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The task of drawing a straight line on a graphics screen is a fund amen- tail building block for most computer graphics applications. Unfortunately, this capability is ...
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How to fill out bresenham line-drawing - ece

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How to fill out Bresenham line-drawing - ECE:

01
Understand the concept of Bresenham line-drawing algorithm.
1.1
Bresenham algorithm is used to draw lines on a digital display using only integer arithmetic.
1.2
It generates points along a line with a specific slope by considering the relative pixel positions.
02
Determine the starting and ending coordinates for the line.
2.1
Identify the (x1, y1) and (x2, y2) coordinates of the two endpoints of the line.
03
Calculate the slope of the line.
3.1
Calculate the change in x (Δx) and change in y (Δy) between the two endpoints:
Δx = x2 - x1 and Δy = y2 - y1.
01
Determine the direction of the line.
1.1
Identify whether the line is steep (|Δy| > |Δx|) or shallow (|Δx| > |Δy|) based on the absolute values of Δx and Δy.
02
Initialize the decision variable.

Define an initial decision variable (d) based on the direction of the line:

01
For steep lines (|Δy| > |Δx|), d = 2 * Δy - Δx.
02
For shallow lines (|Δx| > |Δy|), d = 2 * Δx - Δy.
2.1
Start filling out the line.
03
Begin at the starting point (x1, y1) and calculate the coordinates of subsequent points along the line using the Bresenham algorithm.
3.1
Update the decision variable and current pixel position.
04
Update the decision variable based on its current value and the direction of the line:
05
For steep lines, if d < 0, increment y and recalculate d as d = d + 2 * Δy. Otherwise, recalculate d as d = d + 2 * Δy - 2 * Δx.
06
For shallow lines, if d < 0, increment x and recalculate d as d = d + 2 * Δx. Otherwise, recalculate d as d = d + 2 * Δx - 2 * Δy.
6.1
Repeat steps 6 and 7 until reaching the ending point (x2, y2).
07
Continue calculating and updating points along the line until you reach the final endpoint.

Who needs Bresenham line-drawing - ECE:

01
Students or practitioners studying or working in the field of electrical and computer engineering (ECE).
1.1
The Bresenham line-drawing algorithm is often taught or used in ECE courses or projects.
02
Programmers or software developers in various industries.
2.1
Professionals who work with graphics or image processing may need to utilize the Bresenham algorithm for line-drawing tasks.
03
Individuals interested in computer graphics and algorithms.
3.1
Enthusiasts or hobbyists exploring computer graphics algorithms may find the Bresenham line-drawing technique intriguing and beneficial to learn.
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Bresenham line-drawing is a computer algorithm used in computer graphics to draw a line between two given points.
Bresenham line-drawing is a technique used by computer programmers and graphic designers to draw lines in a digital image or display.
To implement Bresenham line-drawing, programmers need to use the algorithm to calculate the coordinates of each point on the line and then plot those points.
The purpose of Bresenham line-drawing is to efficiently and accurately draw lines on a digital display or image.
In Bresenham line-drawing, the necessary information to be reported includes the coordinates of the starting and ending points of the line.
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