Algorithm of Bresenhams line drawing
Write down the Bresenhams line drawing algorithm?
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Step 1: Input the line end-points and store the left end-point in (X0, Y0)
Step 2: Load the (X0, Y0) to the frame buffer.
Step 3: Compute constants Δx, Δy, 2 Δy, -2 Δx, and get the decision parameters as: P0 = 2 Δy – Δx
Step 4: At all Xk all along the line, beginning at k = 0, execute the following test
If Pk < 0, then the next point to plot is (Xk+1, Yk) and Pk+1 = Pk + 2 Δy. Or else, next point to the plot is (Xk+1, Yk+1) and Pk+1 = Pk+2 Δy - 2 Δx.
Step 5: Repeat the step 4 Δx times.
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