Pixel: A library to convert a 2-dimensional array into braille characters

• Pixel: A library to convert a 2-dimensional array into braille characters
  • How to use
  • Optimization
  • Benchmarks
  • How it works

How to use

Important Note: You need a terminal that supports unicode if you are planning on outputting to terminal, or you can just write to file.

Do you know 2-dimensional arrays in lua? The first index is x, second index is y. For example,

local t = {}
t[1][2] = 1

This sets the dot x = 1, y = 2 {1, 2} as 1.
To use this library, just require it and call it as so.

local Pixel = require('Pixel')

local t = {
    [1] = {
        [1] = 1,
        [2] = 0,
        [3] = 1
    }
}
local out = Pixel(t)
print(out)

Optimization

The code has been carefully optimized, so there might be "dirty" / hard-coded parts.

Benchmarks

TODO

How it works

Steps

1. Convert to rows locally
2. Finds the min / max of x and y
3. Iterate over rows (y)
4. Iterate over column (x)
5. Look at each 2x4 "pixel"
6. Push to out
7. Repeat
8. Return