unit2_Computer Graphics MCQs

Which type of clipping is used to remove parts of a line outside the viewing window?

• Polygon Clipping

• Line Clipping

• Curve Clipping

• Text Clipping

What is windowing in computer graphics?

• Dividing the screen into multiple panels

• Displaying only the part of the scene inside a specified region

• Setting the size of the application window

• Enabling drag-and-drop functionality

Which of the following is NOT a line clipping algorithm?

• Cohen-Sutherland

• Liang-Barsky

• Bresenham’s Algorithm

• Midpoint Subdivision

The Cohen-Sutherland algorithm divides the space into how many regions?

• 2

• 4

• 6

• 9

Which parameter is used in the Liang-Barsky algorithm to clip lines?

• Direction cosines

• Parametric equations

• Cartesian coordinates

• Slope-intercept form

The Midpoint Subdivision method works by:

• Iteratively halving the line segment

• Using slope equations

• Dividing polygons into triangles

• Calculating line intersections

In Midpoint Subdivision, what is the termination condition?

• Line is completely outside the window

• Line segment becomes very small

• Line intersects the window diagonals

• None of the above

What is the main purpose of clipping in computer graphics?

• To hide objects outside a certain boundary

• To zoom into objects

• To adjust object color

• To change the object orientation

The Sutherland-Hodgeman algorithm is primarily used for:

• Line Clipping

• Polygon Clipping

• Text Clipping

• Curve Clipping

What happens to a vertex inside the clipping window in the Sutherland-Hodgeman algorithm?

• It is discarded

• It is added to the output list

• It is divided into sub-vertices

• It is projected onto the edges