Q20.Marks: +2.0UGC NET Paper 2: Computer Science17th June 2023
Which of the following transforms in 2 dimension is used to resize a 2-dimensional object?
1.Translation
2.Rotation
3.Scaling ✓ Correct
4.Shearing
Solution
The correct answer is Scaling
Key Points
Scaling:
Scaling is a geometric transformation that changes the size of a figure or a space, but not its shape.
This transformation can either enlarge (scale up) or reduce (scale down) the dimensions of the object by a specific scale factor.
This is the transform used to resize a 2D object.
Additional Information
Translation:
This is a geometric transformation that moves every point of a figure or a space by the same distance in a given direction. In 2D space, you can think of it as simply sliding the entire object either horizontally, vertically, or both.
Rotation:
Rotation is a transformation that turns a figure or a space around a fixed point, called the center of rotation. The amount of rotation is typically specified in degrees.
Shearing:
Shearing is a transformation that distorts the shape of an object such that the angles between its points are changed, but not their collinearity or incidence relationships. You can think of it as a sort of "skew" transformation, slanting the object in a specific direction while keeping all points along a shear invariant parallel line in their original locations.