Download AKTU B-Tech 4th Sem 2014-15 Computer Graphics Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 4th Semester (Fourth Semester) 2014-15 Computer Graphics Question Paper

Printed Pages : 2
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(Fo?qwlng Paper ID and Roll No. to be ?lled in your Answer Book)
PAPER ID : 110411
Roll No.
B. Tech.
(SEM. IV) THEORY EXAMNATION, 2014?15
COMPUTER GRAPHICS
Time : 2 Hours] [Total Marks : 50
Note : Attempt all questions.
1 Answer any two parts of the following : . 6X2==12
(a) Write merit and demerits of LCD (Liquid Crystal
DiSPIay)
(b) If base address of a frame buffer is 100 and
screen size is (15 inch X 19 inch) with resolution
is 13 dpi (dot per inch) calculate the memory
location where the coordinate of pixels are store.
(1) Pixel P1 at A (200, 25)
, (1i) Pixel 92 at B(75, 45)
(.0) Calculate value of pixels; which is scan converted
by DDA algorithm and end point of line is'(4,4)
and (-3,0). ?
110411] I 1 [ Contd...

2 Attempt any two of the following : 6X2=12
(a) Write Bresenhams algorithm of line and explain.
(b) Explain the Sutherland-Cohen line clipping
algorithm.
(c) Differentiate?between Raster and Vector Grap '"s.
3 Answer any two parts of the following : 6X2=12
(a) Explain Phong and Warn model for illumination.
(b) Let P0(0, 0), P1(1, 2), P2(2, 1), P3 (3, 1),
P4 (4, 10) and P5 (5, 5) be given data control
points. If interpolation based on Bezier curve is
used to ?nd a curve interpolating these data
points. Find parametn'c midpoint of the gradient
and also calculate coordinate of parametric quaniles
of the curve.
(c) Explain various types of quadratic surfaces with
their equation and blobby objects.
4 Answer any two parts of the following : I 7 X2=14
(a) What do you understand by the term
"Concatenation of tmnsfonnations" ? What are its
advantages 7 If A and B are two di??erent
transfonnations, illustrate 'with suitable example
that A ' B at B ' A.
(b) Apply the Liang-Barsky to clip the line segment
, from A (3,7) to B (8,10) against the regular
rectangular window P (1,2), Q (9,2), R (9,8) and
s (1,8) -
(0) Explain mideint circle algorithm.
110411] 2 ? [12700]