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

High level techniques (motion generalized), High level techniques (motion g...

High level techniques (motion generalized) Techniques utilized to explain general motion behavior of any of graphic object, such techniques are algorithms or models utilized to

Interactive Computer Graphics, Explain the different input modes used in in...

Explain the different input modes used in interactive computer graphics.

Polygon tables - curves and surfaces, Polygon Tables - curves and surfaces ...

Polygon Tables - curves and surfaces All polygons are analogous to a graph G (V, E). Remember that the analogy in which a polygon surface can be specified along with as a set

Algorithms for basic line segment plotting, Algorithms for Basic Line Segme...

Algorithms for Basic Line Segment Plotting There are two important algorithms for basic line segment plotting-DDA algorithm and Bresenham algorithm.  Both the algorithms use th

Fill in the blanks, a__________of a scene is apart of a scene by which rela...

a__________of a scene is apart of a scene by which relate one part of the scene with the other parts of the scene

Designing human Computer interface, I have an assignment to do & it''s due ...

I have an assignment to do & it''s due on Wednesday !

Features for good 3-dimentional modeling , Features for good 3-Dimentional ...

Features for good 3-Dimentional modeling software are as: Multiple windows which permit you to view your model in each dimension. Capability to drag and drop primitive

General perspective transformation, General Perspective transformation w.r....

General Perspective transformation w.r.t. an arbitrary center of projection Suppose here that the COP is at C(a,b,c), as demonstrated in Figure. By Figure, the vectors CP

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