Scan line polygon fill algorithm - raster graphics, Computer Graphics

Assignment Help:

Scan Line Polygon Fill Algorithm - Raster Graphics

In such algorithm, the information for a solid body is stored in the frame buffer and utilizing that information each pixel that is, of both interior region and boundary are considered and, are so plotted. This time we are going to perform scan conversion of solid regions; here the areas are bounded through polygonal lines.  Pixels are considered for the interior of the polygonal area and are then filled plotted along with the predefined colour. Now let us discuss the algorithm briefly and then we will further discuss details on the similar.

This algorithm checks and modifies the attributes (that is parameters and characteristics) of the pixels only with the current raster scan line. Immediately it crosses over from the outside to the inside of a boundary of the particular polygon it begins resetting the colour or as gray attribute. In filling effect the region along that scans line. Such changes back to the initial attribute while it crosses the boundary again. In following figure, shows variations of this basic idea.

1234_Scan Line Polygon Fill Algorithm - Raster Graphics 1.png

Figure: Concept of scan line polygon filling

Hence as to understand Scan Line Polygon Fill Algorithm in detail consider in following figure:

1607_Scan Line Polygon Fill Algorithm - Raster Graphics 2.png

Figure: Scan line polygon filling


Related Discussions:- Scan line polygon fill algorithm - raster graphics

Cases for subdivisions of polygon-visible surface detection, Cases for Subd...

Cases for Subdivisions of Polygon No additional subdivisions of a particular area are desired, if one of the subsequent conditions is true as: Case 1: All the polygons ar

What is the theory of gestalt, Question: (a) After having worked for s...

Question: (a) After having worked for several years as a graphic designer you decide to start a company of your own; MediaDesign ltd. The most valuable asset of a company is i

Ambient reflection-polygon rendering & ray tracing methods , Ambient Reflec...

Ambient Reflection-Polygon Rendering & Ray Tracing Methods When we go for the examiner of light effects, so surroundings play a significant role and it is assumed as there

Diffuse reflection - polygon rendering & ray tracing methods, Diffuse Refle...

Diffuse Reflection - Polygon Rendering & Ray Tracing Methods It is characteristic of light reflected from a non-shiny, dull surface. Objects illuminated solely through diff

Linearly interpolate - modeling and rendering, Linearly interpolate - Model...

Linearly interpolate - Modeling and Rendering I 4 = I 1 + t (I 2 - I 1 ); here t = (|y 1 - y 2 |)/(|y 1 - y 2 |) I D = I A + t (I B - I A ); here t = (|AD|)/(|AB|)

Assumptions for area subdivision method, Assumptions for Area Subdivision M...

Assumptions for Area Subdivision Method a) ¾   Plane of projection is z=0 plane b) ¾ Orthographic parallel projections c) ¾   Direction of projection as d= (0,0,-1) d

Convert the intensity value of the current pixel, Step1:  Read a text file ...

Step1:  Read a text file which we want to hide. Step2:  Transform it into an array of its binary value. Step3: Transform this array into its equivalent one dimensional array

Types of authoring tools in multimedia, Types of Authoring Tools Autho...

Types of Authoring Tools Authoring tools are grouped depends on metaphor used for sequencing or organizing multimedia components and events as: Page or Card Based Tools

What are the important applications of computer graphics, Can you list at l...

Can you list at least three important applications of computer graphics? There are lots of interesting applications of computer graphics. Three common applications are compute

Basic approaches for visible surface determination, Basic Approaches for Vi...

Basic Approaches for Visible Surface Determination There are two basic approaches for visible-surface determination, as per if they deal along with their projected images or a

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