M.C.A. (Semester IV) (CBCS) Examination Nov/Dec-2018
Science
COMPUTER GRAPHICS
Time: 2½ Hours Max. Marks: 70
Instructions: Question No. 1 and 2 are compulsory.
Attempt any 3 questions from Q. no. 3 to Q. no. 7.
Figures to the right indicate full marks.
Q.1 Choose correct alternatives. 10
Smallest size object that can be displayed on a monitor is called
Picture element Point
Dot Pitch Aspect ratio
refers to pixel spacing.
Pixmap Resolution
Pixel depth Persistence
The purpose of refreshing a CRT is
To avoid flickering To maintain steady picture
To avoid fading of pixels All of these
is responsible for accessing the frame buffer to refresh the
screen.
Graphics package Video controller
CPU Monitor
The basic transformations include
Translation Rotation
Scaling All of these
The transformation in which an object is moved from one position to
another in circular path around a specified pivot point is called
Rotation Shearing
Translation Scaling
GKS stands for
Graphics Kernel Skill Graphics Kernel System
General Kernel Software General Kernel System
In graphics applications, a rectangular area in which text or graphics can
appear is known as
Circle Ellipse
Frame Box
The process of displaying 3D into a 2D display unit is known as
Rotation Projection
Segment GKS
10) is the method of cutting a graphics display to neatly fit a
predefined graphics region or the view port
Line Drawing Scanning
Clipping Paging
Page 2 of 2
SLR-SN-24
State whether true or false. 04
Random scan is a method in which the display is made by the electronic
beam which is directed only to the points or part of the screen where the
picture is to be drawn.
Translation is the process of changing the position of an object in a
straight-line path from one coordinate location to another.
In graphics applications, a rectangular area in which text or graphics can
appear is known as Frame.
Coordinates in the viewpoint are known as world coordinates.
Q.2 Write short notes on the following. 08
Graphics software standards.
Raster Scan Display
Answer the following. 06
What is frame buffer?
Describe the concept of clipping.
Q.3 Answer the following. 14
Explain homogeneous transformation in detail.
Explain various applications of computer graphics.
Q.4 Answer the following. 14
Explain Bresnham's line generation algorithm.
Distinguish between random scan display and raster scan display.
Q.5 Answer the following. 14
Explain Cohan Sutherland line clipping algorithm
What is projection? Explain in detail.
Q.6 Answer the following. 14
Write the properties of Bezier curve giving their usefulness.
What are the steps involved in 3D transformation?
Q.7 Answer the following. 14
Explain the concept of segments and segment table in computer graphics.
Explain line and area fill attributes of output primitives.