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

Plane equation - curves and surfaces, Plane Equation - Curves and Surfaces ...

Plane Equation - Curves and Surfaces Plane is a polygonal surface that bisects its environment in two halves. One is termed to as forward and another as backward half of som

List any four audio file formats you know, Question (a)  List any four ...

Question (a)  List any four audio file formats you know. (b)  UTMDigitlab ltd, specialized in digitizing sound, converts an audio stream of the latest album of Shakira into

Computer simulation - computer aided design, Computer simulation - Computer...

Computer simulation - Computer Aided Design Computer simulation is the manner of designing a model of a real or theoretical physical system, not including the model on a digit

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

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

Distinguish between bitblt and pixblt, Distinguish between bitBlt and pixBl...

Distinguish between bitBlt and pixBlt?  Raster functions that manipulate rectangular pixel arrays are usually referred to as raster ops. Moving a block of pixels from one locat

Define polygon, Define polygon?  A polygon is any closed continues sequ...

Define polygon?  A polygon is any closed continues sequence of line segments i.e., a polyline whose last node point is similar as that of its first node point. The line segment

Chain of responsibility and the iterator patterns, QUESTION (a) Conside...

QUESTION (a) Consider the observer, façade, chain of responsibility and the iterator patterns. i) Give detailed descriptions and draw their structures. ii) Explain the in

What is the standard video workflow, QUESTION 1. You are a consultant i...

QUESTION 1. You are a consultant in the field of video production and video editing. You haven been requested to participate in a debate over analog and digital video. Write

Animate 3d articulated character - forward kinematic method, In this progra...

In this programming assignment, you will animate and pose 3D articulated characters by implementing forward and inverse kinematic methods. You should be able to animate character j

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