Midpoint circle algorithm for scan converting a circle, Computer Graphics

Assignment Help:

Explain Bresenham s circle drawing algorithm,  OR   Explain midpoint circle algorithm for scan converting a circle.

Midpoint Circle Algorithm   1. Input radius r and circle center (x c , y c) , and obtain the first point on the circumference of a circle centered on the origin as (x0, y0,) = (0, r)  2. Calculate the initial value of the decision parameter as p0 = 5/4-r  3. At each x k position, starting at k = 0, perform the following test: If p k <0 , the next point along the circle centered on (0,0) is (x k+1,y k) and p k+1 = p k + 2x k+1 + 1 Otherwise, the next point the circle is ( x k + 1, y k -1) and p k+1 = p k+ 2x k+1 + 1 -2 y k where 2x k+1 = 2xk +2 and 2yk+1 = 2y k -2.  4. Determine symmetry points in the other seven octants.  5. Move each calculated pixel position (x, y) onto the circular path centered on (x c,y c) and plot the coordinate values: x = x +x c,  y = y + y c  6. Repeat steps 3 through 5 until x > y


Related Discussions:- Midpoint circle algorithm for scan converting a circle

Compute the negative of the image, Obtain an MRI image using the Open Sourc...

Obtain an MRI image using the Open Source internet resources. i. Read the image into Scilab ii. Plot the image iii. Covert it into grayscale image and plot it iv. Find/

Digital signal processing system for an analog signal, QUESTION (a) Dra...

QUESTION (a) Draw and explain the block diagram of a Digital Signal Processing System for an analog signal. (b) Draw the pictorial representation of the signals at each leve

Introduction to computer graphics, Introduction To Computer Graphics ...

Introduction To Computer Graphics Early man employed drawings to communicate even before he learnt to communicate, write or count. Incidentally, these earliest hierogly

Define random scan and raster scan displays, Define Random Scan/Raster Scan...

Define Random Scan/Raster Scan displays. Ans. Random scan is a process in which the display is made by the electronic beam, which is directed, only to the points or division of

Application areas of computer graphics, Explain application areas of comput...

Explain application areas of computer graphics in different areas.    Early computer graphics has only certain special capabilities such as straight lines circles and ellipses

What is a model sheet?, Question 1 Briefly explain the twelve principles o...

Question 1 Briefly explain the twelve principles of animation Question 2 Explain the methods to set-up pre and post-infinity curves Question 3 What is a model sheet? Exp

Compare bresenham line generation algorithm with dda, 1. Compare Bresenham...

1. Compare Bresenham line generation with Digital Differential Analyzer line generation. Ans.   Bresenham line generation algorithm is better than Digital Differential Analyze

Operation reseach, #question. Steps involved in the solution of operation r...

#question. Steps involved in the solution of operation research problem

Briefly explain how the median filter works, QUESTION 1 (a) Write a run...

QUESTION 1 (a) Write a run method in Image J environment for the following cases Contrast and Brightness Histogram Generation Histogram Equalisation   (b)

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