4.1- Basic Concepts Of Circle Drawing Algorithms In Computer Graphics
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- čas přidán 7. 09. 2024
- Bresenham’s circle drawing algorithm
It is not easy to display a continuous smooth arc on the computer screen as our computer screen is made of pixels organized in matrix form. So, to draw a circle on a computer screen we should always choose the nearest pixels from a printed pixel so as they could form an arc. There are two algorithm to do this:
Mid-Point circle drawing algorithm
Bresenham’s circle drawing algorithm
We have already discussed the Mid-Point circle drawing algorithm in our previous post.In this post we will discuss about the Bresenham’s circle drawing algorithm.
Both of these algorithms uses the key feature of circle that it is highly symmetric. So, for whole 360 degree of circle we will divide it in 8-parts each octant of 45 degree. In order to that we will use Bresenham’s Circle Algorithm for calculation of the locations of the pixels in the first octant of 45 degrees. It assumes that the circle is centered on the origin. So for every pixel (x, y) it calculates, we draw a pixel in each of the 8 octants of the circle
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How many types of Video Compressions?
(a)2
(b)3
(C)4
(d)5
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