quiz-3 CG

Which clipping algorithm is used for polygon clipping?

• Liang–Barsky

• Sutherland Hodgeman

• Both A and B

• None

The Cohen-Sutherland algorithm divides the region into _____ number of spaces.

• 6

• 7

• 8

• 9

Which vertex of the polygon is clipped first in polygon clipping?

• LEFT

• RIGHT

• TOP

• BOTTOM

In line clipping, the portion of line which is _____________ of window is cut and the portion that is _____________ the window is kept.

• outside, inside

• inside, outside

• exact copy, different

• different, an exact copy

How many types of basic polygons are present?

• 4

• 2

• 10

• 5

In Weiler Atherton Clipping Algorithm which of the following is consider to clip a polygon?

• Polygon edges and Window boundaries

• Polygon Vertices

• Polygon Edges

• Window boundaries

You can change the size of an object using _____________.

• shear transformation

• scaling transformation

• reflection transformation

• parallel transformation

A transformation that slants the shape of an object is called the ?

• 3D Rotation

• 3D Reflection

• shear transformation

• transalation

How many types of Transformations there?

• 4

• 5

• 6

• 7

Which of the following are the true Properties of 3-D Transformation?

• Lines are preserved

• Parallelism is preserved

• Proportional distances are preserved

• All of the above