What is a necessary to specify to generate rotation?
Specific distances between dx and dy
Rotation angle ?
Scaling
Repositioning
Correct Answer :
B. Rotation angle ?
In order to rotate an object, we must specify the position of its pivot or pivot angle, either the rotation point or its height, or the magnitude of the rotation, and an angle relative to the pivot.
Related Questions
With reference to Random Scan Display, which of the following options is correct?
It has an electron beam that directed only to the screen areas where any picture has to be displayed.
It has a good pixel amount.
It's ideal for line drawing.
All of the above mentioned.
Which of the following methods is the fastest pixel position calculating method?
Bressenham's line algorithm
DDA line algorithm
Mid-point algorithm
None of the above
In which of the following parts of the cathode ray tube, is a huge amount of heat released to the cathode by directing a current through a coil of wire?
Electron gun
Phosphorus coated tube
Filament
Anode and cathode
A graphic systems core hardware components are,
Display Processor and CPU
Output device and Input
Display devices, recorder
None of above mentioned
What value of the rotation angle rotates the object in clockwise direction?
Positive Value
Negative value
Value less than 180 degree
All of the above
The inside of the Cathode Ray Tube is coated with what material?
Fluorescent powder
No coating
Phosphorus
None of the above
In ___ a beam of an electron is moved across the screen. It moves from top to bottom considering one row at a time.
Raster Scan Display
Random Scan Display
Both A and B
None of the above mentioned
___ is a rigid body transformation that enables an entity to shift without deforming.
Rotation
Translation
Only B
None of the above
In which of the following transformation methods of Computer Graphics is the Shape of the Object not deformed?
Translation
Shearing
Both a. and b.
None of the above
In a graphics system, the most prominent output device is,
VDU (Visual Display Unit)
Printer
Joystick
None of the above mentioned
A beam of electron moves through each row, its intensity is alternatively turned ___ which helps to create a pattern of spots that are illuminated.
On and off
Power interrupt
Up and down
All of the above mentioned
Which of the following are true with respect to the Window Port in computer graphics?
It represents real world coordinate system.
A window port can be defined with the help of a GWINDOW statement.
Window port is the coordinate area specially selected for the display.
All of the above
Which among the following are the types of scanning or travelling of beam in a raster scan display technique?
Interlaced Scanning
Non- Interlaced Scanning
Spiral Scanning
All of the Above
Raster scan systems generally use ___ to display an image.
Frame buffer
Display controller
Display file program
None of the These
Which of the following sentence used in application software to specify line-type attributes?
SETLINE ()
SETLINE TYPE (lt)
Both of the above mentioned
None of the above mentioned
The transformation of the entity in relation to an axis is called the reflection image.
Reflection
Translation
Only A
Only B
Which part of the CRT contains cathode?
Focusing system
Electron Gun
Screen
Control Electrode
Which of the following is a matrix form of 2D translation equation is,
P'=R*P
P'= P + R
P'= P / R
None of the above mentioned
Which of the following is a better option for drawing a smooth line on the screen?
Raster Scan Display
Random Scan Display
Both A and B
None of the above mentioned
A line can be seen by,
Two points
One point
Four points
Three points
What is the pixel range for an RGB image?OrWhat is the minimum and maximum possible value for each of the pixels of an RGB image?
0 - 23
0 - 224
0 - 1
None of the above
Translation equation:x1 = x + Txy1 = y + TyWhat is another name for the Translation pair (Tx, Ty)?
Shift Vector
Shift Coordinates
Translation points
None of the above
We set all scale factors to reduce the object's dimension.
Greater than 0
Less than 1
in Between 0 and 1
None of the Above
The ___ between the strong regions equal to the duration of the dashed lines.
Very short dashes
Inter dash spacing
Both A and B
None of these
Which among the following is a part of the Cathode Ray Tube?
Control Electrode
Electron Gun
Focusing System
All of the Above
Which of the following are true with respect to the Bresenham's algorithm?
It produces smooth polygons
The results of this algorithm are 100 percent accurate.
Due to integer operations, it's complexity gets reduced
All of the above
The term transformation refers to the process of applying a translation to an entity.
It's being repositioned around a circle lane
Repositioning it along with straight line path
Only A
None of these
Why is the complexity of Bresenham's line drawing algorithm less than that of DDA line drawing algorithm?
It uses floating point operations over integer addition and subtraction
It considers only selected ranged inputs
It uses integer addition and subtraction over floating point operations
None of the above
Which of the following does not represent a line pattern?
Dark line
Dotted line
Dashed line
None of the mentioned above
Which among the following is best suited for a smooth line drawing on the screen?
Random Scan Display Algorithm
Raster Scan Display Algorithm
Both a. and b.
None of the above