UTF-8 binary pixels / Grant Custer

Design and coding @fastforwardlabs. Lately interested in grids. Continually interested in simulations. He/him.

Published

Edited

Nov 17, 2019

1 star

draw('Grant Custter')

function draw(string) {

let binary = convert(string)

let canvas = document.createElement('canvas');

let ps = 10;

let cols = 2;

let rows = 4;

// let cols = 4;

// let rows = 2;

canvas.width = binary.length * cols * ps;

canvas.height = rows * ps;

let ctx = canvas.getContext('2d');

for (let b = 0; b < binary.length; b++) {

for (let r = 0; r < rows; r++) {

for (let c = 0; c < cols; c++) {

let byte = binary[b];

let bit = byte[r * cols + c];

if (parseInt(bit) === 1) {

let x = b * cols * ps + c * ps;

let y = r * ps;

ctx.fillRect(x, y, ps, ps)

}

return canvas;

}

// adapted from https://stackoverflow.com/a/14430733/8691291

function convertChar(char) {

return char.charCodeAt(0).toString(2).padStart(8, '0');

}

function convert(string) {

let chars = string.split('')

let binary = chars.map(char => convertChar(char))

return binary

}

convert('Grant Custer')

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