COMPUTER SCIENCE AND ENGINEERING
COMPUTER GRAPHICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Digital difference analyzer
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Direct differential analyzer
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Digital differential analyzer
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Data differential analyzer
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Detailed explanation-1: -Answer: c Explanation: DDA stands for digital differential analyzer.
Detailed explanation-2: -In its simplest implementation for linear cases such as lines, the DDA algorithm interpolates values in interval by computing for each xi the equations xi = xi−1 + 1, yi = yi−1 + m, where m is the slope of the line.
Detailed explanation-3: -Explanation: DDA is an acronym of Digital Differential Analyzer.
Detailed explanation-4: -"The DDA algorithm uses the results of previous step for determining the value of the next step.” Explanation: As the DDA algorithm is an incremental algorithm, it uses the previous values for determining the next values.
Detailed explanation-5: -Answer: a. It overcomes the drawbacks of DDA line drawing algorithm Explanation: The Bresenham’s algorithm was proposed in order to overcome the drawbacks of the DDA algorithm.