Computer Graphics

Which of the following is not a rigid body transformation?

• Translation

• Rotation

• Shear

• Scaling

------- values for rotation angle define clockwise rotation

• Positive

• Negative

• Zero

• Complex

When Sx and Sy are assigned the same value, which type of scaling is produced?

• Uniform scaling

• Differential scaling

• a and b

• None

Homogeneous coordinates are represented in the form

• (x,y)

• (xh,yh)

• (xh,yh,1)

• None

Two successive scalings are -------------

• Additive

• Subtractive

• Multiplicative

• Divisive

A transformation that produces a mirror image of an object

• Scaling

• Reflection

• Shear

• Translation

A world coordinate area selected for display is called a ---------------

• Window

• Viewport

• Clip window

• View map

Which of the following is not a parallel projection?

• Top

• Side

• Front

• View

Which of the following is a line clipping algorithm?

• Cohen Sutherland algorithm

• Sutherland Hodgeman

• Both A and B

• None of the above

Area clipping is also called

• Point clipping

• Line clipping

• Polygon clipping

• Text clipping