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

2d shape primitives, 2D Shape Primitives You have already learnt to plo...

2D Shape Primitives You have already learnt to plot a point or a pixel on any display device. In this unit, we shall introduce you to various devices available for data input o

Bezier curves and surfaces - modeling and rendering, Bezier Curves and Surf...

Bezier Curves and Surfaces We had discussed in the previously that we can create complicated geometries along with the aid of polygon meshes that are further constituted of s

Principal vanishing point write respect to z-axis, Principal vanishing poin...

Principal vanishing point write respect to Z-axis Principal vanishing point w.r.t z-axis: By the 3rd row of matrix equation, we declare that the principal vanishing point w

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

Clipping and 3d primitives, Clipping and 3D Primitives This unit introd...

Clipping and 3D Primitives This unit introduces you to three important concepts of Computer Graphics. After that discusses the concept of clipping, which means removal of objec

Cohen sutherland line clippings algorithm, Cohen Sutherland Line Clippings ...

Cohen Sutherland Line Clippings Algorithm The clipping problem is identified by dividing the region surrounding the window area into four segments Up as U, Down as D, Left as

Languge, what languge do computers speak

what languge do computers speak

Scan conversion of line with the slope, Scan Conversion of Line with the sl...

Scan Conversion of Line with the slope (0 Currently the pixel positions beside the line path are determined through sampling at Unit x intervals that is, starting from the fi

Liquid crystal display - graphics hardware, Liquid Crystal Display - Graphi...

Liquid Crystal Display - Graphics Hardware It is a type of display utilized in digital watches and several portable computers. These work along with polarized ambient as outsi

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