Virtual Labs

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Aim

Theory

Objective

Pretest

Procedure

Simulation

Posttest

References

Feedback

Points & Co-ordinate Systems

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Beginner

Intermediate

Advanced

1. What does the point (3,4) represent in a 2D coordinate system?

a: 3 units from the x-axis and 4 units from the y-axis. Explanation

Explanation

b: 4 units from the x-axis and 3 units from the y-axis. Explanation

Explanation

c: A point on the origin. Explanation

Explanation

d: A point outside the coordinate system. Explanation

Explanation

2. How are three-dimensional points represented in a coordinate system?

a: As distances from each of the three planes formed by the axes. Explanation

Explanation

b: As distances from the x and y axes only. Explanation

Explanation

c: As distances from the origin. Explanation

Explanation

d: As distances from the xy-plane. Explanation

Explanation

3. What happens when you modify the homogeneous coordinate (x, y, z, w) by changing the value of w?

a: It changes the point's color. Explanation

Explanation

b: It scales the point's coordinates. Explanation

Explanation

c: It rotates the point. Explanation

Explanation

d: It translates the point. Explanation

Explanation

4. What is the purpose of homogenizing coordinates in computer graphics?

a: To simplify point representation. Explanation

Explanation

b: To enable efficient point rendering. Explanation

Explanation

c: To allow for linear operations like translation. Explanation

Explanation

d: To increase the dimensionality of points. Explanation

Explanation

5. What is the significance of modifying the origin and axis directions in a coordinate system?

a: It changes the color of points. Explanation

Explanation

b: It only affects the display, not the actual coordinates. Explanation

Explanation

c: It alters how points are represented and calculated. Explanation

Explanation

d: It has no impact on point representation. Explanation

Explanation

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