Table of Contents

## What is Bresenham line drawing algorithm in computer graphics?

Bresenham’s line algorithm is a line drawing algorithm that determines the points of an n-dimensional raster that should be selected in order to form a close approximation to a straight line between two points. It is one of the earliest algorithms developed in the field of computer graphics.

### Which algorithms are given by Bresenham?

This algorithm is used for scan converting a line. It was developed by Bresenham. It is an efficient method because it involves only integer addition, subtractions, and multiplication operations….Bresenham’s Line Algorithm:

x | y | d=d+I1 or I2 |
---|---|---|

5 | 3 | d+I2=5+(-6)=-1 |

6 | 4 | d+I1=-1+8=7 |

7 | 4 | d+I2=7+(-6)=1 |

8 | 5 |

#### What is mid point line algorithm?

INTRODUCTION The Midpoint line algorithm is an incremental line plotting algorithm i.e. at each step we make incremental calculations based on preceding step to find next y value, in order to form a close approximation to a straight line between two points.

**What will happen if PK 0 in Bresenham?**

i.e., Pk<0, means that midpoint is inside the circle boundary, so the circle boundary is close to the upper pixel, thus choose the upper pixel (xk+1, yk) for plotting, otherwise if Pk>0, the midpoint is outside the circle boundary, so the circle boundary is close to the lower pixel, thus choose the lower pixel (xk+1.

**Is midpoint line an algorithm?**

Line Drawing Algorithms- In computer graphics, Mid Point Line Drawing Algorithm is a famous line drawing algorithm. Mid Point Line Drawing Algorithm attempts to generate the points between the starting and ending coordinates.

## Which is better DDA or Bresenham?

Bresenham’s algorithm is more efficient and accurate than DDA algorithm. The DDA algorithm involves floating point values while in bresenham algorithm only integer values is included. As against, bresenham involves addition and subtraction causing less consumption of time. Therefore, DDA is slower than bresenham.

### How to draw a smooth line using Bresenham’s algorithm?

This algorithm is meant for basic line drawing only Initializing is not a part of Bresenham’s line algorithm. So to draw smooth lines, you should want to look into a different algorithm. Step5: Consider (x, y) as starting point and x end as maximum possible value of x. Step6: Generate point at (x,y)coordinates.

#### What is the algorithm for drawing a line?

Given coordinate of two points A (x1, y1) and B (x2, y2). The task to find all the intermediate points required for drawing line AB on the computer screen of pixels. Note that every pixel has integer coordinates. Below are some assumptions to keep algorithm simple. We draw line from left to right. Slope of the line is between 0 and 1.

**Which is the most efficient algorithm for scanning a line?**

Bresenham’s Line Algorithm This algorithm is used for scan converting a line. It was developed by Bresenham. It is an efficient method because it involves only integer addition, subtractions, and multiplication operations.

**Which is faster line algorithm or DDA algorithm?**

1. It involves only integer arithmetic, so it is simple. 2. It avoids the generation of duplicate points. 3. It can be implemented using hardware because it does not use multiplication and division. 4. It is faster as compared to DDA (Digital Differential Analyzer) because it does not involve floating point calculations like DDA Algorithm. 1.