kity
Version:
Kity Graphic Library
61 lines (57 loc) • 2.1 kB
HTML
<html>
<head>
<title>Bezier Example</title>
<script src="../dist/kity.js"></script>
<script>
</script>
</head>
<body></body>
<script>
var BezierViewer = kity.createClass({
base: kity.Group,
constructor: function(bezier) {
this.callBase();
this.addShape(bezier);
this.bezier = bezier.fill(new kity.Color('red').set('a', 0.2));
this.update();
},
update: function() {
var points = this.bezier.getBezierPoints();
if (this.group) {
this.group.remove();
}
this.addShape(this.group = new kity.Group().pipe(function() {
for (var i = 0; i < points.length; i++) {
var p = points[i], f, b;
f = p.getForward();
b = p.getBackward();
p = p.getVertex();
this.addShape(new kity.Path().pipe(function() {
var d = this.getDrawer();
d.moveTo(b.x, b.y);
d.lineTo(p.x, p.y);
d.lineTo(f.x, f.y);
this.fill('none');
this.stroke('red');
}));
this.addShape(new kity.Rect(6, 6, b.x - 3, b.y - 3).stroke('red').fill('white'));
this.addShape(new kity.Rect(6, 6, f.x - 3, f.y - 3).stroke('red').fill('white'));
this.addShape(new kity.Rect(6, 6, p.x - 3, p.y - 3).fill('red'));
}
}));
}
});
var paper = new kity.Paper(document.body);
paper.setWidth(600).setHeight(400);
var bezier = new kity.Bezier().addPoints([
new kity.BezierPoint(300, 150, false).setForward(350, 50).setBackward(250, 50),
new kity.BezierPoint(450, 150).setForward(470, 200),
new kity.BezierPoint(300, 350, false).setForward(200, 300).setBackward(400, 300),
new kity.BezierPoint(150, 150).setBackward(130, 200),
new kity.BezierPoint(300, 150, false).setForward(350, 50).setBackward(250, 50)
]);
paper.addShape(window.v = new BezierViewer(bezier));
window.p = bezier.getPoint(1);
</script>
</html>