Perform window to viewport transformation for the point Assume that

2018

Perform window to viewport transformation for the point (20, 15). Assume that (Xwmin, Ywmin) is (0,0); (Xwmax, Ywmax) is (100,100); (Xvmin, Yvmin) is (5,5); (Xvmax, Yvmax) is (20,20). The value of x and y in the viewport is

  1. A.

    x = 4 , y = 4

  2. B.

    x = 3 , y = 3

  3. C.

    x = 8 , y = 7.25

  4. D.

    x = 3 , y = 4

Attempted by 10 students.

Show answer & explanation

Correct answer: C

Use the window-to-viewport transformation formulas. For x-coordinate: xv = 5 + (20 - 0) * ((20 - 5) / (100 - 0)) = 8. For y-coordinate: yv = 5 + (15 - 0) * ((20 - 5) / (100 - 0)) = 7.25. The resulting viewport coordinates are (8, 7.25).

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