Page 111 - DCAP504_Computer Graphics

Computer Graphics

7.8 Review Questions

1. “Zooming is a technique where the size of the object can be changed to view the object in detail.”
Explain.
2. “With the improvement in technology, 3-D and other graphic types have become common, but
still 2-D is widely used.” Discuss.
3. Discuss panning process in detail.

4. “The zone of the monitor screen within which a selected object is viewed is known as a viewport.”
Explain.
5. “A window should be described in feet or meters or miles or in any length dimension horizontally
and vertically.” Justify
6. “Graphic pipeline is defined as a series of stages which helps a user to create a digital image of a
model.” Discuss.
7. “The process of transforming a two-dimensional world coordinate to device coordinate is known
as window to viewport mapping.” Explain.
8. Discuss the window-to-viewport relationship with the help of an example.
9. “Zooming is a technique where the size of the object can be changed to view the object in detail.”
Discuss.

10. Discuss the different stages of a graphic pipeline.
11. “Mapping of object should be achieved in equal ratio.” Justify.
12. ”The panning technique does not have any rule.” Discuss.
Answers: Self Assessment

1. (a) False (b) True (c) True (d) True (e) True (f) False
2. (a) Zooming (b) Screen (c) Semantic zooming (d) ZUI (e) Vector
3. (a) Rasterization (b) Panning (c) Parameter interpolation (d) Motif (e) Window
7.9 Further Readings

N Krishnamurty, Introduction to Computer Graphics, Tata Mc Graw Hill
Malay. K. Pakhira, Computer Graphics, Multimedia and Animation
Zhigang Xiang, Roy. A. Plastock, Computer Graphics, Second Edition, Tata Mc GrawHill

http://graphics.stanford.edu/courses/cs448a-01-fall/lectures/lecture2/walk002.html
http://en.wikipedia.org/wiki/Computer_graphics
http://neohumanism.org/2/2-D/2-D_computer_graphics.html

http://ezinearticles.com/?2-D-and-3-D-Computer-Graphics&id=1462411
http://www.allgraphicdesign.com/graphics/comptutergraphics101.html
http://www.graphics.cornell.edu/online/tutorial/
http://www.digital-photography-school.com/mastering-panning-to-photograph-
moving-subjects

http://ezinearticles.com/?Computer-Graphics---The-Graphics-Pipeline&id=3692113

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