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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
<title>Moving Path Handles</title> | |
<script type="text/javascript" src="http://paperjs.org/static/js/paper.js"></script> | |
<script type="text/paperscript" canvas="canvas"> | |
var handle; | |
// Create a circle shaped path at the center of the view, | |
// with a radius of 100: | |
var path = new Path.Circle(view.center, 100); | |
path.strokeColor = 'black'; | |
// Fully select the path, so we can see its handles: | |
path.fullySelected = true; | |
function onMouseDown(event) { | |
handle = null; | |
// Do a hit test on path for handles: | |
var hitResult = path.hitTest(event.point, { handles: true }); | |
if (hitResult) { | |
if (hitResult.type === 'handle-in') { | |
handle = hitResult.segment.handleIn; | |
} else if (hitResult.type === 'handle-out') { | |
handle = hitResult.segment.handleOut; | |
} else if (hitResult.type === 'segment') { | |
handle = hitResult.segment.point; | |
} | |
} | |
} | |
function onMouseDrag(event) { | |
// If we hit a handle before, move it: | |
if (handle) { | |
handle.x += event.delta.x; | |
handle.y += event.delta.y; | |
} | |
} | |
</script> | |
</head> | |
<body style="margin:0;overflow:hidden"> | |
<canvas id="canvas" resize></canvas> | |
</body> | |
</html> |
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