UGC NET CSE | December 2013 | Part 3 | Question: 66

Question

What steps shall be required to rotate an object from point $P_1$ (as shown in fig. 1) and its placement such that what was at $P_1$ is now reduced and is at $P_2$ (as shown in fig. 2)?

1. Translate $P_1$ to origin
2. Scale as required
3. Rotate
4. Translate to the final position $P_2$
   • A. I, II and III
   • B. II, III and IV
   • C. I, III and IV
   • D. All of the above

Answer 1

Option D

it is composite transformation . since we have to do operations based on p1 so translate point p1 to origin

step1: translate point p1 to origin

step2: Rotate 

step 3: scale

step 4: translate to p2

Comments

@Deepthi_ts I think u r wrong here.

Because we don't need to change the shape of the object here. Therefore, we don't need to scale.

But yes I, III and IV are required for this.