Computer Graphics (June – 2014) [IDOL - Old Course | Question Paper]

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B.Sc.IT: Semester – II

[Computer Graphics]

Question Paper (June – 2014) [Old Course]

Time: 3 Hours
Total Marks: 100

N.B.:  (1) All Questions from 1 to 7 are Compulsory.
           (2) Figure To right indicate the marks.

Q.1 Attempt Any Two From The Following Question: (10 Marks)
(A) Explain the functions of Computer Graphics.
(B) Explain Refresh Cathode Ray Tube with neat diagram.
(C) Distinguish between Raster Scan Display & Random Scan Display.

Q.2 Attempt The Following Questions: (15 Marks)
(A) Pasteurize Line AB having end point co-ordinates A (10, 20) & B (20, 12) using DDA Algorithm.
(B) Calculate the pixel position along a straight line AB having end points A(5,5) & B(13,9) using Bresenhan’s Line Drawing Algorithm.
(C) Drive the steps in Midpoint Circle Algorithm.

Q.3 Attempt The Following Questions: (15 Marks)
(A) Give the Matrix representations for the following 3D Transformations.
      (i) Transition
      (ii) Rotation
      (iii) Scaling
      (iv) Reflection
(B) Translate an object ABC with A(1,1), B(3,1) & C(2,3) by 3 units along x-axis & 4 units along y axis.
(C) Scale the triangle ABC as A(2,2), B(4,2), C(3,4) for given values of Sx & Sy.
      SX=2,SY=2.5
      SY=SY=0.5

Q.4 Attempt The Following Questions: (15 Marks)
(A) A rectangle A(2,2), B(5,2), C(5,3) & D(2,3) is rotated by 900 about origin in Anticlockwise direction. Find new co-ordinate of rectangle after rotation.
(B) Find the Mirror Reflection of triangle P(10,50), Q(40,80), & R(10,80) about Line y=2x+4.
(C) Scale an object ABCD with respect to point A by scaling factors Sx=2 & Sy=3 as A(2,1), B(5,1), C(5,3), D(2,3).

Q.5 Attempt The Following Questions: (15 Marks)
(A) Explain Flood Fill Algorithm using 8 Point Connectivity.
(B) Explain Boundary Fill Algorithm using 4 Point Connectivity.
(C) Write a note on Inside-Outside Test.

Q.6 Attempt The Following Questions: (15 Marks)
(A) Develop the Perspective Transformation of an object onto the xy-plane with the Center of projection at (100, 100, -100). What will be the projection of line segment? AB with A(150,250,150) & B(250,350,100)?
(B) State and explain steps of Animation.
(C) Write a note on Key Frame Animation.

Q.7 Attempt The Following Questions: (15 Marks)
(A) Explain Bezier Curves?
(B) What is Animation?

(C) Write a note on Key Frame Animation.

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