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Arya Institute of Eng. & Tech. COMPUTER GRAPHICS AND MULTIMEDIA TECHNIQUES LAB (7CS7)
EXPERIMENT - 1 Objective:- WAP To produce a single pixel and pre specified pattern on screen
S.NO. 1. What is Pixel?
Viva Questions
2.
What is Bitmap?
3.
What is Frame Buffer?
4.
How many Bits use in Bitmap?
5.
What is Pixmap?
6.
How many Bits use in Pixmap?
7.
The size of a 640*480 image at 240 pixels per inch is ?
8.
What is Sampling Frequency?
9.
Mention the two software standards?
10. 11.
How much A pixel of black-white image or graphic Objective take space in memory? Define digitizers?
12.
What is Aspect ratio?
13.
What is The Resolution of an Image?
14.
What is the Refresh Rate of Flicker?
15.
What is the Anti aliasing ?
EXPERIMENT - 2 Objective:- WAP To implement features like changing background color, fore ground color, resizing window, repositioning of window.
S.NO.
Viva Questions
1.
What is Clipping?
2.
What is the difference between Raster scan and random scan?
3.
What is vertical retrace of the electron beam?
4.
What is scan conversion?
5.
Give three difference between shadows mask & beam penetration method?
6.
What is Aspect ratio?
7.
Which are the two techniques for producing color displays with a CRT ?
8.
Difference between View & Window Port?
9.
What is Horizontal retrace of the electron beam?
10.
What is The Resolution of an Image?
11.
Explain input device?
12.
What is meant by frame buffer?
13.
Define electrostatics device?
14.
Explain the advantages and disadvantages of DVST?
15.
Explain about PHIGS workstation?
EXPERIMENT - 3 Objective:- Write a Program to implement Bresenham’s Line algorithm
S.NO.
Viva Questions
1.
What are the Advantages of Bresenhem’s Algorithm?
2. 3.
What is The value of initial decision parameter in bresenham’s line drawing algorithm for │m│<1 ? What is the Refresh Rate of Flicker?
4.
What is Flickering?
5. 6.
The transformation that changes the coordinate position of an Objective along a straight line path is called? The transformation that enhances or reduces the size of Objective is called?
7.
What is scan conversion?
8.
What are the Coordinates Points represented by pixel for both P1(3.2 ,7.8) and P2(3.4,7.6) ?
9. 10.
Which is The best line drawing algorithm among all possible line drawing algorithm ? If an image has a height of 2 inches and aspect ratio of 1.5 then its width is?
11.
Explain the working principle of CRT?
12.
Explain about the various application of computer graphics?
13.
What are the various attributes of a line?
14.
Difference Between DVST and CRT Monitors?
15.
What is Transformation?
EXPERIMENT - 4 Objective:- Write a Program to implement DDA Line algorithm.
S.NO.
Viva Questions
1.
What are the merits of DDA line drawing algorithm?
2.
What is run length encoding?
3.
What is the need of homogeneous coordinates?
4.
What are the various attributes of a line?
5.
What are the demerits of DDA line drawing algorithm?
6.
What is Translation?
7.
Which is the best method for Line Clipping?
8. 9.
Explain the four bits which is use in Cohren-Sutherland line clipping Algorithm? Draw a line Between (0,0) to (6,7) using DDA Algorithm?
10.
Difference Between DVST and CRT Monitors?
11.
What is Flickering?
12.
What is the Refresh Rate of Flicker?
13.
Explain the different type of anti aliasing techniques?
14.
What is Depth Buffer Method?
15.
What is computer graphics?
EXPERIMENT -5 Objective:- Write a Program to implement midpoint circle algorithm.
S.NO. Viva Questions 1. Define Circle? 2. What is The result of two successive 2D rotations R(Q1) and R(Q2) ? 3. What is the Rotation? 4. A point (4,3) is rotated counterclockwise by an angle of 45°Find the rotation matrix and the resultant point. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
Let R be the radius of circle .What is The angle subtended by an arc of length R at the centre of circle ? What is The value of initial decision parameter in mid point circle drawing algorithm? How much A pixel of color image or graphic Objective takes space in memory? What is fixed point scaling? Which is The best circle drawing algorithm among all possible circle drawing algorithm ? What is the Anti aliasing ? What is Ray Tracing? What is use of A-buffer method? What is Back face Detection method? What is Animation? What are the limitations of Back face detection Method?
EXPERIMENT - 6 Objective:- Write a Program to fill an ellipse.
S.NO.
Viva Questions
1.
What is mid point ellipse algorithm?
2.
Define Ellipse?
3.
What is boundary fill Algorithm?
4.
What is flood fill Algorithm?
5.
Difference Between Boundary fill & Flood fill Algorithm?
6.
Which are the two techniques use in Boundary Fill Algorithm?
7.
Write the Ellipse Generating Algorithm?
8.
Give the function for displaying a filled Ellipse in a Experiment .
9.
What is initial Decision parameter For Ellipse?
10.
Which parameters use to create a Ellipse?
11.
What is the use of pie slice function ?
12.
What is Objective Space Method?
13.
Give the concept of polygon tables?
14.
Describe any two hard copy devices?
15.
Describe 3-D rotation about x, y and z axes and write the corresponding transformation matrices?
EXPERIMENT - 7 Objective:- Write a Program to fill a polygon.
S.NO.
Viva Questions
1.
Explain about scan line polygon fill algorithm?
2.
What is Polygon Clipping?
3.
What is Sutherland-Hodgeman Polygon Clipping Algorithm?
4.
What is Wailer-Atherton polygon clipping Algorithm?
5. 6.
Difference Between Sutherland-Hodgeman & Wailer-Atherton polygon clipping Algorithm? What is Depth Buffer Method?
7.
What are the limitations of Depth Buffer Method ?
8.
Give the function for displaying a filled Polygon in a Experiment .
9.
Which parameters use to create a Polygon?
10.
What is Scan-line based Algorithm?
11.
Describe the matrix formulation of 2-D transformations; translation?
12.
Explain the merits and demerits of Penetration techniques?
13.
Can you list at least three important applications of computer graphics?
14.
Describe the matrix formulation of 2-D transformations; rotation ?
15.
Describe the matrix formulation of 2-D transformations; scaling?
EXPERIMENT - 08 Objective:- Write a Program to implement Cohen Sutherland algorithm.
S.NO. 1.
Viva Questions
2.
Explain the four bits which is use in Cohen-Sutherland line clipping Algorithm? Explain the working principal of Cohen Sutherland algorithm?
3.
Distinguish Window & View Port?
4.
What is Clipping?
5.
7.
If an image has a height of 2 inches and aspect ratio of 1.5 then its width is? If we take mirror reflection of a point(x, y) along x-axis and the position of point after mirror reflection is denoted by (x’, y’), then value of x’ and y’? Explain the different type of anti aliasing techniques?
8.
What are the various attributes of a line?
9. 10.
How many bits store in memory for a pixel of gray-scale image or graphic Objective ? Which Display System commonly used Shadow-mask methods ?
