How does the midpoint line algorithm determine the next pixel to be drawn?
Understand the Problem
The question is asking about the functioning of the midpoint line algorithm, specifically how it determines which pixel to draw next on a raster display.
Answer
It evaluates the midpoint between two potential pixel positions to decide the next pixel.
The midpoint line algorithm determines the next pixel to be drawn by evaluating the mid-point between two potential pixel positions. The decision variable helps select the pixel that minimizes the error from the actual line path.
Answer for screen readers
The midpoint line algorithm determines the next pixel to be drawn by evaluating the mid-point between two potential pixel positions. The decision variable helps select the pixel that minimizes the error from the actual line path.
More Information
The algorithm, similar to Bresenham's line algorithm, keeps the line drawing process efficient by reducing floating-point calculations and staying within half a pixel of the actual line.
Tips
A common mistake is not updating the decision variable correctly, leading to inaccurate pixel plots.
Sources
- Mid-Point Line Drawing Algorithm | Medium - medium.com
