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Q1: consider the algorithm below, Step 1: Input the two line endpoints, storing the left endpoint in (Xa, Ya) and Right endpoint in (X2, Y2) Step 2: Plot the point (X1, Y:) Step 3: Calculate the constants, Ax, Ay, 2Ay and (2Ay - 2Ax) and get the first value for the decision parameter as: Po = 2Ay - Ax Step 4: At each Xx along the line, starting at K-0, perform the following test: if Pk < 0, the next point to plot is (Xa+1, Y«) and Pk1 - Pk+2Ay Otherwise the next point to plot is (Xx+1, Yk+1) and: Pw1- Pk + 2Ay - 2Ax Step 5: Repeat step 4, Ax times. Explain each step then compare it with DDA algorithm.

Q1: consider the algorithm below, Step 1: Input the two line endpoints, storing the left endpoint in (Xa, Ya) and Right endpoint in (X2, Y2) Step 2: Plot the point (X1, Y:) Step 3: Calculate the constants, Ax, Ay, 2Ay and (2Ay - 2Ax) and get the first value for the decision parameter as: Po = 2Ay - Ax Step 4: At each Xx along the line, starting at K-0, perform the following test: if Pk < 0, the next point to plot is (Xa+1, Y«) and Pk1 - Pk+2Ay Otherwise the next point to plot is (Xx+1, Yk+1) and: Pw1- Pk + 2Ay - 2Ax Step 5: Repeat step 4, Ax times. Explain each step then compare it with DDA algorithm.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Q1: consider the algorithm below, Step 1: Input the two line endpoints, storing the left endpoint in (X1, Ya) and Right endpoint in (X2, Y2) Step 2: Plot the point (X1, Y1) Calculate the constants, Ax, Ay, 2Ay and (2Ay - 2Ax) and get the first value for the decision parameter as: Step 3: Po = 2Ay - Ax Step 4: At each Xx along the line, starting at K-0, perform the following test: if Pk < 0, the next point to plot is (Xx+1, Yk) and Pk+1 = Pk + 2Ay Otherwise the next point to plot is (X+1, Yx+1) and: P1 - Pk + 2Ay - 2Ax Step 5: Repeat step 4, Ax times. Explain each step then compare it with DDA algorithm.
Transcribed Image Text:Q1: consider the algorithm below, Step 1: Input the two line endpoints, storing the left endpoint in (X1, Ya) and Right endpoint in (X2, Y2) Step 2: Plot the point (X1, Y1) Calculate the constants, Ax, Ay, 2Ay and (2Ay - 2Ax) and get the first value for the decision parameter as: Step 3: Po = 2Ay - Ax Step 4: At each Xx along the line, starting at K-0, perform the following test: if Pk < 0, the next point to plot is (Xx+1, Yk) and Pk+1 = Pk + 2Ay Otherwise the next point to plot is (X+1, Yx+1) and: P1 - Pk + 2Ay - 2Ax Step 5: Repeat step 4, Ax times. Explain each step then compare it with DDA algorithm.
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