Interview Questions.

Question 1. What Is Surface Rendering In Visualization?

Answer :

Lightening conditions inside the screen
Assigned characteristics
Degree of transparency
How difficult or clean the surfaces are to be
Exploded and cutaway views
Three dimensional and stereoscopic perspectives
Question 2. Explain The Steps Involved In 3d Transformation?

Answer :

Modeling Transformation.
Viewing Transformation.
Projection Transformation.
Workstation Transformation.
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Question 3. What Is Depth Cueing In Visualization?

Answer :

Basic trouble for visualization techniques is called intensity cueing.

Some three-D gadgets are without depth records visible line and surface identification To spotlight the seen lines display seen lines as dashed traces casting off the invisible traces.

Question four. Explain Informational Visualization?

Answer :

Information visualization concentrates on using computer-supported equipment to discover big amount of summary statistics. The time period "information visualization" was in the beginning coined by way of the User Interface Research Group at Xerox PARC and included Dr. Jock Mackinlay. Practical application of statistics visualization in pc applications includes choosing, transforming and representing summary statistics in a shape that enables human interplay for exploration and understanding. Important factors of statistics visualization are dynamics of visual representation and the interactivity. Strong strategies allow the user to modify the visualization in actual-time, thus affording unheard of belief of patterns and structural family members within the abstract facts.

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Question five. Can You Please Explain The Difference Between General Graphics System Designed For A Programmer And One Designed For A Specific Application, Such As Architectural Design?

Answer :

Basically, packages designed for graphics programming incorporate functions for setting primitives, attributes, and parameters for various pix operations which includes viewing and differences. Packages designed for applications allow a person to create scenes in phrases of the particular application, in preference to in phrases of snap shots capabilities.

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Question 6. Which Major Components (hardware And Software) Are Needed For Computer Graphics?

Answer :

Besides the simple laptop, some special devices and software program may be required particularly for computer pics. For hardware, a unique excessive-resolution, color monitor is often demanded and a few enter gear, e.G. Mouse and pleasure-sticky label, and tough-replica gadgets, e.G. Excessive-decision color printer, can be required. For software, a few unique reason utilities (device-based and device-unbiased) are wanted for managing processing in pc pics.

Question 7. What Is Depth Sorting Method In Visualization?

Answer :

Both picture and item space operations.
Perform the simple function.
Surface are sorted in order of reducing intensity.
Surface are experiment transformed so as, starting with the surface of best intensity.
Often referred as painters algorithm.
Test indexed in the order of increasing issue.
Surface do now not overlap.
Projections of the 2 surfaces on to the view aircraft do no longer overlap.
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Question 8. Explain The Advantages Of Electrostatic Plotters?

Answer :

They are faster than pen plotters and really excessive nice printers.
Recent electrostatic plotters encompass a scan-conversion functionality.
Color electrostatic plotters are available. They make more than one passes over the paper to plot color photos.
Question 9. What Is Pixel Phasing In Visualization?

Answer :

Pixel phasing is an antialiasing technique, stair steps are smoothed out by means of shifting the electron beam to extra almost approximate positions particular by the object geometry.

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Question 10. Explain Winding Number In Visualization?

Answer :

Winding wide variety approach is used to test whether a given point is interior or out side the polygon. In this method deliver a path range to all the rims which move the test line. If the threshold begins underneath the road and ends above scan line give path as -1 . Otherwise1. Fr polygons or  dimensional items, the factor is said to be internal whilst the cost of winding quantity is nonzero.

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Question eleven. What Is Perspective Projection?

Answer :

Done through the projecting points to the display aircraft along the converging factors Causes the objects further from the viewing factor should be smaller of the identical sized item present here.

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Question 12. What Is Parallel Projection?

Answer :

The manufacturing of the 2D display of the 3-D scene is known as projection. Project points on the item surface along the parallel traces on to the show plane. Different 2D views of items may be produced by using projecting the visible points.

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Question thirteen. Explain Blobby Object?

Answer :

Some objects do not preserve a fixed form, however change their floor characteristics in sure motions or when in proximity to different gadgets. That is called blobby gadgets.

Example - molecular systems, water droplets.

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Question 14. Can You Please Explain The Difference Between Bitmap And Pixmap?

Answer :

The body buffer used in the black and white system is known as bitmap which take one bit in step with pixel. For systems with multiple bits consistent with pixel, the frame buffer is often referred to as a pixmap.

Question 15. What Are The Merits And Demerits Of Penetration Techniques In Visualization?

Answer :

It is an inexpensive method.
It has most effective 4 shades.
The pleasant of the picture isn't always correct when it's far compared to other strategies.
 It can display coloration scans in monitors.
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Question sixteen. What Is Non-emissive In Visualization?

Answer :

They are optical outcomes to transform the daylight or mild from some other source to picture shape. Liquid crystal show is an instance.

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Question 17. What Is Emissive In Visualization?

Answer :

The emissive display converts electric strength into mild strength. The plasma panels, thin movie electro-luminescent presentations are the examples.

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Question 18. What Is Scan Code In Visualization?

Answer :

When a secret is pressed on the keyboard, the keyboard controller locations a code carry to the key pressed into a part of the memory called as the keyboard buffer. This code is called because the test code.

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Question 19. Explain Some Basic Features Of Computer Graphics?

Answer :

The salient function of laptop pictures is the advent and manipulation of pix (synthetic photographs) by using laptop.

Computer pics affords a tool referred to as as movement dynamics which lets in user to move object.

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Question 20. What Is Resource Manager In Flex Actionscript?

Answer :

Resource Manager now handles get entry to to all localized sources in an software. Any additives that enlarge UIComponent, Formatter, or Validator now have a new resourceManager belongings, which lets you effortlessly get entry to the singleton instance of this manager. If youre writing some other sort of magnificence that needs to use the Resource Manager, you could call Resource Manager. Get Instance() to get a connection with it.

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Question 21. What Is Raster Scan Systems?

Answer :

Several processing gadgets: Contains a special purpose processor, called video controller or show controller.

Video controller: A constant region of the gadget reminiscence is reserved for the frame buffer, and the video controller is given get entry to to the framebuffer reminiscence. 

Tow registers are used to store the coordinates of the display pixels. 
The value is stored inside the body buffer for this pixel role is then retrieved and used to set the depth of the CRT beam Initially the x check in is about to zero and the y sign up is about to ymax. 
Then the x sign up is incremented via 1, and the procedure repeated for the subsequent pixel at the top experiment line.
Question 22. Can You Please Explain The Difference Between Window Port & View Port?

Answer :

A part of a photograph that is to be displayed with the aid of a window is called window port. The display location of the component selected or the form wherein the chosen part is viewed is referred to as view port.

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