matrix for perspective projection.

[8]

10.

What are key frames? Write about morping.

[8]

OR

11.