Created
September 5, 2013 02:35
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LEAP: Simple movement
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<!DOCTYPE html> | |
<html> | |
<head> | |
<script src="//js.leapmotion.com/0.2.0/leap.min.js"></script> | |
</head> | |
<body> | |
<div id="canvas"> | |
<svg height="100%" width="100%"> | |
<circle id="circle" cx="250" cy="250" r="50" stroke="black"> | |
</svg> | |
</div> | |
<div id="data"></div> | |
</body> | |
<script> | |
console.log(document.getElementById("circle").getAttribute("cx")); | |
var pausedFrame = null; | |
var latestFrame = null; | |
var oldFrame = null; | |
window.onkeypress = function(e) { | |
if (e.charCode == 32) { | |
if (pausedFrame == null) { | |
pausedFrame = latestFrame; | |
} else { | |
pausedFrame = null; | |
} | |
} | |
}; | |
var controller = new Leap.Controller({enableGestures: true}); | |
controller.loop(function(frame) { | |
oldFrame = latestFrame; | |
latestFrame = frame; | |
//if(!pausedFrame) | |
//document.getElementById('data').innerHTML = (pausedFrame ? "<p><b>PAUSED</b></p>" : "") + "<div>"+(pausedFrame || latestFrame).dump()+"</div>"; | |
var pointableCount = latestFrame.pointables.length; | |
var handCount = latestFrame.hands.length; | |
if(oldFrame && !pausedFrame && handCount == 1 && pointableCount >= 4){ | |
var translation = latestFrame.hands[0].translation(oldFrame) | |
var centerX = document.getElementById("circle").getAttribute("cx"); | |
document.getElementById("circle").setAttribute("cx", +centerX + (3 * translation[0])); | |
var centerY = document.getElementById("circle").getAttribute("cy"); | |
document.getElementById("circle").setAttribute("cy", +centerY - (3 * translation[1])); | |
var radius = document.getElementById("circle").getAttribute("r"); | |
document.getElementById("circle").setAttribute("r", +radius + translation[2]); | |
} | |
}); | |
</script> | |
</html> |
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