Created by Christopher Manning
Simplex Noise Code 39 Barcode
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"> | |
<title>Simplex Noise Code 39 Barcode</title> | |
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/d3/2.10.0/d3.v2.min.js"></script> | |
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5/dat.gui.min.js"></script> | |
<script src="http://bl.ocks.org/d/4289018/simplex-noise.min.js"></script> | |
<style type="text/css"> | |
body { | |
display: block; | |
margin: 0; | |
background-color: #FFF; | |
} | |
text{ | |
font-family:monospace; | |
font-size: 1.5em; | |
text-anchor: middle; | |
} | |
path{ | |
fill-opacity: 0; | |
} | |
</style> | |
</head> | |
<body></body> | |
<script type="text/javascript"> | |
var width = window.innerWidth, | |
height = window.innerHeight | |
var svg = d3.select("body") | |
.append("svg") | |
.attr("width", width) | |
.attr("height", height) | |
var config = { "height": 300, "characters": 10, "animate": false, "x": 1, "amplitude": 3, "velocity": 1, "margin": 100}; | |
var gui = new dat.GUI(); | |
//gui.close() | |
gui.add(config, "animate").listen(); | |
gui.add(config, "characters", 1, 40).step(1).listen(); | |
gui.add(config, "height", 1, height).listen(); | |
gui.add(config, "x", 1, 100).listen(); | |
gui.add(config, "amplitude", 1, 15).listen(); | |
gui.add(config, "velocity", 1, 100).listen(); | |
gui.add(config, "margin", 0, height/2).listen(); | |
config.random = function(){ | |
gui.__controllers.forEach(function(c){ | |
if(c.property!='random' && c.property!='margin'){ | |
c.setValue(Math.random()*c.__max) | |
} | |
}) | |
} | |
gui.add(config, "random") | |
characters = { | |
'100100100101': '$', | |
'100100101001': '/', | |
'100101001001': '+', | |
'100101011011': '-', | |
'100101101011': 'X', | |
'100101101101': '*', | |
'100110101011': 'V', | |
'100110101101': ' ', | |
'100110110101': 'Z', | |
'101001001001': '%', | |
'101001011011': '7', | |
'101001101011': '4', | |
'101001101101': '0', | |
'101010011011': 'G', | |
'101010110011': 'Q', | |
'101011001011': 'D', | |
'101011001101': 'J', | |
'101011010011': 'N', | |
'101011011001': 'T', | |
'101100101011': '2', | |
'101100101101': '9', | |
'101100110101': '6', | |
'101101001011': 'B', | |
'101101001101': 'I', | |
'101101010011': 'L', | |
'101101011001': 'S', | |
'101101100101': 'F', | |
'101101101001': 'P', | |
'110010101011': 'U', | |
'110010101101': '0', | |
'110010110101': 'Y', | |
'110011010101': 'W', | |
'110100101011': '1', | |
'110100101101': '8', | |
'110100110101': '5', | |
'110101001011': 'A', | |
'110101001101': 'H', | |
'110101010011': 'K', | |
'110101011001': 'R', | |
'110101100101': 'E', | |
'110101101001': 'O', | |
'110110010101': '3', | |
'110110100101': 'C', | |
'110110101001': 'M', | |
} | |
bar = d3.scale.quantize().domain([-1, 1]).range(Object.keys(characters)) | |
simplex = new SimplexNoise(); | |
d3.timer(function(t){ | |
if(config['velocity'] == 0) return | |
data = [] | |
// Code 39 barcodes start with a * | |
data.push('100101101101') | |
line = d3.svg.line() | |
.x(function(d) { return d.cx = d.x + (config['animate'] ? simplex.noise3D(100/config['x'], d.y/config['x'], t/((9999-config['velocity'])))*100 : 0) } ) | |
.y(function(d) { return d.cy = d.y + (config['animate'] ? simplex.noise3D(100/config['x'], d.y/config['x'], t/((9999-config['velocity'])))*100 : 0) } ) | |
d3.range(0, config["characters"]).forEach(function(x) { | |
data.push(bar(simplex.noise2D(x/(0+config['x']*.0001), t/((99-config['velocity'])*1000)))) | |
}) | |
// Code 39 barcodes end with a * | |
data.push('100101101101') | |
path = svg.selectAll('path') | |
// each character needs a space between it | |
.data(data.map(function(c) { return c + '0' }).join('').split('') | |
.map(function(d, i){ | |
return [ | |
{ c: d, x: config['margin'] + (i* config['amplitude']), y: config['margin']}, | |
{ c: d, x: config['margin'] + (i* config['amplitude']), y: config['margin'] + config['height']} | |
] | |
}) | |
) | |
path.enter() | |
.append('path') | |
path | |
.style("stroke", function(d) { return d[0].c == '1' ? '#000' : '#FFF'}) | |
.style("stroke-width", function(d) { return config['amplitude'] }) | |
.attr("d", line); | |
path.exit().remove() | |
text = svg.selectAll('text') | |
.data([data.slice(1,-1).join('')]) | |
text.enter() | |
.append('text') | |
middlePath = path[0][((config["characters"]+2)*12)/2].__data__ | |
text | |
.attr("x", function(d) { return middlePath[1].cx }) | |
.attr("y", function(d) { return 20 + middlePath[1].cy }) | |
.text(function(d) { return d.match(/[01]{12}/g).map(function(v) { return characters[v] }).join('') }) | |
text.exit().remove() | |
}) | |
</script> | |
</html> |
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