Question:
Which algorithm is used to generate an ellipse by taking advantage of its symmetry?
Which algorithm is used to generate an ellipse by taking advantage of its symmetry?
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Which of the four is actually an ellipse-drawing algorithm rather than a line, clipping, or fill routine?
Updated On: Jul 2, 2026
- Flood-Fill Algorithm
- Cohen-Sutherland Algorithm
- Midpoint Ellipse Algorithm
- Bresenham's Line Algorithm
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The Correct Option is C
Solution and Explanation
Step 1: The question asks specifically about drawing an ellipse using its symmetry.
Step 2: The Midpoint Ellipse Algorithm computes points in just one quadrant and uses the ellipse's four-way symmetry to plot the mirror points in the other three quadrants, saving work.
Step 3: Rule out the others. Flood-Fill is a region-filling algorithm. Cohen-Sutherland is a line clipping algorithm. Bresenham's Line Algorithm draws straight lines, not ellipses.
Step 4: The correct answer is the Midpoint Ellipse Algorithm.
Step 2: The Midpoint Ellipse Algorithm computes points in just one quadrant and uses the ellipse's four-way symmetry to plot the mirror points in the other three quadrants, saving work.
Step 3: Rule out the others. Flood-Fill is a region-filling algorithm. Cohen-Sutherland is a line clipping algorithm. Bresenham's Line Algorithm draws straight lines, not ellipses.
Step 4: The correct answer is the Midpoint Ellipse Algorithm.
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