Guru Gobind Singh Indraprastha Vishwavidyalaya 2009-6th Sem B.C.A Computer Application Computer Graphics & Multimedia Application, ester, End Term -, , - Question Paper

_t,_r Bxam Rolf No.)    Exam Roll No. .>ul.Q\!vJ.Vl.lX305

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>" End Term Examination

   _ Sixth Semester [BCA] May-June 2009

_rr Code: BCA-306    Subject: Computer Graphics & Multimedia Application

!Zr Id: 20306    ..... (Batch: 2005 2006)_______

time 3 Hours    ___ _    ______Maximum Marks :75

J    Note. Ql. is compulsory. Internal choice is indicted.    ]

QI Describe in brief any ten parts.    (2.5 x 10=25)

(a) Evolution of multimedia ttt iheir storage devices.

(hi Virtual reality

Analog versus digital display units (dj What is the need for clipping?

Describe aliasing. iff What arc homogeneous coordinates?

(Matrix representation of 2-D scaling (J*J CSG

{if" Importance of primitives in graphics ijf' What is the raster scan display

(kf What is the use of Z coordinate value in representing 3-D object on to 2-D screen?

'{if Differentiate object space versus image space.

UNIT-I

Q2. (a) Describe Bresenhams midpoint algorithm for drawing a circle whose centre is (a, b) and radius 'r\

(b) Differentiate pixel and raster line. In a raster system with a resolution of

1024 by 1024, what is the size of raster needed to store with 4 bit pixel.(6.5+6}

y    ^OR

(a)    Describe merits & demerits of southland-cohn algorithm vis-a-vis cyrus-bcck algorithm for clipping.

(b)    Describe use of Dream Weaver.    (8+4.5)

UNIT-II

(a)    What is the difference between window port and view port? Describe steps to transform the object from window port to view port.

, (b) Show the shape and new position when a square with vertices (0,0), (0,2),

(2,0), (2,2) is rotated by an angle of 45 (anti-clockwise) about*the vertex (2,2).    (6+6.5)

OR

Q5. (a) Reflection can also be achieved through the process of rotation. Show it properly.

(b)    Determine the shape, when a square of unit dimension is rotated by -45 and x-axis scaled by S = 3/2.    (6+6.5)

UNIT-III

Q6. (a) Explain the Octree representation of solid objects.

(b) How can sweep representation method help in creating 3-D models?

Discuss with examples.    (6.5+6)

OR

QT/' Describe the properties of B-spline and Bezier surfaces. Also discuss their

(12.5)

UNIT-IV

Q8. (a) Describe the evolution of multimedia and storage devices.

₍'b) Describe multimedia highway.    _ie- - . ,,

OR    * ⁶)

Q9. fa) Describe application of multimedia in home and office.

(b) Describe virtual reality.

(6.5+6)

Attachment: guru-gobind-singh-indraprastha-vishwavidyalaya-2009-b-c-a-computer-application-37501-1.JPG

Earning:   Approval pending.