COMPUTER SCIENCE AND ENGINEERING
COMPUTER GRAPHICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Eight way symmetric
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Four way symmetric
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Both a & b
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Either a or b
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Detailed explanation-1: -Circle is an eight-way symmetric figure. The shape of circle is the same in all quadrants. In each quadrant, there are two octants. If the calculation of the point of one octant is done, then the other seven points can be calculated easily by using the concept of eight-way symmetry.
Detailed explanation-2: -The mid-point circle algorithm was developed by Jack Bresenham, who we heard about earlier. Bresenham’s patent for the algorithm can be viewed here.
Detailed explanation-3: -Syntax : circle(x, y, radius); where, (x, y) is center of the circle. ‘radius’ is the Radius of the circle.
Detailed explanation-4: -Answer-D, Explanation-The midpoint circle drawing algorithm also uses the eight way symmetry of the circle to generate.
Detailed explanation-5: -Bresenham’s Circle Drawing Algorithm is a circle drawing algorithm that selects the nearest pixel position to complete the arc. The unique part of this algorithm is that is uses only integer arithmetic which makes it, significantly, faster than other algorithms using floating point arithmetic in classical processors.