Created
May 12, 2015 21:48
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<!doctype html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<meta http-equiv="X-UA-Compatible" content="chrome=1"> | |
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> | |
<script src="//code.jquery.com/jquery-1.11.0.min.js"></script> | |
<script src="quagga.min.js"></script> | |
<style> | |
#interactive.viewport { | |
width: 640px; | |
} | |
#interactive.viewport canvas, video { | |
float: left; | |
width: 640px; | |
} | |
#interactive.viewport canvas.drawingBuffer, video.drawingBuffer { | |
margin-left: -640px; | |
} | |
</style> | |
</head> | |
<body> | |
<input type="submit" value="stop" onclick="Quagga.stop(); return false;"/> | |
<div id="interactive" class="viewport"></div> | |
<div id="results"></div> | |
<script> | |
$(function() { | |
var App = { | |
init: function() { | |
Quagga.init(this.state, function() { | |
Quagga.start(); | |
}); | |
}, | |
state: { | |
inputStream: { | |
type : "LiveStream", | |
constraints: { | |
width: 640, | |
height: 480, | |
facing: "environment" | |
} | |
}, | |
locator: { | |
patchSize: "medium", | |
halfSample: true | |
}, | |
numOfWorkers: 4, | |
decoder: { | |
readers: ["code_128_reader", "code_39_reader", "upc_reader", "upc_e_reader", "ean_reader", "ean_8_reader", "codabar_reader"] | |
}, | |
locate: true | |
} | |
}; | |
App.init(); | |
Quagga.onProcessed(function(result) { | |
var drawingCtx = Quagga.canvas.ctx.overlay, | |
drawingCanvas = Quagga.canvas.dom.overlay; | |
if (result) { | |
if (result.boxes) { | |
drawingCtx.clearRect(0, 0, parseInt(drawingCanvas.getAttribute("width")), parseInt(drawingCanvas.getAttribute("height"))); | |
result.boxes.filter(function (box) { | |
return box !== result.box; | |
}).forEach(function (box) { | |
Quagga.ImageDebug.drawPath(box, {x: 0, y: 1}, drawingCtx, {color: "green", lineWidth: 2}); | |
}); | |
} | |
if (result.box) { | |
Quagga.ImageDebug.drawPath(result.box, {x: 0, y: 1}, drawingCtx, {color: "#00F", lineWidth: 2}); | |
} | |
if (result.codeResult && result.codeResult.code) { | |
Quagga.ImageDebug.drawPath(result.line, {x: 'x', y: 'y'}, drawingCtx, {color: 'red', lineWidth: 3}); | |
} | |
} | |
}); | |
Quagga.onDetected(function(result) { | |
var code = result.codeResult.code; | |
if (App.lastResult !== code) { | |
$('#results').append('<div>' + code + '</div>'); | |
App.lastResult = code; | |
} | |
}); | |
}); | |
</script> | |
</body> | |
</html> |
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