Area filling algorithms - output primitives, Computer Graphics

Assignment Help:

Area Filling Algorithms

Before we go ahead with area filling algorithms, a word about pixel addressing and object geometry. You know that line segments are discretized into finite number of pixels and each pixel has its height and width depending upon the aspect ratio of the display unit.Therefore, if you plot a single pixel it will occupy some area on display unit.  This contributes to the object geometry resulting in aberrations from the actual size.  For example, if you have to plot a line segment starting from (10,10) to (15,10), then length of the segment is 5 whereas, in plotting this line segment, six pixel areas will be contributing to this segment, resulting in increased length of line segment by one unit.


Related Discussions:- Area filling algorithms - output primitives

Application areas of computer graphics, Explain application areas of comput...

Explain application areas of computer graphics in different areas.    Early computer graphics has only certain special capabilities such as straight lines circles and ellipses

Midpoint circle generation algorithm - 2d shape primitives, Midpoint Circle...

Midpoint Circle Generation Algorithm   Just as a line drawing algorithm approximates infinite number of points on a line segment by only a finite number of pixels, a circle dra

Algorithms for filled-area primitives, Algorithms for filled-area primitive...

Algorithms for filled-area primitives These algorithms are classified into two categories (i)  Scan line algorithms (ii) Seed fill algorithms.

Overstriking, why overstriking is harmful.justify

why overstriking is harmful.justify

Disadvantages of the z-buffer method, Disadvantages : 1)   Doubles memor...

Disadvantages : 1)   Doubles memory needs, one for at least z-buffer and one for refreshes- buffer. 2)   Dependency of device and memory intensive. 3) Wasted calculation u

Write short notes on active and passive transformations, Write short notes ...

Write short notes on active and passive transformations?  In the active transformation the points x and x represent different coordinates of the similar coordinate system. Here

Lossy audio formats, Lossy Audio Formats: These are based on sound models ...

Lossy Audio Formats: These are based on sound models which eliminate audio data such humans cannot or can hardly hear, for example: a low volume sound after a large volume sound.

How many key frames does a one-minute animation film, How many key frames d...

How many key frames does a one-minute animation film order along with no duplications need? Solution : One minute = 60 seconds Number of frames needed per second=24 Numbe

Define emissive and non-emissive displays, What do you mean by emissive and...

What do you mean by emissive and non-emissive displays?  The emissive display changes electrical energy into light energy. The plasma panels, thin film electro-luminescent disp

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd