Computer Graphics
2D Transformation
Q.

In 2D-translation, a point (x, y) can move to the new position (x’, y’) by using the equation
A.  

x’=x+dx and y’=y+dx

 B.  

x’=x+dx and y’=y+dy

 C.  

X’=x+dy and Y’=y+dx

 D.  

X’=x-dx and y’=y-dy
Similar Questions
1.

A translation is applied to an object by
A.  

Repositioning it along with straight line path

 B.  

Repositioning it along with circular path

 C.  

Only b

 D.  

All of the mentioned
2.

We translate a two-dimensional point by adding
A.  

Translation distances

 B.  

Translation difference

 C.  

X and Y

 D.  

Only a
3.

The translation distances (dx, dy) is called as
A.  

Translation vector

 B.  

Shift vector

 C.  

Both a and b

 D.  

Neither a nor b
4.

In 2D-translation, a point (x, y) can move to the new position (x’, y’) by using the equation
A.  

x’=x+dx and y’=y+dx

 B.  

x’=x+dx and y’=y+dy

 C.  

X’=x+dy and Y’=y+dx

 D.  

X’=x-dx and y’=y-dy
5.

The two-dimensional translation equation in the matrix form is
A.  

P’=P+T

 B.  

P’=P-T

 C.  

P’=P*T

 D.  

P’=p
6.

_________ is a rigid body transformation that moves objects without deformation.
A.  

Rotation

 B.  

Scaling

 C.  

Translation

 D.  

All of the mentioned
7.

A straight line segment is translated by applying the transformation equation
A.  

P’=P+T

 B.  

Dx and Dy

 C.  

P’=P+P

 D.  

Only c
8.

Polygons are translated by adding __________ to the coordinate position of each vertex and the current attribute setting.
A.  

Straight line path

 B.  

Translation vector

 C.  

Differences

 D.  

Only b
9.

To change the position of a circle or ellipse we translate
A.  

Center coordinates

 B.  

Center coordinates and redraw the figure in new location

 C.  

Outline coordinates

 D.  

All of the mentioned
10.

The basic geometric transformations are
A.  

Translation

 B.  

Rotation

 C.  

Scaling

 D.  

All of the mentioned
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