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Computer Graphics Exam Guide

This document contains the marking scheme for a mid-term test in computer graphics. It includes 12 questions worth a total of 50 marks. The questions cover topics such as display file structure, input devices, reasons for the emergence of computer graphics, drawing algorithms like Bresenham's and DDA, pixel and frame buffer concepts, character generation techniques, 2D transformations, monochrome and color displays, and primitive operations. The marking scheme allocates marks for explanations and diagrams for each question.

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192 views3 pages

Computer Graphics Exam Guide

This document contains the marking scheme for a mid-term test in computer graphics. It includes 12 questions worth a total of 50 marks. The questions cover topics such as display file structure, input devices, reasons for the emergence of computer graphics, drawing algorithms like Bresenham's and DDA, pixel and frame buffer concepts, character generation techniques, 2D transformations, monochrome and color displays, and primitive operations. The marking scheme allocates marks for explanations and diagrams for each question.

Uploaded by

Evan Robertson
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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JSPMs Rajarshi Shahu College of Engineering, Tathawde, Pune 33 Department of Information Technology 2011-12 Mid Term Test Marking

g Scheme Class: S.E Date: 07/02/12 Subject: Computer Graphics Max Marks: 50 Time: 9.00 am to 10.30 am Instructions: Draw neat diagrams wherever necessary.
Q1) Explain the concept of display file structure Ans:Explaination with diagram 10 Marks Q2) Draw and explain the following input devices: 1) Trackball 2) Joystick 3) Mouse 4) Light pen System (8M) Ans: 1) 2) 3) 4) Explaination of Explaination of Explaination of Explaination of Trackball with diagram ---2M Joystick with diagram ---2M Mouse with diagram---2M Light Pen with diagram---2M (10M)

OR Q3) Explain why Computer Graphics is emerging as an important field in computer science Ans: Explaination of computer graphics --5M Example ---5M

(10M)

Q4) Write a short notes on: (1)Scanner (2) Digitizer (3) Display file Interpreter (4) Tablets Ans: 1) 2) 3) 4) Explaination of Explaination of Explaination of Explaination of Scanner with diagram ---2M Digitizer with diagram ---2M Display File Interpreter with diagram---2M Tablet with diagram---2M

(8M)

Q5) Explain Bresenhams line drawing algorithm. Using Bresenhams algorithm draw line from (1, 1) to (5, 3) (10M) Ans: 1) Explaination of Bresenhams line drawing algorithm ---6M 2) Drawing line from (1, 1) to (5, 3) ---- 4M

Q6) Explain Raster and Random Scan, Line and Text Style Ans : 1) 2) 3) 4) Explaination of Explaination of Explaination of Explaination of Raster Scan ---2M Random Scan ---2M Line---2M Text---2M

(8M)

OR Q7) Explain DDA line drawing algorithm. Using DDA algorithm draw line from (1, 1) to (5,3) (10M) Ans: 1) Explaination of DDA algorithm ---6M 2) Drawing line from (1, 1) to (5, 3) ---- 4M

Q8) What is pixel? What is the importance of using frame buffer? It is dynamic storage structure? Differentiate between Bresenhams and Vector Generation Algorithm ( (8M) Ans: 1) Explaination of Pixel ---2M 2) Dynamic storage structure-- 2M 3) Differentiate between Bresenhams and Vector Generation Algorithm 4M

Q9) Explain the following character generation techniques (1)Stroke Method (2) Starburst Method (3) Bitmap Method Ans : 1) Explaination of Stroke Method ---3M 2) Explaination of Starburst Method ---3M 3) Explaination of Bitmap Method----2M

(8M)

Q10) Explain w.r.t.2D transformation (1)Scaling (2) Rotation (3) Translation Ans : 1) Explaination of Scaling Technique ---3M 2) Explaination of Rotation Technique ----3M 3) Explaination of Translation Technique ---2M

(8M)

OR Q11) With neat diagram explain the concept of Monochrome and Color display Monitor Ans : 1) Explaination of Monochrome Display ---4M 2) Explaination of Colour Dia Technique ----3M

(8M)

Q12) Explain Primitive Operation Ans: Explanation of Primitive Operation with diagram -----8M

(8M)

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