Bhavnagar University 2007 B.Sc Computer Technology COMPUTER GRAPHIC DESIGN - Question Paper

COMPUTER GRAPHIC DESIGN


First ques. is Compulsory

ans any 4 from the remaining ques.

All ques. carry equal marks

ans all parts of any ques. at 1 place

1. discuss the following:
a) Pixel Addressing
b) Homogeneous Coordinates
c) Graphics Work stations
d) GUI?
e) Antialiasing?
f) View port?
g) Blending functions of Bezier curves?

2. a) define the working of a CRT.

b) elaborate the differences ranging from the raster scan and random scan devices?

3. a) define the Bresenham’s line drawing algorithm for all quadrants.

b) discuss how the Bresenham's line drawing algorithm works for the line joining the points (-2, 3) and (5, 6).

4. a) define Cohen - Sutherland algorithm for line clipping.

b) define the Sutherland - Hodgaman algorithm for polygon clipping.

5. a) define the matrix forms of the 2 dimensional transformations of translation, rotation and scaling.

b) Derive the transformation matrix for finding the reflection of a point with respect to the Line y= mx + c.

6. define different graphic input devices explaining their logical functions define the methods for character generation.

7. a) define the 3D transformations for rotation, scaling and translation.

b) obtain the combined matrix transformation of the following:
3D rotation of an object by a degrees around X-axis followed by a 3D rotation of ß degrees around Y axis. which in turn is translated with a units along X-axis, b units along Y-axis c units along Z-axis.

8. a) How are surfaces generated in computer graphics ? discuss.

b) Derive the matrix transformation for standard perspective projection

Earning:   Approval pending.