paper
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The Swiss Army Knife of Vector Graphics Scripting
83 lines (77 loc) • 2.54 kB
HTML
<html>
<head>
<meta charset="UTF-8">
<title>Path Structure</title>
<link rel="stylesheet" href="../css/style.css">
<script type="text/javascript" src="../../dist/paper-full.js"></script>
<script type="text/paperscript" canvas="canvas">
var y = view.size.height / 2;
var width = view.size.width;
var vector = new Point({
angle: 45,
length: width / 5
});
var offset = width / 30;
var handleTexts = [];
var path = new Path({
segments: [
[[offset, y], null, vector.rotate(-90)],
[[width / 2, y], vector.rotate(-180), vector],
[[width - offset, y], vector.rotate(90), null]
],
fullySelected: true
});
function onMouseMove(event) {
var point = event.point.clone();
// Constrain the event point, to not cut off the text:
if (point.y < 22)
point.y = 22;
if (point.y > view.size.height - 24)
point.y = view.size.height - 24;
var delta = point - view.center;
for (var i = 0; i < 2; i++) {
var curve = path.curves[i];
curve.handle1.y = curve.handle2.y = delta.y * (i % 2 ? 1 : -1);
var firstPoint = curve.point1 + curve.handle1;
var secondPoint = curve.point2 + curve.handle2;
handleTexts[i * 2].point = secondPoint -
(firstPoint.y < y ? [0, 10] : [0, -18]);
handleTexts[i * 2 + 1].point = firstPoint -
(firstPoint.y < y ? [0, 10] : [0, -18]);
}
}
project.currentStyle.fillColor = 'black';
for (var i = 0; i < 3; i++) {
var segment = path.segments[i];
var text = new PointText({
point: segment.point - [0, 10],
content: i,
fontSize: 12,
justification: 'center'
});
}
for (var i = 0; i < 2; i++) {
var handleInText = new PointText({
content: 'handleIn',
fontSize: 12,
justification: 'center'
});
handleTexts.push(handleInText);
var handleOutText = new PointText({
content: 'handleOut',
fontSize: 12,
justification: 'center'
});
handleTexts.push(handleOutText);
}
// Call onMouseMove once to correctly position the text items:
onMouseMove({
point: view.center + vector.rotate(-90)
});
</script>
</head>
<body>
<canvas id='canvas' resize></canvas>
</body>
</html>