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

Polygon representation methods - boundary representations, Polygon represen...

Polygon representation methods - Boundary representations Boundary representations: now the 3-D object is shown as a set of surfaces which separate the object interior from

Explain what is the bleed and its purposes, QUESTION (a) Name the space...

QUESTION (a) Name the spaces and guides in the Figure below                 (b) What is the difference between Pantone and Process colors? Elaborate (c) Explain what i

Tablet computer - cad and cam, Tablet Computer - CAD and CAM Tablet ...

Tablet Computer - CAD and CAM Tablet Computer: it is a complete computer comprises in a touch screen. Tablet computers can be specialized for only Internet utilize or be fu

Characteristics of digital video, Digital video can be characterized by a f...

Digital video can be characterized by a few variables: Frame rate : various frames displayed per second. The illusion of motion may be experienced on frame rates as low as 12 f

Arguments made in favour of analog sound, Arguments made in favour of Analo...

Arguments made in favour of Analog Sound Shape of the waveforms: from digital signals sound reconstructed which is claimed to be harsher and unnatural compared to analog si

Z-buffer algorithm, How to implement z-buffer algorithm using C programming...

How to implement z-buffer algorithm using C programming

Categories of line segments - 2d clipping algorithms, Categories of Line Se...

Categories of Line Segments It categorizes line segments into three categories (i) trivially rejected (ii) trivially selected (iii) may be partially visible or totally invisibl

Construction of a solid with a translational sweep, Construction of a Solid...

Construction of a Solid with a Translational Sweep Figure demonstrates construction of a solid along with a translational sweep. Translating the control points of the periodic

Differences of forward kinematics and inverse kinematics, Question 1: (...

Question 1: (a) Provide a clear explanation of what is ‘rigging' and its use? (b) What are the basic differences of Forward Kinematics (FK) and Inverse Kinematics (IK)? Wh

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