1.

The polygons are scaled by applying the following transformation.(a) X’=x * Sx + Xf(1-Sx) and Y’=y * Sy + Yf(1-Sy)(b) X’=x * Sx + Xf(1+Sx) and Y’=y * Sy + Yf(1+Sy)(c) X’=x * Sx + Xf(1-Sx) and Y’=y * Sy – Yf(1-Sy)(d) X’=x * Sx * Xf(1-Sx) and Y’=y * Sy * Yf(1-Sy)The question was asked in exam.My question is from 2D Scaling topic in chapter 2D Transformation and Viewing of Computer Graphics

Answer»

Correct choice is (a) X’=x * Sx + Xf(1-Sx) and Y’=y * SY + YF(1-Sy)

The explanation is: The POLYGONS are scaled by applying the TRANSFORMATION X’=x * Sx + Xf(1-Sx) and Y’=y * Sy + Yf(1-Sy).



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