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Aim

Theory

Objective

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Transformations: Rotation

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Beginner

Intermediate

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1. What is the primary purpose of a rotation transformation in computer graphics?

a: To stretch graphical objects Explanation

Explanation

b: To change the color of objects Explanation

Explanation

c: To describe the motion of a rigid body around a fixed point Explanation

Explanation

d: To translate objects along an axis Explanation

Explanation

2. What does a rotation matrix represent in the context of computer graphics?

a: A matrix for resizing objects Explanation

Explanation

b: A matrix for translating objects Explanation

Explanation

c: A matrix for rotating points Explanation

Explanation

d: A matrix for changing the color of objects Explanation

Explanation

3. What does the rotation matrix for rotating about the Z-axis look like?

Explanation

4. How can rotations be performed about an arbitrary axis in computer graphics?

a: Directly using the standard rotation matrix Explanation

Explanation

b: By applying multiple translations Explanation

Explanation

c: By using a combination of rotations about the coordinate axes Explanation

Explanation

d: By changing the color of the axis Explanation

Explanation

5. Why is translation necessary when rotating about a specific point?

a: To change the color of points Explanation

Explanation

b: To simplify the rotation process Explanation

Explanation

c: To rotate points about an arbitrary axis Explanation

Explanation

d: To bring the point to the origin before rotation Explanation

Explanation

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