1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="https://cdn.jsdelivr.net/npm/dat.gui@0.7.6/build/dat.gui.js"></script>
<script src="../dist/zrender.js"></script>
<script src="lib/config.js"></script>
</head>
<body>
<style>
html, body, #main {
width: 100%;
height: 100%;
margin: 0;
}
</style>
<div id="main"></div>
<script type="text/javascript">
const zr = zrender.init(document.getElementById('main'), {
renderer: window.__ZRENDER__DEFAULT__RENDERER__
});
let r = 100;
let cx = r;
let cy = r + 10;
let compoundPath = new zrender.CompoundPath({
segmentIgnoreThreshold: 20,
shape: {
paths: []
},
style: {
fill: null,
stroke: '#000',
lineWidth: 2
}
})
zr.add(compoundPath);
for (let i = 0; i < 30; i++) {
const points = [];
for (let i = 0; i < 100; i++) {
let rad = Math.PI * 2 * i / 100;
let x = Math.cos(rad) * r + cx;
let y = Math.sin(rad) * r + cy;
points.push([x, y]);
}
const poly = new zrender.Polygon({
shape: {
points
}
});
compoundPath.shape.paths.push(poly);
const text = new zrender.Text({
style: {
text: `R: ${+r.toPrecision(2)}`,
align: 'left'
},
x: cx,
y: cy + 100,
rotation: -Math.PI / 2
});
zr.add(text);
cx += Math.max(r * 2, 15);
r /= 1.3;
}
function update() {
compoundPath.attr('segmentIgnoreThreshold', config.segmentIgnoreThreshold);
}
const config = {
segmentIgnoreThreshold: 20
};
const gui = new dat.GUI();
gui.add(config, 'segmentIgnoreThreshold', 0, 100).onChange(update);
</script>
</body>
</html>
|
