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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Incremental Rendering</title>
<script src="../dist/zrender.js"></script>
</head>
<body style="margin:0px;">
<canvas id="main" width="1000px" height="600px" style="width:1000px;height:600px;"></canvas>
<script type="text/javascript">
var zr = zrender.init(document.getElementById('main'));
zr.add(new zrender.Rect({
shape: {
x: 0,
y: 0,
width: zr.getWidth(),
height: zr.getHeight()
},
style: {
fill: 'red'
}
}));
var countText = new zrender.Text({
zlevel: 1,
style: {
text: 0,
x: 10,
y: 10,
textFont: '40px sans-serif',
textFill: '#fff',
textStroke: '#000',
textStrokeWidth: 2
}
});
zr.add(countText);
var count = 0;
zr.animation.on('frame', function () {
if (count > 2e4) {
return;
}
for (var i = 0; i < 200; i++) {
var circleShape = new zrender.Circle({
shape: {
r: 5 + Math.random() * 5
},
style: {
fill: '#121',
blend: 'lighter'
},
incremental: true,
position: [Math.random() * zr.getWidth(), Math.random() * zr.getHeight()]
});
zr.add(circleShape);
}
countText.style.text += 200;
countText.dirty();
count += 200;
});
</script>
</body>
</html>
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