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Wednesday, June 24, 2009

M.Sc I-Semester Examination 2007 Osmania University M.Sc Computer Science Computer Graphics Question paper


Faculty of Science
M.Sc I-Semester Examination Nov./Dec 2007
COMPUTER SCIENCE



Computer Graphics Maximum Marks : 80
*******************************************************************

Section A (Marks 8 X 4 = 32)
*****************************

1. Explain about Raster scan display.
2. Write short notes on boundary fill method.
3. write about line attributes.
4. Explain briefly about reflection transformation.
5. Define window, viewport and viewing transformation.
6. Write short notes on Weiler-Atherton Plygon CLipping.
7. Write about interpolation and approximation of splines.
8. Write short notes on depth buffer method.

Section B (Marks: 4 X 12 = 48)
********************************

9. (a) (i) Explain Bresenham's line algorithm.
(ii) Write about different types of graphic software.

(OR)

(b) (i) Write and explain midpoint circle algorithm.
(ii) Write about modelling coordinates, world coordinates, device coordinates and normalized device coordinates.

10. (a) (i) Write shor notes on composite transformation.
(ii) Show that two successive rotations about origin in 2-D is additive and commutative.

(OR)

(b) (i) Derive transformation matrix in 2-D for rotation about a pivot point.
(ii)Define shear transformation. Write transformation matrices for x-shear and y-shear about the line y=0 and x=0

respectively.

11. (a) Explain Cohen-Sutherland line clipping method.

(OR)

(b) Explain Sutherland-Hodgeman plygon clipping method.

12. (a) Explain the steps used to obtain transformation matrix for rotation about an arbitrary axis in 3-D.

(OR)
(b) Write short notes on the following :-
(i) Parallel and perspective projections
(ii) Visible surface detection
(iii) Depth sorting method.

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