Madras University (UnOM) 2006 B.C.A Computer Application Computer graphics - exam paper

PART A - (10 x three = 30 marks)



ans any TEN ques..

All ques. carry equal marks.

every ans should not exceed 50 words.



1. List any 3 video display devices.



2. define the role of keyboard on a graphics

system.



3.Write about PRIGS.



4. explain line kinds available as line attributes.



5. List out any 3 character attributes.



6. describe the transformation scaling in two dimensions.



7. Write a note on : two dimensional viewing pipeline.



8. describe clipping. provide an example.



9. provide the logical classification of input devices.



10. What is meant by parallel projection?



11. Define: three dimensional translation.



12. Write a note on: the back-face detection method.





PART B - (5 x six = 30 marks)



ans any 5 ques..

All ques. carry equal marks.

every ans should not exceed 200 words.



13. Write a note on hard copy devices.



14. Write and discuss DDA line drawing algorithm.



15. List and discuss area-fill attributes.



16. find the matrix corresponding to two

dimensional rotation.



17. discuss the benefit of interactive picture construction

techniques by giving 1 such method.



18. discuss the transformation from world to viewing

coordinates.



19. discuss three dimensional reflection through an example.



PART C - (4 x 10 = 40 marks)



ans any 4 ques..

All ques. carry equal marks.

every ans should not exceed 500 words.



20. Write and discuss midpoint circle generating algorithm.

provide an example.



21. Write a detailed note on colour and grayscale levels.



22. discuss the concept of composite transformation for

representing any provided transformation as composite of standard

transformation.



23. Write and discuss Cohen - Sutherland line clipping algorithm.





24. Write a detailed note on three-dimensional display methods.



25. Write and discuss the depth-buffer method for hidden surface

detection.

Earning:   Approval pending.