Boundary-fill algorithm or flood-fill algorithm , Computer Graphics

Assignment Help:

boundary-fill algorithm or flood-fill algorithm

As you saw the implementation of scan line polygon fill requires that boundaries should be straight line segments.  The seed fill algorithms do not require any such constraints.  You only need to know an interior point of the closed boundary object to fill it.  This interior point is called a seed point.

However, determination of interior point for complex polygons such as the one shown in figure itself is a challenging task.The following methods are used to determine an interior point of the area to be filled. 

1.  Odd-even rule,

2.  Nonzero winding number rule.

Once an interior point of the object is determined, the boundary-fill algorithm or, flood-fill algorithm may be applied to fill the given area.


Related Discussions:- Boundary-fill algorithm or flood-fill algorithm

Computer aided design and drafting, Computer Aided Design and Drafting ...

Computer Aided Design and Drafting CADD or CAD stands for Computer Aided Design and Drafting. This is different from both "draw" and "paint" programs in which measurement is c

What do you meant by the term typography, Question 1: (a) What do you m...

Question 1: (a) What do you meant by the term typography and what is its main purpose? (b) Differentiate between typeface and font using examples. (c) Design knows many diffe

Write a code to generate a composite matrix, Write a code to generate a com...

Write a code to generate a composite matrix for general 3D rotation matrix.  Test your code and rotate continuously a cube about an axis.

Objectives of three dimensional transformations, Objectives  of Three dimen...

Objectives  of Three dimensional transformations explain basic 3D transformations-translation, rotation, scaling, shear and reflections-applied to objects in space; ex

What are the disadvantages with the boundary representation, Disadvantages ...

Disadvantages with the Boundary Representation (i) It requires more storage than the corresponding half-space method. (ii) There is no guarantee that the object created is v

Image space -approaches for visible surface determination, Image Space Appr...

Image Space Approach -Approaches for visible surface determination The initial approach as image-space, determines that of n objects in the scene is visible at every pixel in

Sprite animation interactive may be non rectangular, Sprite animation inter...

Sprite animation interactive, may be non rectangular (Computer games) In its simplest form it is a 2-D graphic object which moves across the display. Sprites frequently can hav

Cohen sutherland algorithm - 2d clipping algorithms, Cohen Sutherland algor...

Cohen Sutherland algorithm Point clipping is very simple.  All you need to check is whether a point is inside the window extremes in x- and y-directions.  For line clipping sev

Medicine-applications for computer animation, Medicine: this is very tough...

Medicine: this is very tough for a doctor to get inside a living human body and to observe what is occurrence. Computer animation once again comes in very helpful. Every particula

Mathematics-applications for computer animation, Mathematics: There are so...

Mathematics: There are some area like Probability, combination, permutation, etc.,that can be well explained along with the help of animation, that helps in enhancing the learning

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