Bresenham Line Drawing Algorithm Circle Drawing & Polygon Filling

Contents

In today’s lecture we’ll have a look at:
Bresenham’s line drawing algorithm
Line drawing algorithm comparisons
Circle drawing algorithms
A simple technique
The mid-point circle algorithm
Polygon fill algorithms
Summary of raster drawing algorithms

The Bresenham Line Algorithm

The Bresenham algorithm is another incremental scan conversion algorithm
The big advantage of this algorithm is that it uses on ....etc

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Abstract

We investigate whether, and to what extent, the physical phenomenon of long-lifetime resonant electromagnetic states with localized slowly-evanescent field patterns can be used to transfer energy efficiently over non-negligible distances, even in the presence of extraneous environmental objects. Via detailed theoretical and numerical analyses of typical real-world model-situations and realistic material parameters, we establish that such a non-radiative scheme can lead to ‘‘strong coupling’’ between two medium-range ....etc

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ELLIPSE GENERATING ALGORITHM
EX.NO:3(a)
DATE:

AIM:
To write a C program to draw an ellipse using the mid point ellipse algorithm.

ALGORITHM:

1. Get the radius (rx,ry) and the center of the ellipse (xc,yc).
2. Obtain the first point on the ellipse centered on the origin as (x0,y0)=(0,ry)
3. Calculate the initial value of the decision parameter in region 1 as p10=ry2-rx2ry+rx2/4
4. At each xk position in region 1,starting at k=0,perform the following test:
a. If p1k<0,the next point along the ellipse centere ....etc

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ellipse mid point algorithm in computer graphicswith openGL... ....etc

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