mirror of
https://github.com/scratchfoundation/paper.js.git
synced 2025-01-01 10:48:38 -05:00
100 lines
No EOL
2.2 KiB
HTML
100 lines
No EOL
2.2 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Path Structure</title>
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<link rel="stylesheet" href="../css/style.css">
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<script type="text/javascript" src="../../dist/paper.js"></script>
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<script type="text/paperscript" canvas="canvas">
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var path = new Path({
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fullySelected: true
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});
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var segmentTexts = new Layer();
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for (var i = 0; i < 3; i++) {
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new PointText({
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content: i,
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justification: 'center',
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fontSize: 12
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});
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}
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var handleTexts = new Layer();
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for (var i = 0; i < 2; i++) {
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new PointText({
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content: 'handleIn',
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justification: 'center',
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fontSize: 12
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});
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new PointText({
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content: 'handleOut',
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justification: 'center',
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fontSize: 12
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});
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}
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function onResize() {
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var width = view.size.width;
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var offset = width / 30;
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var vector = new Point({
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angle: 45,
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length: width / 5
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});
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var yMiddle = view.size.height / 2;
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path.segments = [
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{
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point: [offset, yMiddle],
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handleIn: null,
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handleOut: vector.rotate(-90)
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},
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{
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point: [width / 2, yMiddle],
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handleIn: vector.rotate(-180),
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handleOut: vector
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},
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{
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point: [width - offset, yMiddle],
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handleIn: vector.rotate(90),
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handleOut: null
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}
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];
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for (var i = 0; i < path.segments.length; i++) {
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var point = path.segments[i].point;
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segmentTexts.children[i].point = point - [0, 10];
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}
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onMouseMove({
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point: view.bounds.bottomRight
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});
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}
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function onMouseMove(event) {
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var point = event.point.clone();
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// Constrain the event point, to not cut off the text:
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if (point.y < 22) {
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point.y = 22;
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}
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if (point.y > view.size.height - 24) {
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point.y = view.size.height - 24;
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}
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var delta = point - view.center;
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for (var i = 0; i < path.curves.length; i++) {
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var curve = path.curves[i];
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curve.handle1.y = curve.handle2.y = delta.y * (i % 2 ? 1 : -1);
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var firstPoint = curve.point1 + curve.handle1;
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var secondPoint = curve.point2 + curve.handle2;
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var yMiddle = view.size.height / 2;
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var offset = (firstPoint.y < yMiddle ? [0, 10] : [0, -18]);
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handleTexts.children[i * 2].point = secondPoint - offset;
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handleTexts.children[i * 2 + 1].point = firstPoint - offset;
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}
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}
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</script>
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</head>
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<body>
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<canvas id='canvas' resize></canvas>
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</body>
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</html> |