Created by Christopher Manning
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December 9, 2015 20:28
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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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