Rearrange steps involved in two dimensional viewing transformation. I. Map…
2021
Rearrange steps involved in two dimensional viewing transformation. I. Map normalized viewport to device co-ordinates II. Convert world co-ordinates to viewing co-ordinates III. Construct world co-ordinate scene using modeling coordinate transformation IV. Map viewing co-ordinates to normalized viewing co-ordinates using window-viewport specification
- A.
III → II → IV → I
- B.
II → III → IV → I
- C.
I → II → IV → III
- D.
III → II → I → IV
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Correct answer: A
The standard 2D viewing transformation sequence begins with constructing the world scene using modeling coordinate transformations (III). Next, convert world coordinates to viewing coordinates (II), then map viewing coordinates to normalized space via window-viewport specification (IV). Finally, map the normalized viewport to device coordinates (I).