Question

Which transformation distorts the shape of an object such that the transformed shape appears as if the object were composed of internal layers that had been caused to slide over each other?

(a) Rotation

(b) Scaling up

(c) Scaling down

(d) Shearing

This question was addressed to me in an interview for job.

My question comes from Composite 2D Transformations topic in chapter 2D Transformation and Viewing of Computer Graphics

Answer 1

Right answer is (d) Shearing

To explain: Two common shearing transformations are the type of transformation that shift coordinate x values coordinate y values. In shear transformation, the transformed shape appears as if the object were composed of internal layers that had been caused to slide over each other.